CVE-2010-2955
The cfg80211_wext_giwessid function in net/wireless/wext-compat.c in the Linux kernel before 2.6.36-rc3-next-20100831 does not properly initialize certain structure members, which allows local users to leverage an off-by-one error in the ioctl_standard_iw_point function in net/wireless/wext-core.c, and obtain potentially sensitive information from kernel heap memory, via vectors involving an SIOCGIWESSID ioctl call that specifies a large buffer size.
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 35% of CVEs (scores of 2026-10-31)
- CWE
- CWE-193
- Published
- Modified
- Record from
- the NVD, synced
Affected
- canonical:ubuntu_linux
- linux:linux_kernel
- opensuse:opensuse
- suse:linux_enterprise_desktop
- suse:linux_enterprise_real_time_extension
- suse:linux_enterprise_server
References
- http://forums.grsecurity.net/viewtopic.php?f=3&t=2290
- http://git.kernel.org/?p=linux/kernel/git/linville/wireless-2.6.git%3Ba=commit%3Bh=42da2f948d949efd0111309f5827bf0298bcc9a4
- http://grsecurity.net/~spender/wireless-infoleak-fix2.patch
- http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html