An error in the hostname matching in msmtp might enable remote attackers to conduct man-in-the-middle attacks.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| mail-mta/msmtp | * | < 1.4.19 | >= 1.4.19 |
msmtp is an SMTP client and SMTP plugin for mail user agents such as Mutt.
A vulnerability have been discovered in msmtp. Please review the CVE identifier referenced below for details.
A remote attacker might employ a specially crafted certificate to conduct man-in-the-middle attacks on SSL connections made using msmtp.
There is no known workaround at this time.
All msmtp users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=mail-mta/msmtp-1.4.19"