CVE-2021-41617
CVE-2021-41617
This page contains facts from public vulnerability sources. Check the original advisory before updating.
sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user.
CVSS 7.0 · High · EPSS 2.5% · Fix available
- Published
- Updated
Affected products and versions
n/a
- Versions
- n/a: Affected
No fix published
openssh Debian:12
- Affected ranges
- ECOSYSTEM: < 1:8.7p1-1
Update to 1:8.7p1-1
openssh Debian:13
- Affected ranges
- ECOSYSTEM: < 1:8.7p1-1
Update to 1:8.7p1-1
openssh Debian:14
- Affected ranges
- ECOSYSTEM: < 1:8.7p1-1
Update to 1:8.7p1-1
openssh Ubuntu:Pro:14.04:LTS
- Versions
- 1:6.2p2-6
- 1:6.2p2-6ubuntu1
- 1:6.4p1-1
- 1:6.4p1-2
- 1:6.5p1-1
- 1:6.5p1-2
- 1:6.5p1-3
- 1:6.5p1-4
- 1:6.5p1-6
- 1:6.6p1-1
- 1:6.6p1-2
- 1:6.6p1-2ubuntu1
- 1:6.6p1-2ubuntu2
- 1:6.6p1-2ubuntu2.2
- 1:6.6p1-2ubuntu2.3
- 1:6.6p1-2ubuntu2.4
- 1:6.6p1-2ubuntu2.6
- 1:6.6p1-2ubuntu2.7
- 1:6.6p1-2ubuntu2.8
- 1:6.6p1-2ubuntu2.10
- 1:6.6p1-2ubuntu2.11
- 1:6.6p1-2ubuntu2.12
- 1:6.6p1-2ubuntu2.13
- 1:6.6p1-2ubuntu2.13+esm1
- 1:6.6p1-2ubuntu2.13+esm2
- 1:6.6p1-2ubuntu2.13+esm3
- 1:6.6p1-2ubuntu2.13+esm4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
openssh Ubuntu:Pro:16.04:LTS
- Versions
- 1:6.9p1-2
- 1:6.9p1-3
- 1:7.1p1-1
- 1:7.1p1-3
- 1:7.1p1-4
- 1:7.1p1-6
- 1:7.1p2-1
- 1:7.1p2-2
- 1:7.2p1-1
- 1:7.2p2-1
- 1:7.2p2-2
- 1:7.2p2-3
- 1:7.2p2-4
- 1:7.2p2-4ubuntu1
- 1:7.2p2-4ubuntu2.1
- 1:7.2p2-4ubuntu2.2
- 1:7.2p2-4ubuntu2.4
- 1:7.2p2-4ubuntu2.5
- 1:7.2p2-4ubuntu2.6
- 1:7.2p2-4ubuntu2.7
- 1:7.2p2-4ubuntu2.8
- 1:7.2p2-4ubuntu2.10
- 1:7.2p2-4ubuntu2.10+esm1
- Affected ranges
- ECOSYSTEM: < 1:7.2p2-4ubuntu2.10+esm2
Update to 1:7.2p2-4ubuntu2.10+esm2
openssh Ubuntu:Pro:FIPS-updates:16.04:LTS
- Versions
- 1:7.2p2-4ubuntu2.fips.2.2.3
- 1:7.2p2-4ubuntu2.fips.2.4.1
- 1:7.2p2-4ubuntu2.fips.2.4.2
- 1:7.2p2-4ubuntu2.fips.2.8.1
- 1:7.2p2-4ubuntu2.fips.2.10.1
- 1:7.2p2-4ubuntu2.fips.2.10.2
- Affected ranges
- ECOSYSTEM: < 1:7.2p2-4ubuntu2.fips.2.10.3
Update to 1:7.2p2-4ubuntu2.fips.2.10.3
openssh Ubuntu:Pro:FIPS:16.04:LTS
- Versions
- 1:7.2p2-4ubuntu2.fips.2.2
- 1:7.2p2-4ubuntu2.fips.2.2.1
- 1:7.2p2-4ubuntu2.fips.2.10.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
openssh Ubuntu:Pro:18.04:LTS
- Versions
- 1:7.5p1-10
- 1:7.6p1-4
- 1:7.6p1-4ubuntu0.1
- 1:7.6p1-4ubuntu0.2
- 1:7.6p1-4ubuntu0.3
- 1:7.6p1-4ubuntu0.5
- 1:7.6p1-4ubuntu0.6
- 1:7.6p1-4ubuntu0.7
- 1:7.6p1-4ubuntu0.7+esm1
- 1:7.6p1-4ubuntu0.7+esm2
- 1:7.6p1-4ubuntu0.7+esm3
- 1:7.6p1-4ubuntu0.7+esm4
- 1:7.6p1-4ubuntu0.7+esm5
- 1:7.6p1-4ubuntu0.7+esm6
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
openssh-ssh1 Ubuntu:18.04:LTS
- Versions
- 1:7.5p1-8
- 1:7.5p1-9
- 1:7.5p1-9build1
- 1:7.5p1-10
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
openssh Ubuntu:Pro:FIPS-updates:18.04:LTS
- Versions
- 1:7.9p1-10~ubuntu18.04.fips.0.1
- 1:7.9p1-10~ubuntu18.04.fips.0.2
- 1:7.9p1-10~ubuntu18.04.fips.0.3
- 1:7.9p1-10~ubuntu18.04.fips.0.4
