CVE-2012-1097

kernel: regset: Prevent null pointer reference on readonly regsets

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The regset (aka register set) feature in the Linux kernel before 3.2.10 does not properly handle the absence of .get and .set methods, which allows local users to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact via a (1) PTRACE_GETREGSET or (2) PTRACE_SETREGSET ptrace call.

El funcionalidad regset (también conocido como conjunto de registros) en el kernel de Linux antes de v3.2.10 no controla correctamente la ausencia de métodos ."set" y ".get", lo que permite a usuarios locales causar una denegación de servicio (desreferencia de puntero nulo) o, posiblemente, tener un impacto no especificado a través de (1) un PTRACE_GETREGSET o (2) una llamada ptrace PTRACE_SETREGSET.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2012-02-14 CVE Reserved
2012-03-28 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (13)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c8e252586f8d5de906385d8cf6385fee289a825e	X_refsource_confirm
http://secunia.com/advisories/48842	Broken Link
http://secunia.com/advisories/48898	Broken Link
http://secunia.com/advisories/48964	Broken Link

URL	Date	SRC

URL	Date	SRC
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10	2023-02-13
http://www.openwall.com/lists/oss-security/2012/03/05/1	2023-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=799209	2012-06-26
https://github.com/torvalds/linux/commit/c8e252586f8d5de906385d8cf6385fee289a825e	2023-02-13

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html	2023-02-13
http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2012-0481.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2012-0531.html	2023-02-13
https://access.redhat.com/security/cve/CVE-2012-1097	2012-06-26

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"				< 3.0.24 Search vendor "Linux" for product "Linux Kernel" and version " < 3.0.24"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.1 < 3.2.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.1 < 3.2.10"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				4.0 Search vendor "Redhat" for product "Enterprise Linux" and version "4.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Mrg Search vendor "Redhat" for product "Enterprise Mrg"				2.0 Search vendor "Redhat" for product "Enterprise Mrg" and version "2.0"		-		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"		sp1		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"		sp2		Affected
Suse Search vendor "Suse"		Linux Enterprise High Availability Extension Search vendor "Suse" for product "Linux Enterprise High Availability Extension"				11 Search vendor "Suse" for product "Linux Enterprise High Availability Extension" and version "11"		sp1		Affected
Suse Search vendor "Suse"		Linux Enterprise High Availability Extension Search vendor "Suse" for product "Linux Enterprise High Availability Extension"				11 Search vendor "Suse" for product "Linux Enterprise High Availability Extension" and version "11"		sp2		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"		sp1, vmware		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"		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"		sp2, vmware		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"		sp2		Affected