CVE-2013-2852 Memory corruption in n/a
Local attackers with root access can exploit a format string vulnerability in the Broadcom B43 wireless driver to escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-2852?
CVE-2013-2852 is a medium-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 7 Jun 2013. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-134
Which versions are affected by CVE-2013-2852?
It affects 3 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel.
How do I fix CVE-2013-2852?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2013-2852 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2013-2852 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2013-2852, GHSA-jrj6-vfj7-prcf.