Input validation error in Linux kernel - CVE-2012-2669
Published: December 27, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43228
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-2669
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to manipulate data.
The main function in tools/hv/hv_kvp_daemon.c in hypervkvpd, as distributed in the Linux kernel before 3.4.5, does not validate the origin of Netlink messages, which allows local users to spoof Netlink communication via a crafted connector message.
Affected software
Linux kernel
Ubuntu
linux (Ubuntu package)
linux-lts-backport-oneiric (Ubuntu package)
Ubuntu
linux (Ubuntu package)
linux-lts-backport-oneiric (Ubuntu package)
How to mitigate CVE-2012-2669
Install update from vendor's website.
linux (Ubuntu package) - addressed in versions 3.0.0-31.48, 3.2.0-29.46
linux-lts-backport-oneiric (Ubuntu package) - update to 3.0.0-31.48~lucid1
linux-lts-backport-oneiric (Ubuntu package) - update to 3.0.0-31.48~lucid1
External References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bcc2c9c3fff859e0eb019fe6fec26f9b8eba795c
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00042.html
- http://openwall.com/lists/oss-security/2012/06/06/12
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5
- http://www.openwall.com/lists/oss-security/2012/11/27/12
- https://bugzilla.novell.com/show_bug.cgi?id=761200
- https://github.com/torvalds/linux/commit/bcc2c9c3fff859e0eb019fe6fec26f9b8eba795c