CVE-2010-2955 Information disclosure in n/a

Low 2.1 Published Updated

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.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as GHSA-xj85-gxf6-hq98.

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