CVE-2011-4110
2.1 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
5.4 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.1%
The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and βupdating a negative key into a fully instantiated key.β
Affected configurations
References
marc.info/?l=bugtraq&m=139447903326211&w=2
secunia.com/advisories/47754
www.openwall.com/lists/oss-security/2011/11/21/19
www.openwall.com/lists/oss-security/2011/11/22/5
www.openwall.com/lists/oss-security/2011/11/22/6
www.securityfocus.com/bid/50755
www.ubuntu.com/usn/USN-1324-1
www.ubuntu.com/usn/USN-1328-1
www.ubuntu.com/usn/USN-1344-1
bugzilla.redhat.com/show_bug.cgi?id=751297
lkml.org/lkml/2011/11/15/363
Related
2.1 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
5.4 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.1%