Description
Heap-based buffer overflow in iconvert.c in the bogolexer component in Bogofilter before 1.2.3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an email containing a base64 string that is decoded to incomplete multibyte characters.
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 | bogofilter | 1.2.2+dfsg1-2 | — |
| Debian 13 | bogofilter | 1.2.2+dfsg1-2 | — |
| Debian 12 | bogofilter | 1.2.2+dfsg1-2 | — |
| Debian 6.0 | bogofilter | 1.2.2-2+squeeze1 | DSA-2585-1 |
Advisories 1
- DSA-2585-1 bogofilter - heap-based buffer overflow Debian Security (DSA / DLA) · Mar 9, 2026
References
- MDVSA-2013:064 vendor-advisory
- [oss-security] 20121204 CVE-2012-5468: bogofilter-SA-2012-01 mailing-list
- 51521 third-party-advisory
- http://bogofilter.sourceforge.net/security/bogofilter-SA-2012-01
- 56804 vdb-entry
- DSA-2585 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=883358
- 51334 third-party-advisory
- http://bogofilter.svn.sourceforge.net/viewvc/bogofilter?view=revision&revision=6973
- bogofilter-bogolexer-base64-dos(80524) vdb-entry
- http://bogofilter.svn.sourceforge.net/viewvc/bogofilter?view=revision&revision=6975