GNU Bash up to 3.2.48 Nested Flow Control memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in GNU Bash and classified as critical. This vulnerability affects unknown code of the component Nested Flow Control Handler. Executing a manipulation can lead to memory corruption. This vulnerability appears as CVE-2014-7187. In addition, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in GNU Bash. This vulnerability affects an unknown code of the component Nested Flow Control Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 09/26/2014 by Todd Sabin (oss-sec). The advisory is shared for download at openwall.com. This vulnerability was named CVE-2014-7187 since 09/25/2014. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 78362 (Amazon Linux AMI : bash (ALAS-2014-419)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350825 (Amazon Linux Security Advisory for bash: AL2012-2014-006 (ShellShock)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (96238), Exploit-DB (34860), Tenable (78362), SecurityFocus (BID 70154†) and Secunia (SA61479†). Additional details are provided at bugzilla.redhat.com. See VDB-67707, VDB-68866, VDB-68867 and VDB-71528 for similar entries. Once again VulDB remains the best source for vulnerability data.

Affected

  • Red Hat Enterprise Linux 5/6

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 78362
Nessus Name: Amazon Linux AMI : bash (ALAS-2014-419)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: ALAS-2014-419
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/24/2014 🔍
09/25/2014 +1 days 🔍
09/25/2014 +0 days 🔍
09/26/2014 +1 days 🔍
09/28/2014 +2 days 🔍
09/29/2014 +1 days 🔍
09/30/2014 +1 days 🔍
10/12/2014 +12 days 🔍
11/30/2024 +3702 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: USN-2364-1
Researcher: Todd Sabin
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-7187 (🔍)
GCVE (CVE): GCVE-0-2014-7187
GCVE (VulDB): GCVE-100-67708

OVAL: 🔍
IAVM: 🔍

X-Force: 96238 - GNU Bash nested flow control constructs code execution, Medium Risk
SecurityFocus: 70154 - GNU Bash CVE-2014-7187 Local Memory Corruption Vulnerability
Secunia: 61479 - SUSE update for bash, Highly Critical

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/29/2014 09:55
Updated: 11/30/2024 11:00
Changes: 09/29/2014 09:55 (78), 03/08/2019 21:05 (10), 02/21/2022 08:17 (4), 02/21/2022 08:20 (1), 11/30/2024 11:00 (23)
Complete: 🔍
Cache ID: 216:5EB:103

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