CVE-2010-4528

Severity: medium (CVSS 4.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-01-07 · updated 2026-06-16
Weakness: CWE-20

Description

directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before 2.7.9 allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a short p2pv2 packet in a DirectConnect (aka direct connection) session.

Affected products

Pidgin Libpurple: 2.7.6, 2.7.7, 2.7.8
Pidgin: through 2.7.8; 2.0.0, 2.0.1, 2.0.2, 2.1.0, 2.1.1, 2.2.0 (+32)

References

http://developer.pidgin.im/viewmtn/revision/diff/e76f4ad4ef2f10588195a0eedc7a08f82062f79c/with/aaa07bde3c51d3684391ae6ed86b6dbaeab5d031/libpurple/protocols/msn/directconn.c
http://developer.pidgin.im/viewmtn/revision/info/aaa07bde3c51d3684391ae6ed86b6dbaeab5d031
http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052862.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052905.html
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00003.html
http://pidgin.im/pipermail/support/2010-December/009251.html
http://secunia.com/advisories/42732
http://secunia.com/advisories/42824
http://secunia.com/advisories/42877
http://www.mandriva.com/security/advisories?name=MDVSA-2010:259
http://www.openwall.com/lists/oss-security/2010/12/27/1
http://www.openwall.com/lists/oss-security/2010/12/31/5

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