Fluid Attacks Database

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.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Package	Affected version	Patched versions
debian 14	openssh	>=0 <1:6.9p1-1	1:6.9p1-1
debian 11	openssh	>=0 <1:6.9p1-1	1:6.9p1-1
debian 13	openssh	>=0 <1:6.9p1-1	1:6.9p1-1
debian 12	openssh	>=0 <1:6.9p1-1	1:6.9p1-1
rpm rhel6	openssh	<0:5.3p1-117.el6	0:5.3p1-117.el6
rpm rhel5	openssh	-	-

Aliases

1. CVE-2015-53522. NVD-2015-53523. OSV-DEBIAN-2015-53524. OSV-2015-53525. SECURITY-TRACKER-CVE-2015-5352

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