DescriptionMultiple CRLF injection vulnerabilities in session.c in sshd in OpenSSH before 7.2p2 allow remote authenticated users to bypass intended shell-command restrictions via crafted X11 forwarding data, related to the (1) do_authenticated1 and (2) session_x11_req functions.
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 (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openssh (PTS)wheezy1:6.0p1-4+deb7u4vulnerable
wheezy (security)1:6.0p1-4+deb7u7vulnerable
jessie (security)1:6.7p1-5+deb8u3vulnerable
buster, sid1:7.6p1-4fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[jessie] - openssh <no-dsa> (Minor issue)
[wheezy] - openssh <no-dsa> (Minor issue)
Portable OpenSSH 7.2p2 contains a fix for this vulnerability.
Upstream fix:

Search for package or bug name: Reporting problems