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CVE-2011-4602

The XMPP protocol plugin in libpurple in Pidgin before 2.10.1 does not properly handle missing...

5.0 MediumFix available

The XMPP protocol plugin in libpurple in Pidgin before 2.10.1 does not properly handle missing fields in (1) voice-chat and (2) video-chat stanzas, which allows remote attackers to cause a denial of service (application crash) via a crafted message.

Exploit likelihood

3.58%Up 2.2 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

The XMPP protocol plugin in libpurple in Pidgin before 2.10.1 does not properly handle missing fields in (1) voice-chat and (2) video-chat stanzas, which allows remote attackers to cause a denial of service (application crash) via a crafted message.

Record
CVE-2011-4602
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-20
Updated
2026-11-02
CVE List No score

The XMPP protocol plugin in libpurple in Pidgin before 2.10.1 does not properly handle missing fields in (1) voice-chat and (2) video-chat stanzas, which allows remote attackers to cause a denial of service (application crash) via a crafted message.

Record
CVE-2011-4602
Updated
2026-11-02
EUVDEUVD-2011-4526 No score

The XMPP protocol plugin in libpurple in Pidgin before 2.10.1 does not properly handle missing fields in (1) voice-chat and (2) video-chat stanzas, which allows remote attackers to cause a denial of service (application crash) via a crafted message.

Record
EUVD-2011-4526
Updated
2026-11-03
GitHub AdvisoriesGHSA-f6vj-77mr-4rfr No score

The XMPP protocol plugin in libpurple in Pidgin before 2.10.1 does not properly handle missing...

The XMPP protocol plugin in libpurple in Pidgin before 2.10.1 does not properly handle missing fields in (1) voice-chat and (2) video-chat stanzas, which allows remote attackers to cause a denial of service (application crash) via a crafted message.

Record
GHSA-f6vj-77mr-4rfr
Weakness
CWE-20
Updated
2026-11-02
OSV No score

The XMPP protocol plugin in libpurple in Pidgin before 2.10.1 does not properly handle missing fields in (1) voice-chat and (2) video-chat stanzas, which allows remote attackers to cause a denial of service (application crash) via a crafted message.

Record
CVE-2011-4602
Updated
2026-11-02
OSVDEBIAN-CVE-2011-4602 No score

The XMPP protocol plugin in libpurple in Pidgin before 2.10.1 does not properly handle missing fields in (1) voice-chat and (2) video-chat stanzas, which allows remote attackers to cause a denial of service (application crash) via a crafted message.

Record
DEBIAN-CVE-2011-4602
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
pidgin
Debian:12
 before 2.10.1-1
2.10.1-1
pidgin
Debian:13
 before 2.10.1-1
2.10.1-1
pidgin
Debian:14
 before 2.10.1-1
2.10.1-1
finch
Red Hat:enterprise_linux:4::as
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
finch-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple
Red Hat:enterprise_linux:4::as
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple-perl
Red Hat:enterprise_linux:4::as
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple-tcl
Red Hat:enterprise_linux:4::as
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin
Red Hat:enterprise_linux:4::as
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
Show 88 moreShow less
Affected packages
PackageAffectedFixed
pidgin-debuginfo
Red Hat:enterprise_linux:4::as
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin-perl
Red Hat:enterprise_linux:4::as
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
finch
Red Hat:enterprise_linux:4::desktop
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
finch-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple
Red Hat:enterprise_linux:4::desktop
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple-perl
Red Hat:enterprise_linux:4::desktop
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple-tcl
Red Hat:enterprise_linux:4::desktop
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin
Red Hat:enterprise_linux:4::desktop
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin-debuginfo
Red Hat:enterprise_linux:4::desktop
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin-perl
Red Hat:enterprise_linux:4::desktop
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
finch
Red Hat:enterprise_linux:4::es
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
finch-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple
Red Hat:enterprise_linux:4::es
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple-perl
Red Hat:enterprise_linux:4::es
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple-tcl
Red Hat:enterprise_linux:4::es
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin
Red Hat:enterprise_linux:4::es
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin-debuginfo
Red Hat:enterprise_linux:4::es
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin-perl
Red Hat:enterprise_linux:4::es
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
finch
Red Hat:enterprise_linux:4::ws
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
finch-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple
Red Hat:enterprise_linux:4::ws
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple-perl
Red Hat:enterprise_linux:4::ws
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
libpurple-tcl
Red Hat:enterprise_linux:4::ws
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin
Red Hat:enterprise_linux:4::ws
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin-debuginfo
Red Hat:enterprise_linux:4::ws
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
pidgin-perl
Red Hat:enterprise_linux:4::ws
From an advisory covering 3 CVEs
 before 0:2.6.6-10.el4
0:2.6.6-10.el4
finch
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
libpurple
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
libpurple-perl
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
libpurple-tcl
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
pidgin
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
pidgin-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
pidgin-perl
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
finch-devel
Red Hat:enterprise_linux:5::client_workstation
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
libpurple-devel
Red Hat:enterprise_linux:5::client_workstation
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
pidgin
Red Hat:enterprise_linux:5::client_workstation
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
pidgin-debuginfo
Red Hat:enterprise_linux:5::client_workstation
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
pidgin-devel
Red Hat:enterprise_linux:5::client_workstation
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
finch
Red Hat:rhel_productivity:5
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
finch-devel
Red Hat:rhel_productivity:5
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
libpurple
Red Hat:rhel_productivity:5
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
libpurple-devel
Red Hat:rhel_productivity:5
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
libpurple-perl
Red Hat:rhel_productivity:5
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
libpurple-tcl
Red Hat:rhel_productivity:5
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
pidgin
Red Hat:rhel_productivity:5
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
pidgin-debuginfo
Red Hat:rhel_productivity:5
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
pidgin-devel
Red Hat:rhel_productivity:5
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
pidgin-perl
Red Hat:rhel_productivity:5
From an advisory covering 3 CVEs
 before 0:2.6.6-5.el5_7.4
0:2.6.6-5.el5_7.4
libpurple
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin-debuginfo
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
finch
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
finch-devel
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
libpurple-devel
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
libpurple-perl
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
libpurple-tcl
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin-devel
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin-docs
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin-perl
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
finch
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
finch-devel
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
libpurple
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
libpurple-devel
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
libpurple-perl
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
libpurple-tcl
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin-debuginfo
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin-devel
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin-docs
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin-perl
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
libpurple
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin-debuginfo
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
finch
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
finch-devel
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
libpurple-devel
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
libpurple-perl
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
libpurple-tcl
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin-devel
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin-docs
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2
pidgin-perl
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.7.9-3.el6.2
0:2.7.9-3.el6.2

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-4602 is a medium vulnerability (CVSS 5.0) in Pidgin, published December 17, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.58%, the 89th percentile. Fixed in pidgin 2.10.1-1.

References

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