Description
sametime.c in the Sametime protocol plugin in libpurple in Pidgin before 2.10.7 does not properly terminate long user IDs, which allows remote servers to cause a denial of service (application crash) via a crafted packet.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | pidgin | 2.10.6-3 | — |
| Debian 13 | pidgin | 2.10.6-3 | — |
| Debian 12 | pidgin | 2.10.6-3 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | finch +9 | 2.7.9-10.el6_4.1 | RHSA-2013:0646 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | finch +8 | 2.6.6-17.el5_9.1 | RHSA-2013:0646 |
Advisories 1
- RHSA-2013:0646 Red Hat Security Advisory: pidgin security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
References
- SUSE-SU-2013:0388 vendor-advisory
- USN-1746-1 vendor-advisory
- http://www.pidgin.im/news/security/?id=67
- oval:org.mitre.oval:def:18340 vdb-entry signature
- http://hg.pidgin.im/pidgin/main/rev/c31cf8de31cd
- openSUSE-SU-2013:0405 vendor-advisory
- openSUSE-SU-2013:0407 vendor-advisory