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CVE-2013-6487

Integer overflow in libpurple/protocols/gg/lib/http.c in the Gadu-Gadu (gg) parser in Pidgin...

7.5 HighFix available

Integer overflow in libpurple/protocols/gg/lib/http.c in the Gadu-Gadu (gg) parser in Pidgin before 2.10.8 allows remote attackers to have an unspecified impact via a large Content-Length value, which triggers a buffer overflow.

Exploit likelihood

8.17%Up 4.4 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

Integer overflow in libpurple/protocols/gg/lib/http.c in the Gadu-Gadu (gg) parser in Pidgin before 2.10.8 allows remote attackers to have an unspecified impact via a large Content-Length value, which triggers a buffer overflow.

Record
CVE-2013-6487
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-189
Updated
2026-11-02
CVE List No score

Integer overflow in libpurple/protocols/gg/lib/http.c in the Gadu-Gadu (gg) parser in Pidgin before 2.10.8 allows remote attackers to have an unspecified impact via a large Content-Length value, which triggers a buffer overflow.

Record
CVE-2013-6487
Updated
2026-11-02
EUVDEUVD-2013-6290 No score

Integer overflow in libpurple/protocols/gg/lib/http.c in the Gadu-Gadu (gg) parser in Pidgin before 2.10.8 allows remote attackers to have an unspecified impact via a large Content-Length value, which triggers a buffer overflow.

Record
EUVD-2013-6290
Updated
2026-11-03
GitHub AdvisoriesGHSA-hvf5-wpx9-vrrj No score

Integer overflow in libpurple/protocols/gg/lib/http.c in the Gadu-Gadu (gg) parser in Pidgin...

Integer overflow in libpurple/protocols/gg/lib/http.c in the Gadu-Gadu (gg) parser in Pidgin before 2.10.8 allows remote attackers to have an unspecified impact via a large Content-Length value, which triggers a buffer overflow.

Record
GHSA-hvf5-wpx9-vrrj
Updated
2026-11-02
OSV No score

Integer overflow in libpurple/protocols/gg/lib/http.c in the Gadu-Gadu (gg) parser in Pidgin before 2.10.8 allows remote attackers to have an unspecified impact via a large Content-Length value, which triggers a buffer overflow.

Record
CVE-2013-6487
Updated
2026-11-02
OSVDEBIAN-CVE-2013-6487 No score

Integer overflow in libpurple/protocols/gg/lib/http.c in the Gadu-Gadu (gg) parser in Pidgin before 2.10.8 allows remote attackers to have an unspecified impact via a large Content-Length value, which triggers a buffer overflow.

Record
DEBIAN-CVE-2013-6487
Updated
2026-11-02
Show 4 moreShow less
OSVMGASA-2014-0034 No score

Updated pidgin package fixes security vulnerabilities

Many places in the Yahoo! protocol plugin assumed incoming strings were UTF-8 and failed to transcode from non-UTF-8 encodings. This can lead to a crash when receiving strings that aren't UTF-8 (CVE-2012-6152).

A remote XMPP user can trigger a crash on some systems by sending a message with a timestamp in the distant future (CVE-2013-6477).

libX11 forcefully exits causing a crash when Pidgin tries to create an exceptionally wide tooltip window when hovering the pointer over a long URL (CVE-2013-6478).

A malicious server or man-in-the-middle could send a malformed HTTP response that could lead to a crash (CVE-2013-6479).

The Yahoo! protocol plugin failed to validate a length field before trying to read from a buffer, which could result in reading past the end of the buffer which could cause a crash when reading a P2P message (CVE-2013-6481).

NULL pointer dereferences in the MSN protocol plugin due to a malformed Content-Length header, or a malicious server or man-in-the-middle sending a specially crafted OIM data XML response or SOAP response (CVE-2013-6482).

The XMPP protocol plugin failed to ensure that iq replies came from the person they were sent to. A remote user could send a spoofed iq reply and attempt to guess the iq id. This could allow an attacker to inject fake data or trigger a null pointer dereference (CVE-2013-6483).

Incorrect error handling when reading the response from a STUN server could lead to a crash (CVE-2013-6484).

