Description
markup.c in the MXit protocol plugin in libpurple in Pidgin before 2.10.10 allows remote servers to cause a denial of service (application crash) via a large length value in an emoticon response.
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 | 2.10.10-1 | — |
| Debian 13 | pidgin | 2.10.10-1 | — |
| Debian 12 | pidgin | 2.10.10-1 | — |
| Debian 7 | pidgin | 2.10.10-1~deb7u1 | DSA-3055-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | pidgin | 1:2.10.9-0ubuntu3.2 | USN-2390-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | finch +8 | 2.10.11-5.el7 | RHSA-2017:1854 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | finch +8 | 2.10.11-5.el7 | ELSA-2017-1854 |
Advisories 4
- RHSA-2017:1854 Red Hat Security Advisory: pidgin security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- USN-2390-1 pidgin vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3055-1 pidgin - security update Debian Security (DSA / DLA) · Mar 9, 2026
- ELSA-2017-1854 Moderate: pidgin security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 7, 2017
References
- http://pidgin.im/news/security/?id=87
- RHSA-2017:1854 vendor-advisory
- USN-2390-1 vendor-advisory
- openSUSE-SU-2014:1376 vendor-advisory
- 60741 third-party-advisory
- http://hg.pidgin.im/pidgin/main/rev/6436e14bdb9d
- DSA-3055 vendor-advisory
- openSUSE-SU-2014:1397 vendor-advisory
- 61968 third-party-advisory