Information disclosure in Linux kernel - CVE-2011-2898
Published: May 25, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU44028
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2011-2898
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2011-2898
Install update from vendor's website.
Sources
- 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