CVE-2010-2955

kernel: wireless: fix 64K kernel heap content leak via ioctl

Severity Score

2.1

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función cfg80211_wext_giwessid en net/wireless/wext-compat.c en el kernel de Linux anterior a v2.6.36-rc3-next-20100831 no inicializa adecuadamente determinadas estructuras de miembros, lo que permite a usuarios locales aprovechar un error off-by-one en la función net/wireless/wext-core.c y obtener información potencialmente sensible desde la memoria dinámica (heap) del kernel, a través de vectores que involucran una llamada SIOCGIWESSID ioctl que especifica un gran tamaño de búfer.

*Credits: N/A

CVSS Scores

NISTv2 2.1

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2010-08-04 CVE Reserved
2010-09-08 CVE Published
2023-03-08 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-193: Off-by-one Error

CAPEC

References (19)

URL	Tag	Source
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	X_refsource_confirm
http://grsecurity.net/~spender/wireless-infoleak-fix2.patch	Broken Link
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.securityfocus.com/bid/42885	Third Party Advisory
http://www.vupen.com/english/advisories/2011/0298	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://lkml.org/lkml/2010/8/27/413	2023-02-13
http://lkml.org/lkml/2010/8/30/127	2023-02-13
http://lkml.org/lkml/2010/8/30/146	2023-02-13
http://lkml.org/lkml/2010/8/30/351	2023-02-13
http://www.openwall.com/lists/oss-security/2010/08/31/1	2023-02-13

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.html	2023-02-13
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html	2023-02-13
http://www.redhat.com/support/errata/RHSA-2010-0771.html	2023-02-13
http://www.redhat.com/support/errata/RHSA-2010-0842.html	2023-02-13
http://www.ubuntu.com/usn/USN-1000-1	2023-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=628434	2010-11-10
https://access.redhat.com/security/cve/CVE-2010-2955	2010-11-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 2.6.36 Search vendor "Linux" for product "Linux Kernel" and version " < 2.6.36"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.36 Search vendor "Linux" for product "Linux Kernel" and version "2.6.36"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.36 Search vendor "Linux" for product "Linux Kernel" and version "2.6.36"		rc1		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				2.6.36 Search vendor "Linux" for product "Linux Kernel" and version "2.6.36"		rc2		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				11.1 Search vendor "Opensuse" for product "Opensuse" and version "11.1"		-		Affected
Suse Search vendor "Suse"		Linux Enterprise Desktop Search vendor "Suse" for product "Linux Enterprise Desktop"				11 Search vendor "Suse" for product "Linux Enterprise Desktop" and version "11"		-		Affected
Suse Search vendor "Suse"		Linux Enterprise Real Time Extension Search vendor "Suse" for product "Linux Enterprise Real Time Extension"				11 Search vendor "Suse" for product "Linux Enterprise Real Time Extension" and version "11"		sp1		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				11 Search vendor "Suse" for product "Linux Enterprise Server" and version "11"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				6.06 Search vendor "Canonical" for product "Ubuntu Linux" and version "6.06"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				8.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "8.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				9.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "9.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				9.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "9.10"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				10.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "10.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				10.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "10.10"		-		Affected