A malicious server or man-in-the-middle could cause a buffer overflow by sending a malformed HTTP response with chunked Transfer-Encoding with invalid chunk sizes (CVE-2013-6485).

A malicious server or man-in-the-middle could send a large value for Content-Length and cause an integer overflow which could lead to a buffer overflow in Gadu-Gadu HTTP parsing (CVE-2013-6487).

A specially crafted emoticon value could cause an integer overflow which could lead to a buffer overflow in MXit emoticon parsing (CVE-2013-6489).

A Content-Length of -1 could lead to a buffer overflow in SIMPLE header parsing (CVE-2013-6490).

A malicious server or man-in-the-middle could trigger a crash in IRC argument parsing in libpurple by sending a message with fewer than expected arguments (CVE-2014-0020).

Record
MGASA-2014-0034
Updated
2026-11-02
OSVMGASA-2014-0074 No score

Updated libgadu packages fix security vulnerability

A malicious server or man-in-the-middle could send a large value for Content-Length and cause an integer overflow which could lead to a buffer overflow in Gadu-Gadu HTTP parsing (CVE-2013-6487).

Record
MGASA-2014-0074
Updated
2026-11-02
OSVopenSUSE-SU-2024:10343-1 No score

libgadu-devel-1.12.1-1.10 on GA media

These are all security issues fixed in the libgadu-devel-1.12.1-1.10 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10343-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10432-1 No score

