CVE-2011-1749

nfs-utils: mount.nfs fails to anticipate RLIMIT_FSIZE

Severity Score

7.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The nfs_addmntent function in support/nfs/nfs_mntent.c in the mount.nsf tool in nfs-utils before 1.2.4 attempts to append to the /etc/mtab file without first checking whether resource limits would interfere, which allows local users to corrupt this file via a process with a small RLIMIT_FSIZE value, a related issue to CVE-2011-1089.

La función nfs_addmntent en support/nfs/nfs_mntent.c en la herramienta mount.nsf en nfs-utils anterior a 1.2.4 intenta añadir al archivo /etc/mtab sin primero comprobar si los limites del recurso interfieren, lo que permite a usuarios locales corromper este archivo a través de un proceso con un valor RLIMIT_FSIZE pequeño, un problema relacionado con CVE-2011-1089.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

Partial

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-04-19 CVE Reserved
2014-02-26 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (6)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2011/04/25/5	Mailing List

URL	Date	SRC

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2012-0310.html	2014-03-10
http://sourceforge.net/projects/nfs/files/nfs-utils/1.2.4/Changelog-nfs-utils-1.2.4/download	2014-03-10

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2011-1534.html	2014-03-10
https://bugzilla.redhat.com/show_bug.cgi?id=697975	2012-02-21
https://access.redhat.com/security/cve/CVE-2011-1749	2012-02-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux-nfs Search vendor "Linux-nfs"		Nfs-utils Search vendor "Linux-nfs" for product "Nfs-utils"				<= 1.2.3 Search vendor "Linux-nfs" for product "Nfs-utils" and version " <= 1.2.3"		-		Affected
Linux-nfs Search vendor "Linux-nfs"		Nfs-utils Search vendor "Linux-nfs" for product "Nfs-utils"				1.2.0 Search vendor "Linux-nfs" for product "Nfs-utils" and version "1.2.0"		-		Affected
Linux-nfs Search vendor "Linux-nfs"		Nfs-utils Search vendor "Linux-nfs" for product "Nfs-utils"				1.2.1 Search vendor "Linux-nfs" for product "Nfs-utils" and version "1.2.1"		-		Affected
Linux-nfs Search vendor "Linux-nfs"		Nfs-utils Search vendor "Linux-nfs" for product "Nfs-utils"				1.2.2 Search vendor "Linux-nfs" for product "Nfs-utils" and version "1.2.2"		-		Affected