CVE-2011-4099

capsh: does not chdir after chroot

Severity Score

5.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The capsh program in libcap before 2.22 does not change the current working directory when the --chroot option is specified, which allows local users to bypass the chroot restrictions via unspecified vectors.

El programa capsh en libcap anterior a 2.22 no cambia el directorio de trabajo actual cuando la opción --chroot es especificada, lo que permite a usuarios locales evadir las restricciones chroot a través de vectores no especificados.

The libcap packages provide a library and tools for getting and setting POSIX capabilities. It was found that capsh did not change into the new root when using the "--chroot" option. An application started via the "capsh --chroot" command could use this flaw to escape the chroot restrictions. This update also fixes the following bug: Previously, the libcap packages did not contain the capsh manual page. With this update, the capsh manual page is included.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Local

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-10-18 CVE Reserved
2011-12-07 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (4)

URL	Tag	Source
https://sites.google.com/site/fullycapable/release-notes-for-libcap/releasenotesfor222	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2011-1694.html	2014-02-10
https://bugzilla.redhat.com/show_bug.cgi?id=722694	2011-12-05
https://access.redhat.com/security/cve/CVE-2011-4099	2011-12-05

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				<= 2.21 Search vendor "Libcap" for product "Libcap" and version " <= 2.21"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.00 Search vendor "Libcap" for product "Libcap" and version "2.00"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.01 Search vendor "Libcap" for product "Libcap" and version "2.01"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.02 Search vendor "Libcap" for product "Libcap" and version "2.02"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.03 Search vendor "Libcap" for product "Libcap" and version "2.03"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.04 Search vendor "Libcap" for product "Libcap" and version "2.04"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.05 Search vendor "Libcap" for product "Libcap" and version "2.05"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.06 Search vendor "Libcap" for product "Libcap" and version "2.06"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.07 Search vendor "Libcap" for product "Libcap" and version "2.07"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.08 Search vendor "Libcap" for product "Libcap" and version "2.08"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.09 Search vendor "Libcap" for product "Libcap" and version "2.09"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.10 Search vendor "Libcap" for product "Libcap" and version "2.10"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.11 Search vendor "Libcap" for product "Libcap" and version "2.11"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.12 Search vendor "Libcap" for product "Libcap" and version "2.12"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.13 Search vendor "Libcap" for product "Libcap" and version "2.13"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.14 Search vendor "Libcap" for product "Libcap" and version "2.14"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.15 Search vendor "Libcap" for product "Libcap" and version "2.15"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.16 Search vendor "Libcap" for product "Libcap" and version "2.16"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.17 Search vendor "Libcap" for product "Libcap" and version "2.17"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.18 Search vendor "Libcap" for product "Libcap" and version "2.18"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.19 Search vendor "Libcap" for product "Libcap" and version "2.19"		-		Affected
Libcap Search vendor "Libcap"		Libcap Search vendor "Libcap" for product "Libcap"				2.20 Search vendor "Libcap" for product "Libcap" and version "2.20"		-		Affected