CVE-2010-2955: canonical ubuntu_linux Off-by-one Error
Vulnerability summary
CVE-2010-2955 is a low (CVSS 2.1) Off-by-one Error vulnerability in canonical ubuntu_linux. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35.8% of scored vulnerabilities.
Not severe (CVSS 2.1, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 1Timeline
- 08-09-2010PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.41% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Ubuntu9 products
- linux< 3.11.0-12.19
- linux-flo< 3.4.0-1.3
- linux-goldfish< 3.4.0-1.9
- linux-grouper< 3.1.10-8.28
- linux-lts-utopic< 3.16.0-25.33~14.04.2
Suse3 products
Canonical1 product
- ubuntu_linuxEOL6.06 | 8.04 | 9.04 | 9.10 | 10.04 | 10.10
Linux1 product
- linux_kernel< 2.6.36 | 2.6.36 | 2.6.36:rc1 | 2.6.36:rc2
Opensuse1 product
- opensuseEOL11.1
5 vendors · 15 products
References
26 links- www.redhat.com/support/errata/RHSA-2010-0771.htmlVendor AdvisoryX Refsource REDHATThird Party Advisory
- git.kernel.orgX Refsource CONFIRM
- lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- www.redhat.com/support/errata/RHSA-2010-0842.htmlVendor AdvisoryX Refsource REDHATThird Party Advisory
- www.openwall.com/lists/oss-security/2010/08/31/1Mailing ListX Refsource MLISTPatchThird Party Advisory
Show all 26 references
- www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.36-rc3-next-20100831.bz2X Refsource CONFIRMBroken Link
- lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory