CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
23.6%
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.
Vendor | Product | Version | CPE |
---|---|---|---|
bouncycastle | legion-of-the-bouncy-castle-java-crytography-api | 1.54 | cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-java-crytography-api:1.54:*:*:*:*:*:*:* |
android | 5.0 | cpe:2.3:o:google:android:5.0:*:*:*:*:*:*:* | |
android | 5.0.1 | cpe:2.3:o:google:android:5.0.1:*:*:*:*:*:*:* | |
android | 5.1 | cpe:2.3:o:google:android:5.1:*:*:*:*:*:*:* | |
android | 5.1.0 | cpe:2.3:o:google:android:5.1.0:*:*:*:*:*:*:* | |
android | 6.0 | cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:* | |
android | 6.0.1 | cpe:2.3:o:google:android:6.0.1:*:*:*:*:*:*:* |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
23.6%