SB2012052501 - Information disclosure in Linux kernel
Published: May 25, 2012 Updated: August 11, 2020
Security Bulletin ID
SB2012052501
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-2011-2898)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
net/packet/af_packet.c in the Linux kernel before 2.6.39.3 does not properly restrict user-space access to certain packet data structures associated with VLAN Tag Control Information, which allows local users to obtain potentially sensitive information via a crafted application.
Remediation
Install update from vendor's website.
References
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.3
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=13fcb7bd322164c67926ffe272846d4860196dc6
- http://www.openwall.com/lists/oss-security/2011/08/03/7
- https://bugzilla.redhat.com/show_bug.cgi?id=728023
- https://github.com/torvalds/linux/commit/13fcb7bd322164c67926ffe272846d4860196dc6