Stack-based buffer overflow in Bash - CVE-2012-3410
Published: August 28, 2012 / Updated: July 28, 2020
Vulnerability identifier: #VU32768
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-3410
CWE-ID: CWE-121
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: GNU
Affected software:
Bash
Bash
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing a long filename in /dev/fd, which is not properly handled when expanding the /dev/fd prefix. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2012-3410
Update to version 4.2.
Sources
- ftp://ftp.gnu.org/pub/gnu/bash/bash-4.2-patches/bash42-033
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=681278
- http://secunia.com/advisories/51086
- http://security.gentoo.org/glsa/glsa-201210-05.xml
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:128
- http://www.openwall.com/lists/oss-security/2012/07/11/11
- http://www.openwall.com/lists/oss-security/2012/07/11/22
- http://www.openwall.com/lists/oss-security/2012/07/12/4
- http://www.securityfocus.com/bid/54937
- https://exchange.xforce.ibmcloud.com/vulnerabilities/77551
- https://hermes.opensuse.org/messages/15227834