CVE-2010-2955 Information disclosure in n/a
Local attackers can read sensitive kernel heap memory via an off-by-one error in wireless ioctl handling, requiring kernel patching.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2010-2955?
CVE-2010-2955 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 8 Sep 2010. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-193
Which versions are affected by CVE-2010-2955?
It affects 6 products.
Products include Canonical Ubuntu Linux, Linux kernel, Opensuse Opensuse, Suse Linux Enterprise Desktop, Suse Linux Enterprise Real Time Extension, Suse Linux Enterprise Server.
How do I fix CVE-2010-2955?
Apply the vendor's patch.
Is CVE-2010-2955 being exploited?
There is no known exploitation of CVE-2010-2955 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as GHSA-xj85-gxf6-hq98.