CVE-2016-2427

Published Apr 18, 2016 CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
The AES-GCM specification in RFC 5084, as used in Android 5.x and 6.x, recommends 12 octets for the aes-ICVlen parameter field, which might make it easier for attackers to defeat a cryptographic protection mechanism and discover an authentication key via a crafted application, aka internal bug 26234568. NOTE: The vendor disputes the existence of this potential issue in Android, stating "This CVE was raised in error: it referred to the authentication tag size in GCM, whose default according to ASN.1 encoding (12 bytes) can lead to vulnerabilities. After careful consideration, it was decided that the insecure default value of 12 bytes was a default only for the encoding and not default anywhere else in Android, and hence no vulnerability existed.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00111}

epss

{'score': 0.00106}

Type Values Removed Values Added
First Time appeared Bouncycastle bc-java
CPEs cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-java-crytography-api:1.54:*:*:*:*:*:*:* cpe:2.3:a:bouncycastle:bc-java:1.54:*:*:*:*:*:*:*
Vendors & Products Bouncycastle legion-of-the-bouncy-castle-java-crytography-api
Bouncycastle bc-java
Weaknesses

Sources

Status
PUBLISHED
Assigner
google_android
Published
Updated
Aug 5, 2024, 11:24 PM
Reserved
Feb 18, 2016, 12:00 AM
Status
Modified
Published
Apr 18, 2016, 12:59 AM
Modified
Jun 17, 2026, 12:44 AM