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Debian Security Advisory DSA-4280-1                   security@debian.org
https://www.debian.org/security/                       Sebastien Delafond
August 22, 2018                       https://www.debian.org/security/faq
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Package        : openssh
CVE ID         : CVE-2018-15473
Debian Bug     : 906236

Dariusz Tytko, Michal Sajdak and Qualys Security discovered that
OpenSSH, an implementation of the SSH protocol suite, was prone to a
user enumeration vulnerability. This would allow a remote attacker to
check whether a specific user account existed on the target server.

For the stable distribution (stretch), this problem has been fixed in
version 1:7.4p1-10+deb9u4.

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/source-package/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