CVE-2010-2955

low
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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.

References

http://forums.grsecurity.net/viewtopic.php?f=3&t=2290

http://git.kernel.org/?p=linux/kernel/git/linville/wireless-2.6.git;a=commit;h=42da2f948d949efd0111309f5827bf0298bcc9a4

http://grsecurity.net/~spender/wireless-infoleak-fix2.patch

http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.html

http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html

http://lkml.org/lkml/2010/8/27/413

http://lkml.org/lkml/2010/8/30/127

http://lkml.org/lkml/2010/8/30/146

http://lkml.org/lkml/2010/8/30/351

http://secunia.com/advisories/41245

http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.36-rc3-next-20100831.bz2

http://www.openwall.com/lists/oss-security/2010/08/31/1

http://www.redhat.com/support/errata/RHSA-2010-0771.html

http://www.redhat.com/support/errata/RHSA-2010-0842.html

http://www.securityfocus.com/bid/42885

http://www.ubuntu.com/usn/USN-1000-1

http://www.vupen.com/english/advisories/2011/0298

https://bugzilla.redhat.com/show_bug.cgi?id=628434

Details

Source: MITRE

Published: 2010-09-08

Updated: 2020-08-14

Type: CWE-193

Risk Information

CVSS v2

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

Tenable Plugins

View all (16 total)

IDNameProductFamilySeverity
75550openSUSE Security Update : kernel (openSUSE-SU-2010:0655-1)NessusSuSE Local Security Checks
high
68175Oracle Linux 5 : Unbreakable Enterprise kernel (ELSA-2010-2011)NessusOracle Linux Local Security Checks
high
65101Ubuntu 10.04 LTS : linux-lts-backport-maverick vulnerabilities (USN-1083-1)NessusUbuntu Local Security Checks
critical
65103Ubuntu 10.04 LTS / 10.10 : linux-mvl-dove vulnerabilities (USN-1093-1)NessusUbuntu Local Security Checks
high
60893Scientific Linux Security Update : kernel on SL6.x i386/x86_64NessusScientific Linux Local Security Checks
high
59152SuSE 10 Security Update : the Linux kernel (ZYPP Patch Number 7164)NessusSuSE Local Security Checks
high
55077USN-1119-1 : linux-ti-omap4 vulnerabilitiesNessusUbuntu Local Security Checks
high
53669openSUSE Security Update : kernel (openSUSE-SU-2010:0895-2)NessusSuSE Local Security Checks
high
50925SuSE 11 Security Update : Linux kernel (SAT Patch Numbers 3358 / 3361 / 3362)NessusSuSE Local Security Checks
high
50924SuSE 11 / 11.1 Security Update : Linux kernel (SAT Patch Numbers 3144 / 3147 / 3148 / 3163 / 3171)NessusSuSE Local Security Checks
high
50629RHEL 6 : kernel (RHSA-2010:0842)NessusRed Hat Local Security Checks
high
50044Ubuntu 6.06 LTS / 8.04 LTS / 9.04 / 9.10 / 10.04 LTS / 10.10 : linux, linux-ec2, linux-source-2.6.15 vulnerabilities (USN-1000-1)NessusUbuntu Local Security Checks
critical
49874SuSE 10 Security Update : the Linux kernel (ZYPP Patch Number 7160)NessusSuSE Local Security Checks
high
49671openSUSE Security Update : kernel (openSUSE-SU-2010:0664-1)NessusSuSE Local Security Checks
critical
49657SuSE9 Security Update : the Linux kernel (YOU Patch Number 12646)NessusSuSE Local Security Checks
high
49161Fedora 13 : kernel-2.6.34.6-54.fc13 (2010-14235)NessusFedora Local Security Checks
high