finch-2.11.0-4.1 on GA media

These are all security issues fixed in the finch-2.11.0-4.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10432-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
libgadu
Debian:12
before 1:1.11.3-1
1:1.11.3-1
libgadu
Debian:13
before 1:1.11.3-1
1:1.11.3-1
libgadu
Debian:14
before 1:1.11.3-1
1:1.11.3-1
pidgin
Debian:12
before 2.10.8-1
2.10.8-1
pidgin
Debian:13
before 2.10.8-1
2.10.8-1
pidgin
Debian:14
before 2.10.8-1
2.10.8-1
libgadu
Debian:7
before 1:1.11.2-1+deb7u1, plus listed versions
1:1.11.2-1
1:1.11.2-1+deb7u1
libgadu
Debian:6.0
before 1:1.9.0-2+squeeze2, plus listed versions
1:1.9.0-2
1:1.9.0-2+squeeze2
pidgin
Debian:7
before 2.10.9-1~deb7u1, plus listed versions
2.10.6-32.10.7-12.10.7-22.10.7-2~bpo70+12.10.8-12.10.9-1~bpo60+1
2.10.9-1~deb7u1
pidgin
Mageia:3
before 2.10.9-1.mga3
2.10.9-1.mga3
Show 47 moreShow less
Affected packages
PackageAffectedFixed
libgadu
Mageia:3
before 1.11.3-1.mga3
1.11.3-1.mga3
libgadu
Mageia:4
before 1.11.3-1.mga4
1.11.3-1.mga4
finch
Red Hat:enterprise_linux:5::client
before 0:2.6.6-32.el5
0:2.6.6-32.el5
libpurple
Red Hat:enterprise_linux:5::client
before 0:2.6.6-32.el5
0:2.6.6-32.el5
libpurple-perl
Red Hat:enterprise_linux:5::client
before 0:2.6.6-32.el5
0:2.6.6-32.el5
libpurple-tcl
Red Hat:enterprise_linux:5::client
before 0:2.6.6-32.el5
0:2.6.6-32.el5
pidgin
Red Hat:enterprise_linux:5::client
before 0:2.6.6-32.el5
0:2.6.6-32.el5
pidgin-debuginfo
Red Hat:enterprise_linux:5::client
before 0:2.6.6-32.el5
0:2.6.6-32.el5
pidgin-perl
Red Hat:enterprise_linux:5::client
before 0:2.6.6-32.el5
0:2.6.6-32.el5
finch-devel
Red Hat:enterprise_linux:5::client_workstation
before 0:2.6.6-32.el5
0:2.6.6-32.el5
libpurple-devel
Red Hat:enterprise_linux:5::client_workstation
before 0:2.6.6-32.el5
0:2.6.6-32.el5
pidgin
Red Hat:enterprise_linux:5::client_workstation
before 0:2.6.6-32.el5
0:2.6.6-32.el5
pidgin-debuginfo
Red Hat:enterprise_linux:5::client_workstation
before 0:2.6.6-32.el5
0:2.6.6-32.el5
pidgin-devel
Red Hat:enterprise_linux:5::client_workstation
before 0:2.6.6-32.el5
0:2.6.6-32.el5
libpurple
Red Hat:enterprise_linux:6::client
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin
Red Hat:enterprise_linux:6::client
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin-debuginfo
Red Hat:enterprise_linux:6::client
before 0:2.7.9-27.el6
0:2.7.9-27.el6
finch
Red Hat:enterprise_linux:6::client
before 0:2.7.9-27.el6
0:2.7.9-27.el6
finch-devel
Red Hat:enterprise_linux:6::client
before 0:2.7.9-27.el6
0:2.7.9-27.el6
libpurple-devel
Red Hat:enterprise_linux:6::client
before 0:2.7.9-27.el6
0:2.7.9-27.el6
libpurple-perl
Red Hat:enterprise_linux:6::client
before 0:2.7.9-27.el6
0:2.7.9-27.el6
libpurple-tcl
Red Hat:enterprise_linux:6::client
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin-devel
Red Hat:enterprise_linux:6::client
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin-docs
Red Hat:enterprise_linux:6::client
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin-perl
Red Hat:enterprise_linux:6::client
before 0:2.7.9-27.el6
0:2.7.9-27.el6
finch
Red Hat:enterprise_linux:6::server
before 0:2.7.9-27.el6
0:2.7.9-27.el6
finch-devel
Red Hat:enterprise_linux:6::server
before 0:2.7.9-27.el6
0:2.7.9-27.el6
libpurple
Red Hat:enterprise_linux:6::server
before 0:2.7.9-27.el6
0:2.7.9-27.el6
libpurple-devel
Red Hat:enterprise_linux:6::server
before 0:2.7.9-27.el6
0:2.7.9-27.el6
libpurple-perl
Red Hat:enterprise_linux:6::server
before 0:2.7.9-27.el6
0:2.7.9-27.el6
libpurple-tcl
Red Hat:enterprise_linux:6::server
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin
Red Hat:enterprise_linux:6::server
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin-debuginfo
Red Hat:enterprise_linux:6::server
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin-devel
Red Hat:enterprise_linux:6::server
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin-docs
Red Hat:enterprise_linux:6::server
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin-perl
Red Hat:enterprise_linux:6::server
before 0:2.7.9-27.el6
0:2.7.9-27.el6
libpurple
Red Hat:enterprise_linux:6::workstation
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin
Red Hat:enterprise_linux:6::workstation
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin-debuginfo
Red Hat:enterprise_linux:6::workstation
before 0:2.7.9-27.el6
0:2.7.9-27.el6
finch
Red Hat:enterprise_linux:6::workstation
before 0:2.7.9-27.el6
0:2.7.9-27.el6
finch-devel
Red Hat:enterprise_linux:6::workstation
before 0:2.7.9-27.el6
0:2.7.9-27.el6
libpurple-devel
Red Hat:enterprise_linux:6::workstation
before 0:2.7.9-27.el6
0:2.7.9-27.el6
libpurple-perl
Red Hat:enterprise_linux:6::workstation
before 0:2.7.9-27.el6
0:2.7.9-27.el6
libpurple-tcl
Red Hat:enterprise_linux:6::workstation
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin-devel
Red Hat:enterprise_linux:6::workstation
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin-docs
Red Hat:enterprise_linux:6::workstation
before 0:2.7.9-27.el6
0:2.7.9-27.el6
pidgin-perl
Red Hat:enterprise_linux:6::workstation
before 0:2.7.9-27.el6
0:2.7.9-27.el6

History

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

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

In short

CVE-2013-6487 is a high vulnerability (CVSS 7.5) in Pidgin, published February 3, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 8.17%, the 94th percentile. Fixed in libgadu 1:1.11.3-1.

References

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