Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openbsd | Openssh | <= 6.8 |
Related Weaknesses (CWE)
References
- 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-6.9Vendor Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.h
- 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=1bf477d3cdf1a864646d5
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- 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/
FAQ
What is CVE-2015-5352?
CVE-2015-5352 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 rem...
How severe is CVE-2015-5352?
CVE-2015-5352 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-5352?
Check the references section above for vendor advisories and patch information. Affected products include: Openbsd Openssh.