#VU43325 Heap-based buffer overflow in WeeChat - CVE-2012-5854
Vulnerability identifier: #VU43325
Vulnerability risk: Medium
CVSSv4.0: 2.7 [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/E:U/U:Green]
CVE-ID: CVE-2012-5854
CWE-ID:
CWE-122
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
WeeChat
Client/Desktop applications /
Messaging software
Vendor: WeeChat.org
Description
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.
Mitigation
Install update from vendor's website.
Vulnerable software versions
WeeChat: 0.3.6 - 0.3.9
External links
https://lists.fedoraproject.org/pipermail/package-announce/2012-November/092228.html
https://lists.fedoraproject.org/pipermail/package-announce/2012-November/092490.html
https://lists.fedoraproject.org/pipermail/package-announce/2012-November/092536.html
https://lists.opensuse.org/opensuse-security-announce/2013-01/msg00018.html
https://lists.opensuse.org/opensuse-updates/2012-11/msg00087.html
https://osvdb.org/87279
https://secunia.com/advisories/51377
https://weechat.org/security/
https://www.mandriva.com/security/advisories?name=MDVSA-2013:136
https://www.openwall.com/lists/oss-security/2012/11/12/2
https://www.securityfocus.com/bid/56482
https://savannah.nongnu.org/bugs/?37704
https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0330
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
