DescriptionIn Sudo through 1.8.29, the fact that a user has been blocked (e.g., by using the ! character in the shadow file instead of a password hash) is not considered, allowing an attacker (who has access to a Runas ALL sudoer account) to impersonate any blocked user.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium
Debian Bugs947225

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
sudo (PTS)jessie1.8.10p3-1+deb8u5vulnerable
jessie (security)1.8.10p3-1+deb8u6vulnerable
stretch (security)1.8.19p1-2.1+deb9u1vulnerable
buster, buster (security)1.8.27-1+deb10u1vulnerable
bullseye, sid1.8.29-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[buster] - sudo <no-dsa> (Minor issue)
[stretch] - sudo <no-dsa> (Minor issue)
[jessie] - sudo <no-dsa> (Minor issue)

Search for package or bug name: Reporting problems