Improper access control in Linux kernel - CVE-2012-6689
Published: May 2, 2016 / Updated: January 20, 2023
Vulnerability identifier: #VU92471
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2012-6689
CWE-ID: CWE-284
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to improper access control error within the netlink_sendmsg() and netlink_add_usersock_entry() functions in net/netlink/af_netlink.c. A local user can execute arbitrary code.
How to mitigate CVE-2012-6689
Install update from vendor's repository.
Sources
- http://marc.info/?l=linux-netdev&m=134522422925986&w=2
- http://www.openwall.com/lists/oss-security/2015/02/22/10
- https://github.com/torvalds/linux/commit/20e1db19db5d6b9e4e83021595eab0dc8f107bef
- http://marc.info/?l=linux-netdev&m=134522422125983&w=2
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=20e1db19db5d6b9e4e83021595eab0dc8f107bef
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.5
- https://bugzilla.redhat.com/show_bug.cgi?id=848949
- http://www.securityfocus.com/bid/72739