CVE-2011-2943

EUVD-2011-2911
The irc_msg_who function in msgs.c in the IRC protocol plugin in libpurple 2.8.0 through 2.9.0 in Pidgin before 2.10.0 does not properly validate characters in nicknames, which allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted nickname that is not properly handled in a WHO response.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 UNKNOWN
NETWORK
MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
Base Score
CVSS 3.x
EPSS Score
Percentile: 88%
Affected Products (NVD)
VendorProductVersion
pidginlibpurple
2.8.0
pidginlibpurple
2.9.0
pidginpidgin
𝑥
≤ 2.9.0
pidginpidgin
2.0.0
pidginpidgin
2.0.1
pidginpidgin
2.0.2
pidginpidgin
2.1.0
pidginpidgin
2.1.1
pidginpidgin
2.2.0
pidginpidgin
2.2.1
pidginpidgin
2.2.2
pidginpidgin
2.3.0
pidginpidgin
2.3.1
pidginpidgin
2.4.0
pidginpidgin
2.4.1
pidginpidgin
2.4.2
pidginpidgin
2.4.3
pidginpidgin
2.5.0
pidginpidgin
2.5.1
pidginpidgin
2.5.2
pidginpidgin
2.5.3
pidginpidgin
2.5.4
pidginpidgin
2.5.5
pidginpidgin
2.5.6
pidginpidgin
2.5.7
pidginpidgin
2.5.8
pidginpidgin
2.5.9
pidginpidgin
2.6.0
pidginpidgin
2.6.1
pidginpidgin
2.6.2
pidginpidgin
2.6.4
pidginpidgin
2.6.5
pidginpidgin
2.6.6
pidginpidgin
2.7.0
pidginpidgin
2.7.1
pidginpidgin
2.7.2
pidginpidgin
2.7.3
pidginpidgin
2.7.4
pidginpidgin
2.7.5
pidginpidgin
2.7.6
pidginpidgin
2.7.7
pidginpidgin
2.7.8
pidginpidgin
2.7.9
pidginpidgin
2.7.10
pidginpidgin
2.7.11
pidginpidgin
2.8.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
pidgin
bookworm
2.14.12-1
fixed
bullseye
2.14.1-1
fixed
lenny
not-affected
sid
2.14.13-2
fixed
squeeze
not-affected
trixie
2.14.13-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
pidgin
hardy
ignored
lucid
not-affected
maverick
not-affected
natty
not-affected
oneiric
not-affected
References