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.
Key facts
- CVSS score
- 2.1 (v2.0)
- Severity
- LOW
- CVSS vector
AV:L/AC:L/Au:N/C:P/I:N/A:N- Weakness (CWE)
- CWE-193
- EPSS score
- 0.4% (36th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2010-2959)
- Published
- September 8, 2010
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2010-2959 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- linux / linux kernel
- linux / linux kernel
- linux / linux kernel
- 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(Third Party Advisory)
- 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(Broken Link)
- http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.html(Mailing List, Third Party Advisory)
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html(Mailing List, Third Party Advisory)
- http://lkml.org/lkml/2010/8/27/413(Mailing List, Patch, Third Party Advisory)
- http://lkml.org/lkml/2010/8/30/127(Mailing List, Patch, Third Party Advisory)
- http://lkml.org/lkml/2010/8/30/146(Mailing List, Patch, Third Party Advisory)
- http://lkml.org/lkml/2010/8/30/351(Mailing List, Patch, Third Party Advisory)
- http://secunia.com/advisories/41245(Third Party Advisory)
- http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.36-rc3-next-20100831.bz2(Broken Link)
- http://www.openwall.com/lists/oss-security/2010/08/31/1(Mailing List, Patch, Third Party Advisory)
- http://www.redhat.com/support/errata/RHSA-2010-0771.html(Third Party Advisory)
- http://www.redhat.com/support/errata/RHSA-2010-0842.html(Third Party Advisory)
- http://www.securityfocus.com/bid/42885(Third Party Advisory, VDB Entry)
- http://www.ubuntu.com/usn/USN-1000-1(Third Party Advisory)
- http://www.vupen.com/english/advisories/2011/0298(Third Party Advisory)
- https://bugzilla.redhat.com/show_bug.cgi?id=628434(Issue Tracking, Third Party Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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