VulnerabilityModified
CVE-2011-4110
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 "updating a negative key into a…
LOW 2.1EPSS 0.47%
Does this matter?
Lower severity and a low EPSS score (0.47%). Track it; it rarely justifies an emergency change on its own.
Description
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 "updating a negative key into a fully instantiated key."
- CVSS 2.0
- 2.1 LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 0.47% probability · 39th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- http://marc.info/?l=bugtraq&m=139447903326211&w=2
- http://secunia.com/advisories/47754
- http://www.openwall.com/lists/oss-security/2011/11/21/19
- http://www.openwall.com/lists/oss-security/2011/11/22/5
- http://www.openwall.com/lists/oss-security/2011/11/22/6
- http://www.securityfocus.com/bid/50755
- http://www.ubuntu.com/usn/USN-1324-1
- http://www.ubuntu.com/usn/USN-1328-1
- http://www.ubuntu.com/usn/USN-1344-1
- https://bugzilla.redhat.com/show_bug.cgi?id=751297Patch
- https://lkml.org/lkml/2011/11/15/363Exploit
- http://marc.info/?l=bugtraq&m=139447903326211&w=2
- http://secunia.com/advisories/47754
- http://www.openwall.com/lists/oss-security/2011/11/21/19
- http://www.openwall.com/lists/oss-security/2011/11/22/5
- http://www.openwall.com/lists/oss-security/2011/11/22/6
- http://www.securityfocus.com/bid/50755
- http://www.ubuntu.com/usn/USN-1324-1
- http://www.ubuntu.com/usn/USN-1328-1
- http://www.ubuntu.com/usn/USN-1344-1
- https://bugzilla.redhat.com/show_bug.cgi?id=751297Patch
- https://lkml.org/lkml/2011/11/15/363Exploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.