CVE-2016-2053
4.7 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:N/I:N/A:C
4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
5.1 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
21.8%
The asn1_ber_decoder function in lib/asn1_decoder.c in the Linux kernel before 4.3 allows attackers to cause a denial of service (panic) via an ASN.1 BER file that lacks a public key, leading to mishandling by the public_key_verify_signature function in crypto/asymmetric_keys/public_key.c.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| linux:linux_kernel | linux linux kernel | lt | 4.3 |
References
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0d62e9dd6da45bbf0f33a8617afc5fe774c8f45f
lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html
lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00017.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00023.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
rhn.redhat.com/errata/RHSA-2016-2574.html
rhn.redhat.com/errata/RHSA-2016-2584.html
www.openwall.com/lists/oss-security/2016/01/25/4
www.securitytracker.com/id/1036763
bugzilla.redhat.com/show_bug.cgi?id=1300237
github.com/torvalds/linux/commit/0d62e9dd6da45bbf0f33a8617afc5fe774c8f45f
Related
4.7 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:N/I:N/A:C
4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
5.1 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
21.8%