CVE-2017-11542: tcpdump 4.9.0 has a heap-based buffer over-read in the pimv1_print function in print-pim.c

Distribution release	Source package	Vendor state	Fixed version	Evidence
Debian trixietrixie · source	`tcpdump`	Vendor fix publishedDebian records a fixed source-package version for this release.	`4.9.1-3`	Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · source	`tcpdump`	Vendor fix publishedDebian records a fixed source-package version for this release.	`4.9.1-3`	Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · source	`tcpdump`	Vendor fix publishedDebian records a fixed source-package version for this release.	`4.9.1-3`	Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · source	`tcpdump`	Vendor fix publishedDebian records a fixed source-package version for this release.	`4.9.1-3`	Debian Security Tracker ↗Source updated 5 Oct 2026

Recommended actionWithin 72 hours

Critical technical impact with a remotely reachable, unauthenticated path and a public exploit reference; no CISA KEV confirmation is currently recorded.

Fix not verified

What, why and how

tcpdump 4.9.0 has a heap-based buffer over-read in the pimv1_print function in print-pim.c.

What

tcpdump 4.9.0 has a heap-based buffer over-read in the pimv1_print function in print-pim.c.

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 or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

tcpdump 4.9.0 has a heap-based buffer over-read in the pimv1_print function in print-pim.c.

Why

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

How

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: None
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Common Vulnerability Scoring System 3.0: 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.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major 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

Official authority intelligence

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

ENISA EUVD · EUVD-2017-3158Official EUVD mapping

0 linked advisory records.

Official EUVD record ↗

BSI · German · WID-SEC-2025-0370Apple Mac OS: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstelle in Apple Mac OS ausnutzen, um Code mit Kernel Privilegien auszuführen, Sicherheitsvorkehrungen zu umgehen, einen Denial of Service Angriff durchzuführen oder vertrauliche Daten einzusehen.

Official advisory ↗

Canadian Centre for Cyber Security · English · AV17-161Apple security updates

m security updates for iCloud for Windows, iOS, iTunes for Windows, macOS High Sierra, macOS Sierra, macOS El Capitan, Safari, tvOS and watchOS. Assessment Apple has released the following support articles addressing security vulnerabilities in various products: -iCloud for Windows 7.1 -iOS 11.1 -iTunes 12.7.1 for Windows -macOS High Sierra 10.13.1, Security Update 2017-001 Sierra, and Security Update 2017-004 El Capitan -Safari 11.1 -tvOS 11.1 -watchOS 4.1 CVE Reference: CVE-2016-2161, CVE-2016-4736, CVE-2016-5387, CVE-2016-736, CVE-2016-8740, CVE-2016-8743, CVE-2017-1000100, CVE-2017-1000101, CVE-2017-11103, CVE-2017-11108, CVE-2017-11541, CVE-2017-11542, CVE-2017-11543, CVE-2017-12893, CVE-2017-12894, CVE-2017-12895, CVE-2017-12896, CVE-2017-12897, CVE-2017-12898, CVE-2017-12899, CVE-2017-12900, CVE-2017-12901, CVE-2017-12902, CVE-2017-12985, CVE-2017-12986, CVE-2017-12987, CVE-2017-12988, CVE-2017-12989, CVE-2017-12990, CVE-2017-12991, CVE-2017-12992, CVE-2017-12993, CVE-2017-12994, CVE-2017-12995, CVE-2017-12996, CVE-2017-12997, CVE-2017-12998, CVE-2017-12999, CVE-2017-13000, CVE-2017-13001, CVE-2017-13002, CVE-2017-13003, CVE-2017-13004, CVE-2017-13005, CVE-2017-13006, CVE-2017-13007, CVE-2017-13008, CVE-2017-13009, CVE-2017-13010, CVE-2017-13011, CVE-2017-13012, CVE-2017-13013, CVE-2017

Official advisory ↗

CERT-FR · French · CERTFR-2017-AVI-385Multiples vulnérabilités dans les produits Apple

