CVE-2014-7283

kernel: xfs: directory hash ordering denial of service

Severity Score

4.9

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The xfs_da3_fixhashpath function in fs/xfs/xfs_da_btree.c in the xfs implementation in the Linux kernel before 3.14.2 does not properly compare btree hash values, which allows local users to cause a denial of service (filesystem corruption, and OOPS or panic) via operations on directories that have hash collisions, as demonstrated by rmdir operations.

La función xfs_da3_fixhashpath en fs/xfs/xfs_da_btree.c en la implementación xfs en el kernel de Linux anterior a 3.14.2 no compara debidamente los valores de hashes btree, lo que permite a usuarios locales causar una denegación de servicio (corrupción del sistema de ficheros y OOPS o pánico) a través de operaciones sobre directorios que tienen colisiones de hashes, tal y como fue demostrado por operaciones rmdir.

A denial of service flaw was found in the way the Linux kernel's XFS file system implementation ordered directory hashes under certain conditions. A local attacker could use this flaw to corrupt the file system by creating directories with colliding hash values, potentially resulting in a system crash.

*Credits: N/A

CVSS Scores

NISTv2 4.9

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

2014-10-01 CVE Reserved
2014-10-13 CVE Published
2023-11-08 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-399: Resource Management Errors

CAPEC

References (9)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c88547a8119e3b581318ab65e9b72f27f23e641d	X_refsource_confirm
http://www.openwall.com/lists/oss-security/2014/10/01/29	Mailing List
http://www.securityfocus.com/bid/70261	Third Party Advisory

URL	Date	SRC
http://marc.info/?l=linux-xfs&m=139590613002926&w=2	2024-08-06
https://bugzilla.redhat.com/show_bug.cgi?id=1148777	2024-08-06
https://github.com/torvalds/linux/commit/c88547a8119e3b581318ab65e9b72f27f23e641d	2024-08-06

URL	Date	SRC

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2014-1943.html	2023-11-07
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.2	2023-11-07
https://access.redhat.com/security/cve/CVE-2014-7283	2014-12-02

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"				< 3.14.2 Search vendor "Linux" for product "Linux Kernel" and version " < 3.14.2"		-		Affected
Redhat Search vendor "Redhat"		Mrg Realtime Search vendor "Redhat" for product "Mrg Realtime"				2.0 Search vendor "Redhat" for product "Mrg Realtime" and version "2.0"		-		Affected