CVE-2013-2852: Canonical Ubuntu Linux

Medium severity, CVSS 6.9. EPSS: 1% chance of exploitation in the next 30 days.

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.

Affected products

• Canonical Ubuntu Linux: version 10.04 only; version 12.04 only; version 12.10 only; version 13.04 only
• Debian Debian Linux: version 6.0 only
• Linux Linux Kernel: from 2.6.12, before 3.0.83 (fixed in 3.0.83); from 3.1, before 3.2.47 (fixed in 3.2.47); from 3.3, before 3.4.50 (fixed in 3.4.50); from 3.5, before 3.9.7 (fixed in 3.9.7)

Published 2013-06-07. Last modified 2026-06-16.