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.
CVE-2010-2955
- No confirmed exploitation signals yet
A fix is available — apply it.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 33.7%
- KEV
- Not listed
Published
September 8, 2010
Last Modified
April 29, 2026
References (36)
- secalert@redhathttp://forums.grsecurity.net/viewtopic.php?f=3&t=2290
- secalert@redhathttp://git.kernel.org/?p=linux/kernel/git/linville/wireless-2.6.git%3Ba=commit%3Bh=42da2f948d949efd0111309f5827bf0298bcc9a4
- secalert@redhathttp://grsecurity.net/~spender/wireless-infoleak-fix2.patch
- secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.html
- secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
- secalert@redhathttp://lkml.org/lkml/2010/8/27/413
- secalert@redhathttp://lkml.org/lkml/2010/8/30/127
- secalert@redhathttp://lkml.org/lkml/2010/8/30/146
- secalert@redhathttp://lkml.org/lkml/2010/8/30/351
- secalert@redhathttp://secunia.com/advisories/41245
- secalert@redhathttp://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.36-rc3-next-20100831.bz2
- secalert@redhathttp://www.openwall.com/lists/oss-security/2010/08/31/1
- secalert@redhathttp://www.redhat.com/support/errata/RHSA-2010-0771.html
- secalert@redhathttp://www.redhat.com/support/errata/RHSA-2010-0842.html
- secalert@redhathttp://www.securityfocus.com/bid/42885
Vendor Advisories for CVE-2010-2955(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(8)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-image-2.6.31-112-imx51 (2.6.31-112.30) @ karmic | 2026-05-29 | ubuntu |
| ubuntu | linux-image-2.6.35-25-generic (2.6.35-25.44~lucid1) @ lucid | 2026-05-29 | ubuntu |
| ubuntu | linux-image-2.6.35-903-omap4 (2.6.35-903.22) @ maverick | 2026-05-29 | ubuntu |
| ubuntu | linux-image-2.6.31-608-imx51 (2.6.31-608.22) @ lucid | 2026-05-29 | ubuntu |
| ubuntu | linux-image-2.6.32-416-dove (2.6.32-416.33) @ maverick | 2026-05-29 | ubuntu |
| ubuntu | linux-image-2.6.35-23-server (2.6.35-23.41) @ maverick | 2026-05-29 | ubuntu |
| redhat | kernel-0:2.6.32-71.7.1.el6 | 2010-11-10 | redhat |
| redhat | kernel-rt-0:2.6.33.7-rt29.45.el5rt | 2010-10-14 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(7)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Red HatRHSA-2010:0771MODERATE2010-08-27
RHSA-2010:0771 — Moderate
- UbuntuUSN-1023-1LOW
Linux kernel vulnerabilities
- UbuntuUSN-1074-1LOW
Linux kernel vulnerabilities
- UbuntuUSN-1074-2LOW
Linux kernel vulnerabilities
- UbuntuUSN-1083-1LOW
Linux kernel vulnerabilities
- UbuntuUSN-1093-1LOW
Linux Kernel vulnerabilities (Marvell Dove)
- UbuntuUSN-1119-1LOW
Linux kernel (OMAP4) vulnerabilities
Data Freshness Timeline
(refreshed 7× in last 7d / 32× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-21 15:20 UTCEPSS rescore
- 2026-07-20 17:03 UTCEPSS rescore
- 2026-07-19 02:25 UTCEPSS rescore
- 2026-07-18 10:00 UTCEPSS rescore
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- 2026-07-06 02:19 UTCEPSS rescore
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- 2026-07-05 02:26 UTCEPSS rescore
- 2026-07-02 14:01 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-28 14:03 UTCEPSS rescore
- 2026-06-28 04:52 UTCEPSS rescore
- 2026-06-28 04:52 UTCEPSS rescore
- 2026-06-27 03:05 UTCEPSS rescore
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- 2026-06-25 13:46 UTCEPSS rescore
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- 2026-06-22 14:22 UTCEPSS rescore
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- 2026-06-21 14:53 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
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- 2026-06-19 19:22 UTCEPSS rescore
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- 2026-06-18 17:49 UTCEPSS rescore
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- 2026-06-12 23:08 UTCEPSS rescore
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- 2026-06-11 13:56 UTCEPSS rescore
- 2026-06-10 22:14 UTCEPSS rescore
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- 2026-06-08 14:13 UTCEPSS rescore
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- 2026-06-06 13:44 UTCEPSS rescore
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- 2026-06-01 13:49 UTCEPSS rescore
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- 2026-05-31 22:28 UTCEPSS rescore
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- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-29 10:25 UTCEG score recompute
- 2026-05-29 10:25 UTCVendor advisory
- 2026-05-29 10:25 UTCGHSA enrichment
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
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- 2026-05-26 07:16 UTCEPSS rescore
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- 2026-05-24 16:43 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
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- 2026-05-21 22:39 UTCEPSS rescore
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- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat
Frequently asked(4)
What is CVE-2010-2955?
When was CVE-2010-2955 disclosed?
Is CVE-2010-2955 actively exploited?
How do I remediate CVE-2010-2955?
Dependency Blast Radius
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