CVE-2020-14346

Description

A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.11%
Vendor Advisory ubuntu.com Vendor Advisory gentoo.org Vendor Advisory x.org
Affected: n/a xorg-x11-server
Published at:
Updated at:

References

Link Tags
https://lists.x.org/archives/xorg-announce/2020-August/003058.html mailing list patch vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1862246 third party advisory issue tracking
https://usn.ubuntu.com/4488-2/ third party advisory vendor advisory
https://security.gentoo.org/glsa/202012-01 third party advisory vendor advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-1417/ third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2020-14346?
CVE-2020-14346 has been scored as a high severity vulnerability.
How to fix CVE-2020-14346?
To fix CVE-2020-14346, 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-2020-14346 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-14346 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-14346?
CVE-2020-14346 affects n/a xorg-x11-server.
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