<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="201810-03"> <title>OpenSSH: User enumeration vulnerability</title> <synopsis>A vulnerability in OpenSSH might allow remote attackers to determine valid usernames. </synopsis> <product type="ebuild">openssh</product> <announced>2018-10-06</announced> <revised count="1">2018-10-06</revised> <bug>664264</bug> <access>remote</access> <affected> <package name="net-misc/openssh" auto="yes" arch="*"> <unaffected range="ge">7.7_p1-r8</unaffected> <vulnerable range="lt">7.7_p1-r8</vulnerable> </package> </affected> <background> <p>OpenSSH is a complete SSH protocol implementation that includes SFTP client and server support. </p> </background> <description> <p>It was discovered that OpenSSH was prone to a user enumeration vulnerability. </p> </description> <impact type="low"> <p>A remote attacker could conduct user enumeration.</p> </impact> <workaround> <p>There is no known workaround at this time.</p> </workaround> <resolution> <p>All OpenSSH users should upgrade to the latest version:</p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/openssh-7.7_p1-r8" </code> </resolution> <references> <uri link="https://nvd.nist.gov/vuln/detail/CVE-2018-15473">CVE-2018-15473</uri> </references> <metadata tag="requester" timestamp="2018-08-23T00:18:32Z">whissi</metadata> <metadata tag="submitter" timestamp="2018-10-06T17:02:32Z">whissi</metadata> </glsa>