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Full vulnerability report · 2018
CVE-2017-13252High confidence

In CryptoHal::decrypt of CryptoHal.cpp, there is an out of bounds write due to improper input validation that results in a read from uninitialized memory

Google Inc. · Android

7.8HighCVSS 3.0
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Fix not verified
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.56% for the current model date.

Compensating controls

  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Google Inc. Android and falls inside the recorded affected range.
  2. Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
  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.

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-2017-4769

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

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
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Fix not verified
01

What, why and how

In CryptoHal::decrypt of CryptoHal.cpp, there is an out of bounds write due to improper input validation that results in a read from uninitialized memory. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: 8.0, 8.1. Android ID: A-70526702.

What

In CryptoHal::decrypt of CryptoHal.cpp, there is an out of bounds write due to improper input validation that results in a read from uninitialized memory. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: 8.0, 8.1. Android ID: A-70526702.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

How

An attacker operating through local access 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

In CryptoHal::decrypt of CryptoHal.cpp, there is an out of bounds write due to improper input validation that results in a read from uninitialized memory. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: 8.0, 8.1. Android ID: A-70526702.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

How

An attacker operating through local access 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.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → Out-of-bounds Write → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
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-787 ↗

CWE-787: Out-of-bounds Write. The product writes 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:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.0: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.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.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
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
UnauthenticatedCWE-787
A

Official authority intelligence

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

Canadian Centre for Cyber Security · English · AV18-057Android security bulletin – March 2018

Number: AV18-057 Date: 06 April 2018 Purpose The purpose of this advisory is to bring attention to the Android Security Bulletin for March 2018. Assessment The Android Security Bulletin addresses security updates for multiple vulnerabilities. Successful exploitation could result in remote code execution. CVE References: CVE-2016-10393, CVE-2017-13248, CVE-2017-13249, CVE-2017-13250, CVE-2017-13251, CVE-2017-13252, CVE-2017-13253, CVE-2017-14878, CVE-2017-14882, CVE-2017-14885, CVE-2017-15815, CVE-2017-15821, CVE-2017-16525, CVE-2017-16529, CVE-2017-16530, CVE-2017-16531, CVE-2017-16533, CVE-2017-16535, CVE-2017-17773, CVE-2017-18056, CVE-2017-18063, CVE-2017-18064, CVE-2017-18067, CVE-2017-18068, CVE-2017-18069, CVE-2017-6281, CVE-2017-6286 Suggested action CCIRC recommends that system administrators test and deploy the vendor-released updates to affected applications accordingly. References https://source.android.com/security/bulletin/2018-03-01

Official advisory ↗
CERT-FR · French · CERTFR-2018-AVI-112Multiples vulnérabilités dans Google Android

ixel/2018-03-01 Référence CVE CVE-2016-10393 https://www.cve.org/CVERecord?id=CVE-2016-10393 Référence CVE CVE-2017-1000111 https://www.cve.org/CVERecord?id=CVE-2017-1000111 Référence CVE CVE-2017-11074 https://www.cve.org/CVERecord?id=CVE-2017-11074 Référence CVE CVE-2017-11082 https://www.cve.org/CVERecord?id=CVE-2017-11082 Référence CVE CVE-2017-13248 https://www.cve.org/CVERecord?id=CVE-2017-13248 Référence CVE CVE-2017-13249 https://www.cve.org/CVERecord?id=CVE-2017-13249 Référence CVE CVE-2017-13250 https://www.cve.org/CVERecord?id=CVE-2017-13250 Référence CVE CVE-2017-13251 https://www.cve.org/CVERecord?id=CVE-2017-13251 Référence CVE CVE-2017-13252 https://www.cve.org/CVERecord?id=CVE-2017-13252 Référence CVE CVE-2017-13253 https://www.cve.org/CVERecord?id=CVE-2017-13253 Référence CVE CVE-2017-13254 https://www.cve.org/CVERecord?id=CVE-2017-13254 Référence CVE CVE-2017-13255 https://www.cve.org/CVERecord?id=CVE-2017-13255 Référence CVE CVE-2017-13256 https://www.cve.org/CVERecord?id=CVE-2017-13256 Référence CVE CVE-2017-13257 https://www.cve.org/CVERecord?id=CVE-2017-13257 Référence CVE CVE-2017-13258 https://www.cve.org/CVERecord?id=CVE-2017-13258 Référence CVE CVE-2017-13259 https://www.cve.org/CVERecord?id=CVE-2017-13259 Référence CVE CVE-2017-13260 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2017-013069Android における入力確認に関する脆弱性

Android には、入力確認に関する脆弱性が存在します。 本脆弱性は、Android ID: A-70526702 として公開されています。

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 not verified
Affected
Android: 8.0, 8.1
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. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 4 Apr 2018 · Last source change 16 Sept 2024, 20:53 UTC · CWE-787 · Out-of-bounds Write

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-2017-4769
Product sourceCNA
Remediation sourceCVE/CNA references
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. ENISA EUVD mappingEUVD-2017-4769 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2017-4769"}
    ENISA EUVD ↗
  2. Vendor guidanceAuthoritative vendor guidance changed: added vendor advisory: source.android.com/2018-03-01.
    Before
    no authoritative guidance recorded
    After
    vendor advisory: source.android.com/2018-03-01
    source.android.com ↗
  3. SeveritySeverity changed from Unknown to High.
    Before
    Unknown
    After
    High
    NIST NVD ↗
  4. CVSS scoreCVSS score changed from not recorded to 7.8 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
    Before
    not recorded
    After
    7.8 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
    NIST NVD ↗
  5. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2017-4769↗Vendor advisory↗CVE authority or vendor 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-2017-13252 · cve.blacktree.nl