Format string error in Linux kernel - CVE-2013-2852
Published: June 7, 2013 / Updated: August 11, 2020
Vulnerability identifier: #VU42792
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2013-2852
CWE-ID: CWE-134
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Format string vulnerability in the b43_request_firmware function in drivers/net/wireless/b43/main.c in the Broadcom B43 wireless driver in the Linux kernel through 3.9.4 allows local users to gain privileges by leveraging root access and including format string specifiers in an fwpostfix modprobe parameter, leading to improper construction of an error message.
How to mitigate CVE-2013-2852
Install update from vendor's website.
Sources
- http://git.kernel.org/cgit/linux/kernel/git/linville/wireless.git/commit/?id=9538cbaab6e8b8046039b4b2eb6c9d614dc782bd
- http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00003.html
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
- http://rhn.redhat.com/errata/RHSA-2013-1051.html
- http://rhn.redhat.com/errata/RHSA-2013-1450.html
- http://www.debian.org/security/2013/dsa-2766
- http://www.openwall.com/lists/oss-security/2013/06/06/13
- http://www.ubuntu.com/usn/USN-1899-1
- http://www.ubuntu.com/usn/USN-1900-1
- http://www.ubuntu.com/usn/USN-1914-1
- http://www.ubuntu.com/usn/USN-1915-1
- http://www.ubuntu.com/usn/USN-1916-1
- http://www.ubuntu.com/usn/USN-1917-1
- http://www.ubuntu.com/usn/USN-1918-1
- http://www.ubuntu.com/usn/USN-1919-1
- http://www.ubuntu.com/usn/USN-1920-1
- http://www.ubuntu.com/usn/USN-1930-1
- https://bugzilla.redhat.com/show_bug.cgi?id=969518