?id=CVE-2016-4736 Référence CVE CVE-2016-5387 https://www.cve.org/CVERecord?id=CVE-2016-5387 Référence CVE CVE-2016-8740 https://www.cve.org/CVERecord?id=CVE-2016-8740 Référence CVE CVE-2016-8743 https://www.cve.org/CVERecord?id=CVE-2016-8743 Référence CVE CVE-2017-1000100 https://www.cve.org/CVERecord?id=CVE-2017-1000100 Référence CVE CVE-2017-1000101 https://www.cve.org/CVERecord?id=CVE-2017-1000101 Référence CVE CVE-2017-11103 https://www.cve.org/CVERecord?id=CVE-2017-11103 Référence CVE CVE-2017-11108 https://www.cve.org/CVERecord?id=CVE-2017-11108 Référence CVE CVE-2017-11541 https://www.cve.org/CVERecord?id=CVE-2017-11541 Référence CVE CVE-2017-11542 https://www.cve.org/CVERecord?id=CVE-2017-11542 Référence CVE CVE-2017-11543 https://www.cve.org/CVERecord?id=CVE-2017-11543 Référence CVE CVE-2017-12893 https://www.cve.org/CVERecord?id=CVE-2017-12893 Référence CVE CVE-2017-12894 https://www.cve.org/CVERecord?id=CVE-2017-12894 Référence CVE CVE-2017-12895 https://www.cve.org/CVERecord?id=CVE-2017-12895 Référence CVE CVE-2017-12896 https://www.cve.org/CVERecord?id=CVE-2017-12896 Référence CVE CVE-2017-12897 https://www.cve.org/CVERecord?id=CVE-2017-12897 Référence CVE CVE-2017-12898 https://www.cve.org/CVERecord?id=CVE-2017-12898 Référence CVE CVE-2017-12899 https://www.cve.org/CVERecord?id=

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2017-005997tcpdump の print-pim.c の pimv1_print 関数におけるヒープベースのバッファオーバーリードの脆弱性

tcpdump の print-pim.c の pimv1_print 関数には、ヒープベースのバッファオーバーリードの脆弱性が存在します。

Official advisory ↗

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 not verified
Affected: n/a
Fixed: No fixed version is explicitly recorded in the structured CVE data.
Action: No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
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.

Evidence and provenance

Published 23 Jul 2017 · Last source change 5 Aug 2024, 18:12 UTC · CWE-125 · Out-of-bounds Read

CVE recordCVE.org · 5.1

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-2017-3158

Product sourceUnavailable

Remediation sourceCVE/CNA references

CWE sourceNIST NVD

NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗

1 Sep 2026, 02:42 UTC
ENISA EUVD mappingEUVD-2017-3158 was added to the official ENISA EUVD mapping for this CVE.
Before
not recorded
After
{"euvdId":"EUVD-2017-3158"}
ENISA EUVD ↗
5 Aug 2024, 18:12 UTC
Vendor guidanceAuthoritative vendor guidance changed: removed vendor advisory: access.redhat.com/RHEA-2018:0705; removed vendor advisory: debian.org/dsa-3971; 1 further removals.
Before
vendor advisory: access.redhat.com/RHEA-2018:0705 · vendor advisory: debian.org/dsa-3971 · vendor advisory: security.gentoo.org/201709-23
After
no authoritative guidance recorded
CNA ↗
5 Aug 2024, 18:12 UTC
Public exploit evidencePublic exploit evidence changed from No public exploit to Public exploit reference.
Before
No public exploit
After
Public exploit reference
github.com ↗
5 Aug 2024, 18:12 UTC
SeveritySeverity changed from Unknown to Critical.
Before
Unknown
After
Critical
NIST NVD ↗
5 Aug 2024, 18:12 UTC
CVSS scoreCVSS score changed from not recorded to 9.8 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Before
not recorded
After
9.8 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
NIST NVD ↗
5 Aug 2024, 18:12 UTC
Catalogue recordCVE added to the BlackTree catalogue.
CNA ↗

2017-07-23CVE published

ENISA EUVD · EUVD-2017-3158↗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.

tcpdump 4.9.0 has a heap-based buffer over-read in the pimv1_print function in print-pim.c

Published severity in operational context

Evidence used

Compensating controls

Verification

Release-specific package status

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

ENISA European Vulnerability Database

EUVD-2017-3158

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication