CVE-2011-4077

kernel: xfs: potential buffer overflow in xfs_readlink()

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Buffer overflow in the xfs_readlink function in fs/xfs/xfs_vnodeops.c in XFS in the Linux kernel 2.6, when CONFIG_XFS_DEBUG is disabled, allows local users to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via an XFS image containing a symbolic link with a long pathname.

Un desbordamiento de búfer en la función xfs_readlink en fs/xfs/xfs_vnodeops.c en XFS en el kernel de Linux v2.6, cuando CONFIG_XFS_DEBUG está desactivado, permite a usuarios locales provocar una denegación de servicio (corrupción de memoria y caída del sistema) y posiblemente ejecutar código de su elección a través de una imagen XFS que contiene un enlace simbólico con una ruta demasiado larga.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Attack Vector

Local

Attack Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-10-18 CVE Reserved
2011-12-03 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (8)

URL	Tag	Source
http://secunia.com/advisories/48964	Broken Link

URL	Date	SRC
http://xorl.wordpress.com/2011/12/07/cve-2011-4077-linux-kernel-xfs-readlink-memory-corruption	2024-08-06

URL	Date	SRC
http://oss.sgi.com/archives/xfs/2011-10/msg00345.html	2023-07-27
http://www.openwall.com/lists/oss-security/2011/10/26/1	2023-07-27
http://www.openwall.com/lists/oss-security/2011/10/26/3	2023-07-27
https://bugzilla.redhat.com/show_bug.cgi?id=749156	2012-03-06

URL	Date	SRC
http://marc.info/?l=bugtraq&m=139447903326211&w=2	2023-07-27
https://access.redhat.com/security/cve/CVE-2011-4077	2012-03-06

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"				>= 2.6.12 < 3.0.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.12 < 3.0.11"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.1 < 3.1.5 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.1 < 3.1.5"		-		Affected