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Fencer Intel
high 7.5

CVE-2013-6487 json

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…

published 2014-02-06 12 y ago modified 2026-06-17 4 mo ago also EUVD-2013-6290

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
8.2%
EPSS 8.2% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

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.

Patch / fix

  • pidgin Debian 14, Debian 13, Debian 12 2.10.8-1
  • libgadu Debian 14, Debian 13, Debian 12 1:1.11.3-1

debian advisories DEBIAN-CVE-2013-6487

  • pidgin RHEL 5 2.6.6-32.el5
  • pidgin RHEL 6 2.7.9-27.el6
  • finch RHEL 5 2.6.6-32.el5
  • finch RHEL 6 2.7.9-27.el6
  • libpurple RHEL 5 2.6.6-32.el5
  • libpurple RHEL 6 2.7.9-27.el6
  • pidgin-perl RHEL 5 2.6.6-32.el5
  • pidgin-perl RHEL 6 2.7.9-27.el6

red hat advisories RHSA-2014:0139

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2013-6487 updated cvss 4.3

pidgin: Heap-based buffer overflow in Gadu-Gadu protocol plugin

  • Red Hat Enterprise Linux Desktop (v. 5 client) finch 2.6.6-32.el5, pidgin 2.6.6-32.el5, libpurple 2.6.6-32.el5, pidgin-perl 2.6.6-32.el5, libpurple-tcl 2.6.6-32.el5, libpurple-perl 2.6.6-32.el5 Red Hat Enterprise Linux Desktop (v. 6) pidgin 2.7.9-27.el6, libpurple 2.7.9-27.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) finch 2.7.9-27.el6, pidgin 2.7.9-27.el6, pidgin-perl 2.7.9-27.el6, libpurple-tcl 2.7.9-27.el6, libpurple-perl 2.7.9-27.el6 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) pidgin 2.6.6-32.el5 Red Hat Enterprise Linux Server Optional (v. 6) finch 2.7.9-27.el6, pidgin 2.7.9-27.el6, libpurple 2.7.9-27.el6, pidgin-perl 2.7.9-27.el6, libpurple-tcl 2.7.9-27.el6, libpurple-perl 2.7.9-27.el6 Red Hat Enterprise Linux Workstation (v. 6) pidgin 2.7.9-27.el6, libpurple 2.7.9-27.el6
    +1 more products
    Red Hat Enterprise Linux Workstation Optional (v. 6) finch 2.7.9-27.el6, pidgin 2.7.9-27.el6, pidgin-perl 2.7.9-27.el6, libpurple-tcl 2.7.9-27.el6, libpurple-perl 2.7.9-27.el6
    fixed: vendor fix RHSA-2014:0139
  • Red Hat Enterprise Linux 7 finch, pidgin, libpurple, pidgin-perl, libpurple-tcl, libpurple-perl
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

8.17% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.