Heap-based buffer overflow in WeeChat - CVE-2012-5854
Published: November 19, 2012 / Updated: November 11, 2020
Vulnerability identifier: #VU43325
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-5854
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Heap-based buffer overflow in WeeChat 0.3.6 through 0.3.9. A remote attacker can use crafted IRC colors that are not properly decoded. to trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
WeeChat
Gentoo Linux
Fedora
weechat
Gentoo Linux
Fedora
weechat
How to mitigate CVE-2012-5854
Install update from vendor's website.
weechat - addressed in versions 0.3.8-3.el6, 0.3.8-4.el6, 0.3.9.2-2.el6
External References
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092228.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092490.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092536.html
- http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00018.html
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00087.html
- http://osvdb.org/87279
- http://secunia.com/advisories/51377
- http://weechat.org/security/
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:136
- http://www.openwall.com/lists/oss-security/2012/11/12/2
- http://www.securityfocus.com/bid/56482
- https://savannah.nongnu.org/bugs/?37704
- https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0330