Home / mailings [SECURITY] [DSA 5868-1] openssh security update
Posted on 18 February 2025
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-5868-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
February 18, 2025 https://www.debian.org/security/faq
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Package : openssh
CVE ID : CVE-2025-26465
The Qualys Threat Research Unit (TRU) discovered that the OpenSSH client
is vulnerable to a machine-in-the-middle attack if the VerifyHostKeyDNS
option is enabled (disabled by default).
Details can be found in the Qualys advisory at
https://www.qualys.com/2025/02/18/openssh-mitm-dos.txt
For the stable distribution (bookworm), this problem has been fixed in
version 1:9.2p1-2+deb12u5.
We recommend that you upgrade your openssh packages.
For the detailed security status of openssh please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/openssh
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org