CVE-2016-2427 Information

Description

LICENSE README.md cvefilelist cvelist nvdcve nvdpages.sh scripts test-CVE-2017-1882.markdown test-CVE-2017-18822.markdown tmpvendorlinks DISPUTED LICENSE README.md cvefilelist cvelist nvdcve nvdpages.sh scripts test-CVE-2017-1882.markdown test-CVE-2017-18822.markdown tmpvendorlinks 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.\

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Reference

http://source.android.com/security/bulletin/2016-04-02.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.5