SB2013042208 - Information disclosure in Linux kernel
Published: April 22, 2013 Updated: August 11, 2020
Security Bulletin ID
SB2013042208
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information disclosure (CVE-ID: CVE-2013-3227)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
The caif_seqpkt_recvmsg function in net/caif/caif_socket.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2d6fbfe733f35c6b355c216644e08e149c61b271
- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00016.html
- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- http://www.openwall.com/lists/oss-security/2013/04/14/3
- http://www.ubuntu.com/usn/USN-1837-1
- https://github.com/torvalds/linux/commit/2d6fbfe733f35c6b355c216644e08e149c61b271
- https://lkml.org/lkml/2013/4/14/107