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diff --git a/metadata/glsa/glsa-201601-01.xml b/metadata/glsa/glsa-201601-01.xml new file mode 100644 index 000000000000..1b51270b35ed --- /dev/null +++ b/metadata/glsa/glsa-201601-01.xml @@ -0,0 +1,66 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> +<glsa id="201601-01"> + <title>OpenSSH: Multiple vulnerabilities</title> + <synopsis>Multiple vulnerabilities have been found in OpenSSH, allowing + attackers to leak client memory to a server, including private keys. + </synopsis> + <product type="ebuild">openssh</product> + <announced>2016-01-16</announced> + <revised count="1">2016-01-16</revised> + <bug>571892</bug> + <access>remote</access> + <affected> + <package name="net-misc/openssh" auto="yes" arch="*"> + <unaffected range="ge">7.1_p2</unaffected> + <vulnerable range="lt">7.1_p2</vulnerable> + </package> + </affected> + <background> + <p>OpenSSH is a complete SSH protocol implementation that includes SFTP + client and server support. + </p> + </background> + <description> + <p>Qualys have reported two issues in the “roaming” code included in + the OpenSSH client, which provides undocumented, experimental support for + resuming SSH connections. An OpenSSH client could be tricked into leaking + parts of its memory to a malicious server. Furthermore, a buffer overflow + can be exploited by a malicious server, but its exploitation requires + non-default options and is mitigated due to another bug. + </p> + </description> + <impact type="normal"> + <p>A remote attacker could entice a user to connect to a specially crafted + OpenSSH server, possibly resulting in the disclosure of the user’s + private keys. Users with private keys that are not protected by a + passphrase are advised to generate new keys if they have connected to an + SSH server they don’t fully trust. + </p> + + <p>Note that no special configuration is required to be vulnerable as the + roaming feature is enabled by default on the client. + </p> + </impact> + <workaround> + <p>The issues can be worked around by disabling the roaming code. To do so, + add “UseRoaming no” to the SSH client configuration, or specify “-o + ‘UseRoaming no’” on the command line. + </p> + </workaround> + <resolution> + <p>All OpenSSH users should upgrade to the latest version:</p> + + <code> + # emerge --sync + # emerge --ask --oneshot --verbose ">=net-misc/openssh-7.1_p2" + </code> + + </resolution> + <references> + <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-0777">CVE-2016-0777</uri> + <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-0778">CVE-2016-0778</uri> + </references> + <metadata tag="requester" timestamp="2016-01-14T09:15:59Z">a3li</metadata> + <metadata tag="submitter" timestamp="2016-01-16T18:56:11Z">a3li</metadata> +</glsa> |