BlackTreeCVE Intelligence
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Full vulnerability report · 2019
CVE-2019-17595High confidence

There is a heap-based buffer over-read in the fmt_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012

Siemens · SIMATIC S7-1500 CPU 1518-4 PN/DP MFP

Official source article: Siemens SSA-398330 ↗. Check the applicable product and release in the original source.

5.4MediumCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 5 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:High, raised one band.upgradedsince 5 Aug 2024

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • A structured source references public exploit or proof-of-concept material.
  • EPSS is 2.22% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 5 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Debian findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

4 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcencursesVendor fix publishedDebian records a fixed source-package version for this release.6.1+20191019-1Debian Security Tracker ↗Source updated 23 Oct 2026
Debian bookwormbookworm · sourcencursesVendor fix publishedDebian records a fixed source-package version for this release.6.1+20191019-1Debian Security Tracker ↗Source updated 23 Oct 2026
Debian forkyforky · sourcencursesVendor fix publishedDebian records a fixed source-package version for this release.6.1+20191019-1Debian Security Tracker ↗Source updated 23 Oct 2026
Debian sidsid · sourcencursesVendor fix publishedDebian records a fixed source-package version for this release.6.1+20191019-1Debian Security Tracker ↗Source updated 23 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

2 current
SSA-398330 · CSAF 2.0 · revision 19 · interimSiemens ProductCERTCVE-2019-17595
5 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.0 < V3.1.5
  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.0 < V3.1.5
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.0 < V3.1.5
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= V3.1.0 < V3.1.5
  • SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= V3.1.0 < V3.1.5
Summary
There is a heap-based buffer over-read in the fmt_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.
Remediation
Update to V3.1.5 or later version
CVE-2019-17595 · CSAF 2.0 · revision 51 · interimSUSE Product Security TeamCVE-2019-17595
264 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • libncurses5 as component of HPE Helion OpenStack 8
  • libncurses5-32bit as component of HPE Helion OpenStack 8
  • libncurses6 as component of HPE Helion OpenStack 8
  • libncurses6-32bit as component of HPE Helion OpenStack 8
  • ncurses as component of HPE Helion OpenStack 8
  • ncurses-devel as component of HPE Helion OpenStack 8
  • ncurses-devel-32bit as component of HPE Helion OpenStack 8
  • ncurses-utils as component of HPE Helion OpenStack 8
  • tack as component of HPE Helion OpenStack 8
  • terminfo as component of HPE Helion OpenStack 8
  • terminfo-base as component of HPE Helion OpenStack 8
  • libncurses5 as component of SUSE CaaS Platform 4.0
Summary
There is a heap-based buffer over-read in the fmt_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2019-7923

No EUVD known-exploited evidence

There is a heap-based buffer over-read in the fmt_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
0.0
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 5 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

There is a heap-based buffer over-read in the fmt_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.

What

There is a heap-based buffer over-read in the fmt_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

There is a heap-based buffer over-read in the fmt_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
a network path → Out-of-bounds Read → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-125 ↗

CWE-125: Out-of-bounds Read. The product reads data past the end, or before the beginning, of the intended buffer.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CLowConfidentiality impact: A successful attack can cause a limited loss.INoneIntegrity impact: No direct loss is represented by this metric.ALowAvailability impact: A successful attack can cause a limited loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-125Public exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2019-7923Official EUVD mapping

There is a heap-based buffer over-read in the fmt_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.

Official EUVD record ↗
BSI · German · WID-SEC-2022-0571Red Hat Enterprise Linux: Mehrere Schwachstellen

Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen Cross-Site-Scripting-Angriff durchzuführen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen, Sicherheitsmaßnahmen zu umgehen, beliebigen Code auszuführen, Dateien zu manipulieren und einen nicht spezifizierten Angriff durchzuführen.

