CVE-2015-5352 Information

Description

The x11_open_helper function in channels.c in ssh in OpenSSH before 6.9 when ForwardX11Trusted mode is not used lacks a check of the refusal deadline for X connections which makes it easier for remote attackers to bypass intended access restrictions via a connection outside of the permitted time window.

Reference

http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html http://openwall.com/lists/oss-security/2015/07/01/10 http://rhn.redhat.com/errata/RHSA-2016-0741.html http://www.openssh.com/txt/release-6.9 http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html http://www.securityfocus.com/bid/75525 http://www.securitytracker.com/id/1032797 http://www.ubuntu.com/usn/USN-2710-1 http://www.ubuntu.com/usn/USN-2710-2 https://anongit.mindrot.org/openssh.git/commit/?h=V_6_9&id=1bf477d3cdf1a864646d59820878783d42357a1d https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html https://security.gentoo.org/glsa/201512-04 https://security.netapp.com/advisory/ntap-20181023-0001/