Advisories MDVSA-2009:230: pidgin

[paul]

Security vulnerabilities has been identified and fixed in pidgin:

 

The msn_slplink_process_msg function in

libpurple/protocols/msn/slplink.c in libpurple, as used in Pidgin

(formerly Gaim) before 2.5.9 and Adium 1.3.5 and earlier, allows

remote attackers to execute arbitrary code or cause a denial of service

(memory corruption and application crash) by sending multiple crafted

SLP (aka MSNSLP) messages to trigger an overwrite of an arbitrary

memory location. NOTE: this issue reportedly exists because of an

incomplete fix for CVE-2009-1376 (CVE-2009-2694).

 

Unspecified vulnerability in Pidgin 2.6.0 allows remote attackers

to cause a denial of service (crash) via a link in a Yahoo IM

(CVE-2009-3025)

 

protocols/jabber/auth.c in libpurple in Pidgin 2.6.0, and possibly

other versions, does not follow the require TLS/SSL preference

when connecting to older Jabber servers that do not follow the XMPP

specification, which causes libpurple to connect to the server without

the expected encryption and allows remote attackers to sniff sessions

(CVE-2009-3026).

 

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 (CVE-2009-2703).

 

The msn_slp_sip_recv function in libpurple/protocols/msn/slp.c in the

MSN protocol plugin in libpurple in Pidgin before 2.6.2 allows remote

attackers to cause a denial of service (NULL pointer dereference

and application crash) via an SLP invite message that lacks certain

required fields, as demonstrated by a malformed message from a KMess

client (CVE-2009-3083).

 

The msn_slp_process_msg function in libpurple/protocols/msn/slpcall.c

in the MSN protocol plugin in libpurple 2.6.0 and 2.6.1, as used in

Pidgin before 2.6.2, allows remote attackers to cause a denial of

service (application crash) via a handwritten (aka Ink) message,

related to an uninitialized variable and the incorrect UTF16-LE

charset name (CVE-2009-3084).

 

The XMPP protocol plugin in libpurple in Pidgin before 2.6.2 does

not properly handle an error IQ stanza during an attempted fetch of

a custom smiley, which allows remote attackers to cause a denial of

service (application crash) via XHTML-IM content with cid: images

(CVE-2009-3085).

 

This update provides pidgin 2.6.2, which is not vulnerable to these

issues.