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libssh before 0.7.3 improperly truncates ephemeral secrets generated for the (1) diffie-hellman-group1 and (2) diffie-hellman-group14 key exchange methods to 128 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes confusion bug."
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade libssh | Aug 30, 2017 | Apr 13, 2016 |
| Debian | — | Upgrade libssh | Feb 23, 2016 | Feb 23, 2016 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | Sep 27, 2016 |
| Freebsd | — | Upgrade libssh | Dec 10, 2025 | Mar 5, 2016 |
| Gentoo Linux | — | Upgrade net-libs/libssh.Upgrade net-libs/libssh2. | Oct 30, 2017 | Apr 13, 2016 |
| Suse | — | Upgrade libssh4-32bitUpgrade libssh2Upgrade libssh4Upgrade libssh-devel-docUpgrade libssh-devel | Mar 1, 2016 | Mar 1, 2016 |
| Ubuntu | — | Upgrade libssh-4 | Feb 23, 2016 | Feb 23, 2016 |
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