SB2015042115 - Improper input validation in Linux kernel llc
Published: April 21, 2015
Security Bulletin ID
SB2015042115
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper input validation (CVE-ID: CVE-2015-2041)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to read and manipulate data.
The vulnerability exists due to improper input validation error within the sizeof() function in net/llc/sysctl_net_llc.c. A local user can read and manipulate data.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6b8d9117ccb4f81b1244aafa7bc70ef8fa45fc49
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html
- http://www.debian.org/security/2015/dsa-3237
- http://www.openwall.com/lists/oss-security/2015/02/20/19
- http://www.securityfocus.com/bid/72729
- http://www.ubuntu.com/usn/USN-2560-1
- http://www.ubuntu.com/usn/USN-2561-1
- http://www.ubuntu.com/usn/USN-2562-1
- http://www.ubuntu.com/usn/USN-2563-1
- http://www.ubuntu.com/usn/USN-2564-1
- http://www.ubuntu.com/usn/USN-2565-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1195350
- https://github.com/torvalds/linux/commit/6b8d9117ccb4f81b1244aafa7bc70ef8fa45fc49