#VU42070 Input validation error in Pidgin - CVE-2013-6486

Vulnerability identifier: #VU42070

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2013-6486

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Pidgin
Client/Desktop applications / Messaging software

Vendor: pidgin.im

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

gtkutils.c in Pidgin before 2.10.8 on Windows allows user-assisted remote attackers to execute arbitrary programs via a message containing a file: URL that is improperly handled during construction of an explorer.exe command. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-3185.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Pidgin: 2.0.0 - 2.10.6

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External links
https://hg.pidgin.im/pidgin/main/rev/b2571530fa8b
https://lists.opensuse.org/opensuse-updates/2014-02/msg00039.html
https://lists.opensuse.org/opensuse-updates/2014-03/msg00005.html
https://pidgin.im/news/security/?id=81
https://www.securityfocus.com/bid/65189

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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.