CVE-2023-51385

EUVD-2023-56106
In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or host name.
OS Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CISA-ADPADP
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 94%
Affected Products (NVD)
VendorProductVersion
openbsdopenssh
𝑥
< 9.6
debiandebian_linux
10.0
debiandebian_linux
11.0
debiandebian_linux
12.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
openssh
bookworm
1:9.2p1-2+deb12u3
fixed
bookworm (security)
1:9.2p1-2+deb12u3
fixed
bullseye
1:8.4p1-5+deb11u3
fixed
bullseye (security)
1:8.4p1-5+deb11u3
fixed
sid
1:9.9p1-3
fixed
trixie
1:9.9p1-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
openssh
bionic
Fixed 1:7.6p1-4ubuntu0.7+esm3
released
focal
Fixed 1:8.2p1-4ubuntu0.11
released
jammy
Fixed 1:8.9p1-3ubuntu0.6
released
lunar
Fixed 1:9.0p1-1ubuntu8.7
released
mantic
Fixed 1:9.3p1-1ubuntu3.2
released
noble
Fixed 1:9.6p1-3ubuntu1
released
oracular
Fixed 1:9.6p1-3ubuntu1
released
trusty
ignored
xenial
Fixed 1:7.2p2-4ubuntu2.10+esm6
released
openssh-ssh1
bionic
needed
focal
needed
jammy
needed
lunar
ignored
mantic
ignored
noble
needed
oracular
needed
trusty
dne
xenial
dne
Common Weakness Enumeration
References
http://seclists.org/fulldisclosure/2024/Mar/21
http://www.openwall.com/lists/oss-security/2023/12/26/4
https://github.com/openssh/openssh-portable/commit/7ef3787c84b6b524501211b11a26c742f829af1a
https://lists.debian.org/debian-lts-announce/2023/12/msg00017.html
https://security.gentoo.org/glsa/202312-17
https://security.netapp.com/advisory/ntap-20240105-0005/
https://support.apple.com/kb/HT214084
https://vin01.github.io/piptagole/ssh/security/openssh/libssh/remote-code-execution/2023/12/20/openssh-proxycommand-libssh-rce.html
https://www.debian.org/security/2023/dsa-5586
https://www.openssh.com/txt/release-9.6
https://www.openwall.com/lists/oss-security/2023/12/18/2
http://seclists.org/fulldisclosure/2024/Mar/21
http://www.openwall.com/lists/oss-security/2023/12/26/4
http://www.openwall.com/lists/oss-security/2025/10/07/1
http://www.openwall.com/lists/oss-security/2025/10/12/1
https://github.com/openssh/openssh-portable/commit/7ef3787c84b6b524501211b11a26c742f829af1a
https://lists.debian.org/debian-lts-announce/2023/12/msg00017.html
https://security.gentoo.org/glsa/202312-17
https://security.netapp.com/advisory/ntap-20240105-0005/
https://support.apple.com/kb/HT214084
https://vin01.github.io/piptagole/ssh/security/openssh/libssh/remote-code-execution/2023/12/20/openssh-proxycommand-libssh-rce.html
https://www.debian.org/security/2023/dsa-5586
https://www.openssh.com/txt/release-9.6
https://www.openwall.com/lists/oss-security/2023/12/18/2