CVE-2009-2703

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-09-08 · updated 2026-06-16
Weakness: CWE-119

Description

libpurple/protocols/irc/msgs.c in the IRC protocol plugin in libpurple in Pidgin before 2.6.2 allows remote IRC servers to cause a denial of service (NULL pointer dereference and application crash) via a TOPIC message that lacks a topic string.

Affected products

Pidgin Libpurple: all versions
Pidgin: through 2.6.1; 2.0.0, 2.0.1, 2.0.2, 2.1.0, 2.1.1, 2.2.0 (+28)

References

http://developer.pidgin.im/viewmtn/revision/info/ad2c6ee53ec9122b25aeb1f918db53be69bdeac3
http://secunia.com/advisories/36601
http://www.pidgin.im/news/security/index.php?id=40
http://www.securityfocus.com/bid/36277
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11379
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6435
http://developer.pidgin.im/viewmtn/revision/info/ad2c6ee53ec9122b25aeb1f918db53be69bdeac3
http://secunia.com/advisories/36601
http://www.pidgin.im/news/security/index.php?id=40
http://www.securityfocus.com/bid/36277
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11379
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6435

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