The shared memory manager (associated with pre-authentication compression) in sshd in OpenSSH before 7.4 does not ensure that a bounds check is enforced by all compilers, which might allows local users to gain privileges by leveraging access to a sandboxed privilege-separation process, related to the m_zback and m_zlib data structures.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | alpine-linux-upgrade-openssh | Sep 20, 2017 | Jan 5, 2017 | |
| Amazon_linux | — | amazon-linux-upgrade-openssh | Oct 3, 2017 | Jan 4, 2017 |
| Apple Osx Openssh | apple-osx-upgrade-latest | Mar 28, 2017 | Jan 4, 2017 | |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Jan 5, 2017 | |
| Centos_linux | — | centos-upgrade-opensshcentos-upgrade-openssh-askpasscentos-upgrade-openssh-cavscentos-upgrade-openssh-clientscentos-upgrade-openssh-debuginfocentos-upgrade-openssh-keycatcentos-upgrade-openssh-ldapcentos-upgrade-openssh-servercentos-upgrade-openssh-server-sysvinitcentos-upgrade-pam_ssh_agent_auth | Aug 28, 2019 | Jan 5, 2017 |
| Debian | debian-upgrade-openssh | Feb 25, 2019 | Jan 4, 2017 | |
| F5 Big Ip | f5-bigip-upgrade-latest | Jun 17, 2026 | Jan 27, 2017 | |
| Hpux | — | hpux-cve-2016-10012 | Jul 3, 2018 | Jan 4, 2017 |
| Huawei Euleros 2_0_sp1 | huawei-euleros-2_0_sp1-upgrade-opensshhuawei-euleros-2_0_sp1-upgrade-openssh-askpasshuawei-euleros-2_0_sp1-upgrade-openssh-clientshuawei-euleros-2_0_sp1-upgrade-openssh-keycathuawei-euleros-2_0_sp1-upgrade-openssh-server | Nov 30, 2017 | Jan 4, 2017 | |
| Huawei Euleros 2_0_sp2 | huawei-euleros-2_0_sp2-upgrade-opensshhuawei-euleros-2_0_sp2-upgrade-openssh-askpasshuawei-euleros-2_0_sp2-upgrade-openssh-clientshuawei-euleros-2_0_sp2-upgrade-openssh-keycathuawei-euleros-2_0_sp2-upgrade-openssh-server | Nov 30, 2017 | Jan 4, 2017 | |
| Ibm Aix | ibm-aix-openssh_advisory10 | Nov 30, 2017 | Jan 4, 2017 | |
| Openbsd Openssh | openbsd-openssh-upgrade-7_4 | Jan 9, 2017 | Jan 4, 2017 | |
| Oracle Solaris | oracle-solaris-11-3-upgrade-network-openssh-7-4-0-1-0-175-3-20-0-3-0 | May 29, 2017 | Jan 4, 2017 | |
| Oracle_linux | — | oracle-linux-upgrade-opensshoracle-linux-upgrade-openssh-askpassoracle-linux-upgrade-openssh-cavsoracle-linux-upgrade-openssh-clientsoracle-linux-upgrade-openssh-keycatoracle-linux-upgrade-openssh-ldaporacle-linux-upgrade-openssh-serveroracle-linux-upgrade-openssh-server-sysvinitoracle-linux-upgrade-pam-ssh-agent-auth | Aug 8, 2017 | Dec 19, 2016 |
| Redhat_linux | — | redhat-upgrade-opensshredhat-upgrade-openssh-askpassredhat-upgrade-openssh-cavsredhat-upgrade-openssh-clientsredhat-upgrade-openssh-debuginforedhat-upgrade-openssh-keycatredhat-upgrade-openssh-ldapredhat-upgrade-openssh-serverredhat-upgrade-openssh-server-sysvinitredhat-upgrade-pam_ssh_agent_auth | Aug 3, 2017 | Jan 4, 2017 |
| Suse | — | suse-upgrade-opensshsuse-upgrade-openssh-askpasssuse-upgrade-openssh-askpass-gnomesuse-upgrade-openssh-clientssuse-upgrade-openssh-commonsuse-upgrade-openssh-fipssuse-upgrade-openssh-helperssuse-upgrade-openssh-openssl1suse-upgrade-openssh-openssl1-helperssuse-upgrade-openssh-server | Jan 24, 2017 | Jan 4, 2017 |
| Ubuntu | ubuntu-upgrade-openssh-server | Jan 24, 2018 | Jan 4, 2017 |
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