Description
plugins/rssyl/feed.c in Claws Mail before 3.10.0 disables the CURLOPT_SSL_VERIFYHOST check for CN or SAN host name fields, which makes it easier for remote attackers to spoof servers and conduct man-in-the-middle (MITM) attacks.
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 | claws-mail | 3.10.1-1 | — |
| Debian 13 | claws-mail | 3.10.1-1 | — |
| Debian 12 | claws-mail | 3.10.1-1 | — |
References
- 60422 third-party-advisory
- openSUSE-SU-2014:1291 vendor-advisory
- http://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=3106
- [oss-security] 20140322 Re: CVE request: claws-mail vcalendar plugin stores user/password in cleartext mailing-list
- [claws-mail] 20140526 Claws Mail 3.10.0 Unleashed!!! mailing-list