Official advisory ↗
CISA · English · ICSA-23-348-10Siemens SIMATIC S7-1500

There is a heap-based buffer over-read in the fmt_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-1015Multiples vulnérabilités dans les produits Siemens

d?id=CVE-2019-13627 Référence CVE CVE-2019-15847 https://www.cve.org/CVERecord?id=CVE-2019-15847 Référence CVE CVE-2019-15903 https://www.cve.org/CVERecord?id=CVE-2019-15903 Référence CVE CVE-2019-16056 https://www.cve.org/CVERecord?id=CVE-2019-16056 Référence CVE CVE-2019-16168 https://www.cve.org/CVERecord?id=CVE-2019-16168 Référence CVE CVE-2019-16905 https://www.cve.org/CVERecord?id=CVE-2019-16905 Référence CVE CVE-2019-17498 https://www.cve.org/CVERecord?id=CVE-2019-17498 Référence CVE CVE-2019-17543 https://www.cve.org/CVERecord?id=CVE-2019-17543 Référence CVE CVE-2019-17594 https://www.cve.org/CVERecord?id=CVE-2019-17594 Référence CVE CVE-2019-17595 https://www.cve.org/CVERecord?id=CVE-2019-17595 Référence CVE CVE-2019-18224 https://www.cve.org/CVERecord?id=CVE-2019-18224 Référence CVE CVE-2019-18276 https://www.cve.org/CVERecord?id=CVE-2019-18276 Référence CVE CVE-2019-18348 https://www.cve.org/CVERecord?id=CVE-2019-18348 Référence CVE CVE-2019-19126 https://www.cve.org/CVERecord?id=CVE-2019-19126 Référence CVE CVE-2019-19242 https://www.cve.org/CVERecord?id=CVE-2019-19242 Référence CVE CVE-2019-19244 https://www.cve.org/CVERecord?id=CVE-2019-19244 Référence CVE CVE-2019-19317 https://www.cve.org/CVERecord?id=CVE-2019-19317 Référence CVE CVE-2019-19603 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-386Multiples vulnérabilités dans IBM QRadar SIEM

rabilités ont été découvertes dans IBM QRadar SIEM. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et une atteinte à l'intégrité des données. Solution Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation). Documentation Bulletin de sécurité IBM 6574453 du 25 avril 2022 https://www.ibm.com/support/pages/node/6574453 Bulletin de sécurité IBM 6574787 du 25 avril 2022 https://www.ibm.com/support/pages/node/6574787 Référence CVE CVE-2019-17594 https://www.cve.org/CVERecord?id=CVE-2019-17594 Référence CVE CVE-2019-17595 https://www.cve.org/CVERecord?id=CVE-2019-17595 Référence CVE CVE-2019-20838 https://www.cve.org/CVERecord?id=CVE-2019-20838 Référence CVE CVE-2020-12762 https://www.cve.org/CVERecord?id=CVE-2020-12762 Référence CVE CVE-2020-14155 https://www.cve.org/CVERecord?id=CVE-2020-14155 Référence CVE CVE-2020-16135 https://www.cve.org/CVERecord?id=CVE-2020-16135 Référence CVE CVE-2020-24370 https://www.cve.org/CVERecord?id=CVE-2020-24370 Référence CVE CVE-2020-8022 https://www.cve.org/CVERecord?id=CVE-2020-8022 Référence CVE CVE-2020-9488 https://www.cve.org/CVERecord?id=CVE-2020-9488 Référence CVE CVE-2021-20231 https://www.cve.org/CVERecord?id=CVE-

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2019-010764ncurses における境界外読み取りに関する脆弱性

ncurses には、境界外読み取りに関する脆弱性が存在します。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Update to V3.1.5 or later version
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 14 Oct 2019 · Last source change 14 Oct 2026, 06:54 UTC · CWE-125 · Out-of-bounds Read

