Description
Enigmail 1.7.x before 1.7.2 sends emails in plaintext when encryption is enabled and only BCC recipients are specified, which allows remote attackers to obtain sensitive information by sniffing the network.
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 11 | enigmail | 2:1.7.2-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | enigmail | 2:1.7.2-0ubuntu0.14.04.1 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | enigmail | 1.9.6.1-1.1 | openSUSE-SU-2024:10141-1 |
Advisories 1
- openSUSE-SU-2024:10141-1 enigmail-1.9.6.1-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- openSUSE-SU-2014:1096 vendor-advisory
- 60779 third-party-advisory
- http://sourceforge.net/p/enigmail/forum/support/thread/3e7268a4/
- 60887 third-party-advisory
- https://advisories.mageia.org/MGASA-2014-0421.html
- GLSA-201504-01 vendor-advisory
- http://sourceforge.net/p/enigmail/bugs/294/
- openSUSE-SU-2014:1086 vendor-advisory
- [oss-security] 20140821 Re: Enigmail warning mailing-list
- [oss-security] 20140818 Enigmail warning mailing-list
- 61854 third-party-advisory