CVE-2017-7393

Description

In TigerVNC 1.7.1 (VNCSConnectionST.cxx VNCSConnectionST::fence), an authenticated client can cause a double free, leading to denial of service or potentially code execution.

Category

8.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.52% Top 20%
Vendor Advisory redhat.com Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2017:2000 vendor advisory
http://www.securityfocus.com/bid/97305 vdb entry
https://github.com/TigerVNC/tigervnc/pull/438 patch third party advisory issue tracking
https://security.gentoo.org/glsa/201801-13 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-7393?
CVE-2017-7393 has been scored as a high severity vulnerability.
How to fix CVE-2017-7393?
To fix CVE-2017-7393, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7393 being actively exploited in the wild?
It is possible that CVE-2017-7393 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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