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Fencer Intel
medium 6.4

CVE-2013-6483 json

The XMPP protocol plugin in libpurple in Pidgin before 2.10.8 does not properly determine whether the from address in an iq reply is consis…

published 2014-02-06 12 y ago modified 2026-06-17 4 mo ago also EUVD-2013-6286

cvss
6.4
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

The XMPP protocol plugin in libpurple in Pidgin before 2.10.8 does not properly determine whether the from address in an iq reply is consistent with the to address in an iq request, which allows remote attackers to spoof iq traffic or cause a denial of service (NULL pointer dereference and application crash) via a crafted reply.

Patch / fix

  • pidgin Debian 14, Debian 13, Debian 12 2.10.8-1

debian advisories DEBIAN-CVE-2013-6483

  • 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-2013-6483 updated cvss 4.3

pidgin: Possible spoofing using iq replies in XMPP 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

3.89% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:N/I:P/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

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.