#VU42058 Input validation error in Pidgin - CVE-2013-6487

Vulnerability identifier: #VU42058

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-2013-6487

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 read and manipulate data.

Integer overflow in libpurple/protocols/gg/lib/http.c in the Gadu-Gadu (gg) parser in Pidgin before 2.10.8 allows remote attackers to have an unspecified impact via a large Content-Length value, which triggers a buffer overflow.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Pidgin: 2.0.0 - 2.10.6

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External links
https://advisories.mageia.org/MGASA-2014-0074.html
https://hg.pidgin.im/pidgin/main/rev/ec15aa187aa0
https://libgadu.net/releases/1.11.3.html
https://lists.fedoraproject.org/pipermail/package-announce/2014-February/128277.html
https://lists.opensuse.org/opensuse-updates/2014-02/msg00039.html
https://lists.opensuse.org/opensuse-updates/2014-03/msg00005.html
https://vrt-blog.snort.org/2014/01/vrt-2013-1001-cve-2013-6487-buffer.html
https://www.debian.org/security/2014/dsa-2852
https://www.debian.org/security/2014/dsa-2859
https://www.mandriva.com/security/advisories?name=MDVSA-2014:039
https://www.pidgin.im/news/security/?id=82
https://www.securityfocus.com/bid/65188
https://www.ubuntu.com/usn/USN-2100-1
https://www.ubuntu.com/usn/USN-2101-1
https://rhn.redhat.com/errata/RHSA-2014-0139.html
https://security.gentoo.org/glsa/201508-02

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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.