CVE-2010-2955 — Off-by-one Error in Kernel

CWE-193 — Off-by-one Error12 documents7 sources
Severity
2.1LOWNVD
EPSS
0.1%
top 73.57%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Linux KernelCanonical Ubuntu LinuxOpensuse+3 more
Timeline
PublishedSep 8
Latest updateMay 13

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 vector

AV:L/AC:L/C:P/I:N/A:NExploitability: 3.9 | Impact: 2.9

Affected Packages6 packages

▶NVDlinux/linux_kernel< 2.6.36+1
▶Ubuntulinux/linux_kernel< 3.11.0-12.19

Also affects: Ubuntu Linux 10.04, 10.10, 6.06, 8.04, 9.04, 9.10

Patches

Patch: lkml.org ↗Patch: lkml.org ↗Patch: lkml.org ↗

🔴Vulnerability Details

3
GHSA
GHSA-xj85-gxf6-hq98: The cfg80211_wext_giwessid function in net/wireless/wext-compat↗2022-05-13
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CVEList
CVE-2010-2955: The cfg80211_wext_giwessid function in net/wireless/wext-compat↗2010-09-08
▶
OSV
CVE-2010-2955: The cfg80211_wext_giwessid function in net/wireless/wext-compat↗2010-09-08
▶

📋Vendor Advisories

7
Ubuntu
Linux kernel (OMAP4) vulnerabilities↗2011-04-20
▶
Ubuntu
Linux Kernel vulnerabilities (Marvell Dove)↗2011-03-25
▶
Ubuntu
Linux kernel vulnerabilities↗2011-03-03
▶
Ubuntu
Linux kernel vulnerabilities↗2011-02-28
▶
Ubuntu
Linux kernel vulnerabilities↗2011-02-25
▶

💬Community

1
Bugzilla
CVE-2010-2955 kernel: wireless: fix 64K kernel heap content leak via ioctl↗2010-08-30
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CVE-2010-2955 — Off-by-one Error in Linux Kernel | cvebase