Information Exposure The advisory has been revoked - it doesn't affect any version of package android  (opens in a new tab)


Threat Intelligence

EPSS
0.06% (27th percentile)

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  • Snyk IDSNYK-UBUNTU1404-ANDROID-622095
  • published10 Sept 2020
  • disclosed18 Apr 2016

Introduced: 18 Apr 2016

CVE-2016-2427  (opens in a new tab)
CWE-200  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:14.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream android package and not the android package as distributed by Ubuntu.

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.