- 1:7.9p1-10~ubuntu18.04.fips.0.5
- 1:7.9p1-10~ubuntu18.04.fips.0.6
- 1:7.9p1-10~ubuntu18.04.fips.0.7
- 1:7.9p1-10~ubuntu18.04.fips.0.8
- 1:7.9p1-10~ubuntu18.04.fips.0.9
- 1:7.9p1-10~ubuntu18.04.fips.0.10
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
openssh Ubuntu:Pro:FIPS:18.04:LTS
- Versions
- 1:7.9p1-10~ubuntu18.04.fips.0.1
- 1:7.9p1-10~ubuntu18.04.fips.0.2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
openssh Ubuntu:20.04:LTS
- Versions
- 1:8.0p1-6build1
- 1:8.1p1-1
- 1:8.1p1-5
- 1:8.2p1-4
- 1:8.2p1-4ubuntu0.1
- 1:8.2p1-4ubuntu0.2
- 1:8.2p1-4ubuntu0.3
- 1:8.2p1-4ubuntu0.4
- 1:8.2p1-4ubuntu0.5
- 1:8.2p1-4ubuntu0.7
- 1:8.2p1-4ubuntu0.8
- 1:8.2p1-4ubuntu0.9
- 1:8.2p1-4ubuntu0.10
- Affected ranges
- ECOSYSTEM: < 1:8.2p1-4ubuntu0.11
Update to 1:8.2p1-4ubuntu0.11
openssh-ssh1 Ubuntu:20.04:LTS
- Versions
- 1:7.5p1-11build1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
openssh Ubuntu:Pro:FIPS-updates:20.04:LTS
- Versions
- 1:8.2p1-4ubuntu0.fips.0.2.1
- 1:8.2p1-4ubuntu0.fips.0.4.0
- 1:8.2p1-4ubuntu0.fips.0.5.0
- 1:8.2p1-4ubuntu0.fips.0.7
- 1:8.2p1-4ubuntu0.fips.0.8
- 1:8.2p1-4ubuntu0.fips.0.9
- 1:8.2p1-4ubuntu0.fips.0.10
- Affected ranges
- ECOSYSTEM: < 1:8.2p1-4ubuntu0.fips.0.11
Update to 1:8.2p1-4ubuntu0.fips.0.11
openssh Ubuntu:Pro:FIPS:20.04:LTS
- Versions
- 1:8.2p1-4ubuntu0.fips.0.2.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
openssh-ssh1 Ubuntu:22.04:LTS
- Versions
- 1:7.5p1-12
- 1:7.5p1-12build1
- 1:7.5p1-13
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
openssh-ssh1 Ubuntu:24.04:LTS
- Versions
- 1:7.5p1-14
- 1:7.5p1-15
- 1:7.5p1-15build1
- 1:7.5p1-16
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
openssh-ssh1 Ubuntu:25.10
- Versions
- 1:7.5p1-17
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
openssh-ssh1 Ubuntu:26.10
- Versions
- 1:7.5p1-18
- 1:7.5p1-18ubuntu1
- 1:7.5p1-18ubuntu2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
openssh-ssh1 Ubuntu:26.04:LTS
- Versions
- 1:7.5p1-17
- 1:7.5p1-18
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://www.openssh.com/security.html
- https://www.openwall.com/lists/oss-security/2021/09/26/1
- https://www.openssh.com/txt/release-8.8
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XJIONMHMKZDTMH6BQR5TNLF2WDCGWED/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W44V2PFQH5YLRN6ZJTVRKAD7CU6CYYET/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KVI7RWM2JLNMWTOFK6BDUSGNOIPZYPUT/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://bugzilla.suse.com/show_bug.cgi?id=1190975
- https://security.netapp.com/advisory/ntap-20211014-0004/
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.starwindsoftware.com/security/sw-20220805-0001/
- https://www.tenable.com/plugins/nessus/154174
- https://www.debian.org/security/2023/dsa-5586
- https://lists.debian.org/debian-lts-announce/2023/12/msg00017.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
- https://nvd.nist.gov/vuln/detail/CVE-2021-41617