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CVE-2016-2427
CVE
Medium

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…

CVSS
5.5
Medium
EPSS
0.00
p33
Published
2016-01-01
Updated
2016-01-01
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.

Tags · CWE
Information disclosure
CWE-200
CAPEC-13
CAPEC-22
CAPEC-59
CAPEC-60
CAPEC-79
CAPEC-116
CAPEC-169
CAPEC-224
CAPEC-285
CAPEC-287
CAPEC-290
CAPEC-291
CAPEC-292
CAPEC-293
CAPEC-294
CAPEC-295
CAPEC-296
CAPEC-297
CAPEC-298
CAPEC-299
CAPEC-300
CAPEC-301
CAPEC-302
CAPEC-303
CAPEC-304
CAPEC-305
CAPEC-306
CAPEC-307
CAPEC-308
CAPEC-309
CAPEC-310
CAPEC-312
CAPEC-313
CAPEC-317
CAPEC-318
CAPEC-319
CAPEC-320
CAPEC-321
CAPEC-322
CAPEC-323
CAPEC-324
CAPEC-325
CAPEC-326
CAPEC-327
CAPEC-328
CAPEC-329
CAPEC-330
CAPEC-472
CAPEC-497
CAPEC-508
CAPEC-573
CAPEC-574
CAPEC-575
CAPEC-576
CAPEC-577
CAPEC-616
CAPEC-643
CAPEC-646
CAPEC-651
Affected products
Android
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Timeline
2016-01-01
Published
2016-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: L
Local (L)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: N
None (N)
User Interaction
UI: R
Required (R)
Scope
S: U
Unchanged (U)
Confidentiality Impact
C: H
High (H)
Integrity Impact
I: N
None (N)
Availability Impact
A: N
None (N)
Exploit indicators
EPSS
0.004 · p33
Known exploited (KEV)
No
MITRE ATT&CK
Inferred via CAPEC
└ via CAPEC-574 · CWE-200
└ via CAPEC-292 · CWE-200
└ via CAPEC-577 · CWE-200
└ via CAPEC-300 · CWE-200
└ via CAPEC-309 · CWE-200
└ via CAPEC-573 · CWE-200
└ via CAPEC-576 · CWE-200
└ via CAPEC-312 · CWE-200
└ via CAPEC-497 · CWE-200
└ via CAPEC-575 · CWE-200
└ via CAPEC-646 · CWE-200
└ via CAPEC-295 · CWE-200
└ via CAPEC-60 · CWE-200
└ via CAPEC-643 · CWE-200
└ via CAPEC-169 · CWE-200
└ via CAPEC-60 · CWE-200
└ via CAPEC-13 · CWE-200
└ via CAPEC-309 · CWE-200
└ via CAPEC-169 · CWE-200
└ via CAPEC-169 · CWE-200
└ via CAPEC-576 · CWE-200
Known exploits — Сканер-ВС
No Сканер-ВС checks registered for this vulnerability yet.
Affected products
ProductVendorStatus
androidTracked
androidTracked
androidTracked
androidTracked
androidTracked
bouncycastleTracked
bouncycastleTracked
bouncycastleTracked
bouncycastleTracked
bouncycastleTracked
bouncycastleTracked
android*Tracked
bc-java*Tracked
Source databases
CVE
UBU