CVE recordCVE.org · 5.2
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-09-01
European sourceENISA EUVD · EUVD-2019-7923
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Vendor guidanceAuthoritative vendor guidance changed: added remediation: lists.gnu.org/msg00045.html; removed patch: cert-portal.siemens.com/ssa-398330.html; removed remediation: cert-portal.siemens.com/ssa-398330.html.
    Before
    patch: cert-portal.siemens.com/ssa-398330.html · patch: lists.gnu.org/msg00045.html · remediation: cert-portal.siemens.com/ssa-398330.html · 1 more references
    After
    patch: lists.gnu.org/msg00045.html · remediation: lists.gnu.org/msg00045.html · vendor advisory: lists.gnu.org/msg00013.html
    lists.gnu.org ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    SIMATIC S7-1500 CPU 1518-4 PN/DP MFP: V3.1.0 < V3.1.5; SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP: V3.1.0 < V3.1.5; SIPLUS S7-1500 CPU 1518-4 PN/DP MFP: V3.1.0 < V3.1.5 · Fixed: Update to V3.1.5 or later version
    After
    SIMATIC S7-1500 CPU 1518-4 PN/DP MFP: V3.1.0 < V3.1.5; SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP: V3.1.0 < V3.1.5; SIPLUS S7-1500 CPU 1518-4 PN/DP MFP: V3.1.0 < V3.1.5 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    Other authority ↗
  3. Vendor guidanceAuthoritative vendor guidance changed: added remediation: lists.gnu.org/msg00045.html; removed remediation: cert-portal.siemens.com/ssa-398330.html.
    Before
    patch: lists.gnu.org/msg00045.html · remediation: cert-portal.siemens.com/ssa-398330.html · vendor advisory: lists.gnu.org/msg00013.html
    After
    patch: lists.gnu.org/msg00045.html · remediation: lists.gnu.org/msg00045.html · vendor advisory: lists.gnu.org/msg00013.html
    lists.gnu.org ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    n/a · Fixed: Update to V3.1.5 or later version
    After
    SIMATIC S7-1500 CPU 1518-4 PN/DP MFP: V3.1.0 < V3.1.5; SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP: V3.1.0 < V3.1.5; SIPLUS S7-1500 CPU 1518-4 PN/DP MFP: V3.1.0 < V3.1.5 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    Other authority ↗
  5. Affected versionsThe structured affected or fixed version information changed.
    Before
    SIMATIC S7-1500 CPU 1518-4 PN/DP MFP: V3.1.0 < V3.1.5; SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP: V3.1.0 < V3.1.5; SIPLUS S7-1500 CPU 1518-4 PN/DP MFP: V3.1.0 < V3.1.5 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    SIMATIC S7-1500 CPU 1518-4 PN/DP MFP: V3.1.0 < V3.1.5; SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP: V3.1.0 < V3.1.5; SIPLUS S7-1500 CPU 1518-4 PN/DP MFP: V3.1.0 < V3.1.5 · Fixed: Update to V3.1.5 or later version
    Siemens ProductCERT ↗
  6. Affected versionsThe structured affected or fixed version information changed.
    Before
    n/a · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    n/a · Fixed: Update to V3.1.5 or later version
    Siemens ProductCERT ↗
  7. ENISA EUVD mappingEUVD-2019-7923 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2019-7923"}
    ENISA EUVD ↗
  8. Vendor guidanceAuthoritative vendor guidance changed: added patch: lists.gnu.org/msg00045.html; added remediation: lists.gnu.org/msg00045.html; removed vendor advisory: lists.opensuse.org/msg00059.html; removed vendor advisory: lists.opensuse.org/msg00061.html; 1 further additions; 1 further removals.
    Before
    vendor advisory: lists.opensuse.org/msg00059.html · vendor advisory: lists.opensuse.org/msg00061.html · vendor advisory: security.gentoo.org/202101-28
    After
    patch: lists.gnu.org/msg00045.html · remediation: lists.gnu.org/msg00045.html · vendor advisory: lists.gnu.org/msg00013.html
    lists.gnu.org ↗
  9. Affected versionsThe structured affected or fixed version information changed.
    Before
    n/a · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    n/a · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
  10. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    lists.gnu.org ↗
  11. Public exploit evidencePublic exploit evidence changed from No public exploit to Public exploit reference.
    Before
    No public exploit
    After
    Public exploit reference
    lists.gnu.org ↗
  12. SeveritySeverity changed from Unknown to Medium.
    Before
    Unknown
    After
    Medium
    NIST NVD ↗
  13. CVSS scoreCVSS score changed from not recorded to 5.4 (CVSS 3.1 · NIST NVD · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L).
    Before
    not recorded
    After
    5.4 (CVSS 3.1 · NIST NVD · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L)
    NIST NVD ↗
  14. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2019-7923↗Siemens ProductCERT security advisory · Siemens SSA-398330↗CVE authority or vendor reference↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2019-17595 · cve.blacktree.nl