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The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade openssh | Aug 30, 2017 | Nov 8, 2013 |
| Debian | — | Upgrade openssh | Jul 30, 2024 | Nov 8, 2013 |
| Hpux | — | Update Secure_Shell.SECSH-CMN to the latest versionUpdate Secure_Shell.SECURE_SHELL to the latest version | Aug 11, 2017 | Nov 8, 2013 |
| Ibm Aix | — | Apply the fix or workaround for openssh_advisory3 | Nov 30, 2017 | Nov 8, 2013 |
| Openbsd Openssh | — | Upgrade to OpenSSH version 6.4 | Nov 15, 2013 | Nov 8, 2013 |
| Suse | — | Upgrade opensshUpgrade openssh-askpass-gnome | Feb 17, 2015 | Nov 8, 2013 |
| Ubuntu | — | Upgrade openssh-server | Nov 8, 2024 | Nov 8, 2013 |
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