CVE Vulnerabilities

CVE-2009-3766

Published: Oct 23, 2009 | Modified: Apr 09, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
5.8 MODERATE
AV:N/AC:M/Au:N/C:P/I:P/A:N
RedHat/V3
Ubuntu
NEGLIGIBLE
root.io logo minimus.io logo echo.ai logo

mutt_ssl.c in mutt 1.5.16 and other versions before 1.5.19, when OpenSSL is used, does not verify the domain name in the subjects Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

Affected Software

NameVendorStart VersionEnd Version
MuttMutt1.5.16 (including)1.5.19 (excluding)
MuttUbuntudapper*
MuttUbuntudevel*
MuttUbuntuhardy*
MuttUbuntuintrepid*
MuttUbuntujaunty*
MuttUbuntukarmic*
MuttUbuntulucid*

References