CVE-2006-5173

Severity Score

2.1

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allows local users to cause a denial of service (process crash), as demonstrated using a process that sets the Alignment Check flag (EFLAGS 0x40000), which triggers a SIGBUS in other processes that have an unaligned access.

El núcleo de Linux no guarda o restaura adecuadamente EFLAGS durante un cambio de contexto, o reinicia las banderas al crear nuevos hilos, lo cual permite a usuarios locales provocar una denegación de servicio (caída de proceso), como ha sido demostrado usando un proceso que establece la bandera Alignment Check (EFLAGS 0x40000), lo cual dispara un SIGBUS en otros procesos que tienen acceso no alineado.

*Credits: N/A

CVSS Scores

NISTv2 2.1

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2006-10-05 CVE Reserved
2006-10-17 CVE Published
2023-03-08 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (11)

URL	Tag	Source
http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=47a5c6fa0e204a2b63309c648bb2fde36836c826	X_refsource_confirm
http://secunia.com/advisories/23361	Broken Link
http://secunia.com/advisories/23384	Broken Link
http://secunia.com/advisories/23474	Broken Link
http://secunia.com/advisories/23593	Broken Link
http://secunia.com/advisories/25691	Broken Link
http://www.securityfocus.com/archive/1/471457	Mailing List
http://www.securityfocus.com/bid/21851	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://www.mandriva.com/security/advisories?name=MDKSA-2007:002	2023-11-07
http://www.novell.com/linux/security/advisories/2006_79_kernel.html	2023-11-07
http://www.ubuntu.com/usn/usn-395-1	2023-11-07

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"				>= 2.4.0 <= 2.6.19 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.4.0 <= 2.6.19"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				5.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "5.10"		-		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"				6.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "6.10"		-		Affected