GNU Bash 4.2 lib/sh/eaccess.c memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in GNU Bash 4.2 and classified as problematic. This vulnerability affects unknown code in the library lib/sh/eaccess.c. Performing a manipulation results in memory corruption. This vulnerability is identified as CVE-2012-3410. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in GNU Bash 4.2. This affects an unknown part in the library lib/sh/eaccess.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Stack-based buffer overflow in lib/sh/eaccess.c in GNU Bash before 4.2 patch 33 might allow local users to bypass intended restricted shell access via a long filename in /dev/fd, which is not properly handled when expanding the /dev/fd prefix.

The weakness was released 08/27/2012 by Henri Salo (Website). It is possible to read the advisory at bugs.debian.org. This vulnerability is uniquely identified as CVE-2012-3410 since 06/14/2012. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 74685 (openSUSE Security Update : bash (openSUSE-SU-2012:0898-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 167142 (SUSE Enterprise Linux Security Update for bash (SUSE-SU-2014:1214-1) (Shellshock)).

Upgrading to version 4.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (77551), Tenable (74685), SecurityFocus (BID 54937†), Secunia (SA51086†) and Vulnerability Center (SBV-36118†). Entry connected to this vulnerability is available at VDB-90082. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 74685
Nessus Name: openSUSE Security Update : bash (openSUSE-SU-2012:0898-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 831716
OpenVAS Name: Mandriva Update for bash MDVSA-2012:128 (bash)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Bash 4.2

Timelineinfo

06/14/2012 🔍
08/09/2012 +56 days 🔍
08/27/2012 +18 days 🔍
08/27/2012 +0 days 🔍
08/27/2012 +0 days 🔍
09/12/2012 +16 days 🔍
10/22/2012 +40 days 🔍
06/13/2014 +599 days 🔍
03/23/2015 +283 days 🔍
12/12/2021 +2456 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: bugs.debian.org
Researcher: Henri Salo
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-3410 (🔍)
GCVE (CVE): GCVE-0-2012-3410
GCVE (VulDB): GCVE-100-61911

OVAL: 🔍

X-Force: 77551
SecurityFocus: 54937 - GNU Bash Remote Stack Based Buffer Overflow Vulnerability
Secunia: 51086 - Gentoo update for bash, Less Critical
Vulnerability Center: 36118 - GNU Bash Before 4.2 Patch 33 lib/sh/eaccess.c Local Stack-Based Buffer overflow Vulnerability, Low

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/12/2021 15:52
Changes: 03/23/2015 16:50 (65), 04/16/2017 11:48 (14), 12/12/2021 15:52 (3)
Complete: 🔍
Cache ID: 216:CE1:103

Be aware that VulDB is the high quality source for vulnerability data.

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