Description
Format string vulnerability in the log_message_cb function in otr-plugin.c in the Off-the-Record Messaging (OTR) pidgin-otr plugin before 3.2.1 for Pidgin might allow remote attackers to execute arbitrary code via format string specifiers in data that generates a log message.
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 13 | pidgin-otr | 3.2.1-1 | — |
| Debian 12 | pidgin-otr | 3.2.1-1 | — |
| Debian 6.0 | pidgin-otr | 3.2.0-5+squeeze1 | DSA-2476-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | pidgin-otr | 4.0.2-1.5 | openSUSE-SU-2024:10258-1 |
Advisories 2
- DSA-2476-1 pidgin-otr - format string vulnerability Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10258-1 pidgin-otr-4.0.2-1.5 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- GLSA-201207-05 vendor-advisory
- SUSE-SU-2012:0703 vendor-advisory
- DSA-2476 vendor-advisory
- [oss-security] 20120516 Format string security flaw in pidgin-otr mailing-list