Description
In Horde_Crypt before 2.7.6, as used in Horde Groupware Webmail Edition through 5.2.17, OS Command Injection can occur if the attacker is an authenticated Horde Webmail user, has PGP features enabled in their preferences, and attempts to encrypt an email addressed to a maliciously crafted email address.
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 12 | php-horde-crypt | 2.7.5-2 | — |
| Debian 8 | php-horde-crypt | 2.5.0-5+deb8u1 | DLA-1398-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | php-horde-crypt | No fix yet | — |
Advisories 1
- DLA-1398-1 php-horde-crypt - security update Debian Security (DSA / DLA) · Mar 9, 2026