|Category:||Red Hat Local Security Checks|
|Title:||RedHat Update for openssh RHSA-2017:2029-01|
|Summary:||The remote host is missing an update for the 'openssh'; package(s) announced via the referenced advisory.|
The remote host is missing an update for the 'openssh'
package(s) announced via the referenced advisory.
OpenSSH is an SSH protocol implementation
supported by a number of Linux, UNIX, and similar operating systems. It includes
the core files necessary for both the OpenSSH client and server. The following
packages have been upgraded to a later upstream version: openssh (7.4p1).
(BZ#1341754) Security Fix(es): * A covert timing channel flaw was found in the
way OpenSSH handled authentication of non-existent users. A remote
unauthenticated attacker could possibly use this flaw to determine valid user
names by measuring the timing of server responses. (CVE-2016-6210) * It was
found that OpenSSH did not limit password lengths for password authentication. A
remote unauthenticated attacker could use this flaw to temporarily trigger high
CPU consumption in sshd by sending long passwords. (CVE-2016-6515) * It was
found that ssh-agent could load PKCS#11 modules from arbitrary paths. An
attacker having control of the forwarded agent-socket on the server, and the
ability to write to the filesystem of the client host, could use this flaw to
execute arbitrary code with the privileges of the user running ssh-agent.
(CVE-2016-10009) * It was found that the host private key material could
possibly leak to the privilege-separated child processes via re-allocated
memory. An attacker able to compromise the privilege-separated process could
therefore obtain the leaked key information. (CVE-2016-10011) * It was found
that the boundary checks in the code implementing support for pre-authentication
compression could have been optimized out by certain compilers. An attacker able
to compromise the privilege-separated process could possibly use this flaw for
further attacks against the privileged monitor process. (CVE-2016-10012)
Additional Changes: For detailed information on changes in this release, see the
Red Hat Enterprise Linux 7.4 Release Notes linked from the References section.
openssh on Red Hat Enterprise Linux Server (v. 7)
Please Install the Updated Packages.
Common Vulnerability Exposure (CVE) ID: CVE-2016-6210|
BugTraq ID: 91812
Debian Security Information: DSA-3626 (Google Search)
RedHat Security Advisories: RHSA-2017:2029
RedHat Security Advisories: RHSA-2017:2563
Common Vulnerability Exposure (CVE) ID: CVE-2016-6515
BugTraq ID: 92212
FreeBSD Security Advisory: FreeBSD-SA-17:06
|Copyright||Copyright (C) 2017 Greenbone Networks GmbH|
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