Description
Sylpheed 2.2.7 and earlier does not properly use the --status-fd argument when invoking GnuPG, which prevents Sylpheed from visually distinguishing between signed and unsigned portions of OpenPGP messages with multiple components, which allows remote attackers to forge the contents of a message without detection.
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 | sylpheed | No fix yet | — |
| Debian 12 | sylpheed | No fix yet | — |
References
- [gnupg-users] 20070306 [Announce] Multiple Messages Problem in GnuPG and GPGME mailing-list
- 2353 third-party-advisory
- 20070305 CORE-2007-0115: GnuPG and GnuPG clients unsigned data injection vulnerability mailing-list
- 22777 vdb-entry
- http://www.coresecurity.com/?action=item&id=1687
- 20070305 CORE-2007-0115: GnuPG and GnuPG clients unsigned data injection vulnerability mailing-list
- 24414 third-party-advisory
- 1017727 vdb-entry
- ADV-2007-0835 vdb-entry