#VU33911 Input validation error in Pidgin - CVE-2013-0273

Vulnerability identifier: #VU33911

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-0273

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 perform service disruption.

sametime.c in the Sametime protocol plugin in libpurple in Pidgin before 2.10.7 does not properly terminate long user IDs, which allows remote servers to cause a denial of service (application crash) via a crafted packet.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Pidgin: 2.10.0 - 2.10.6

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External links
https://hg.pidgin.im/pidgin/main/rev/c31cf8de31cd
https://lists.opensuse.org/opensuse-security-announce/2013-03/msg00003.html
https://lists.opensuse.org/opensuse-security-announce/2013-03/msg00006.html
https://lists.opensuse.org/opensuse-security-announce/2013-03/msg00007.html
https://www.pidgin.im/news/security/?id=67
https://www.ubuntu.com/usn/USN-1746-1
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18340

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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.