CVE-2019-11922

Description

A race condition in the one-pass compression functions of Zstandard prior to version 1.3.8 could allow an attacker to write bytes out of bounds if an output buffer smaller than the recommended size was used.

Category

8.1
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.65%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory facebook.com
Affected: Facebook Zstandard
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00008.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00062.html vendor advisory
https://usn.ubuntu.com/4108-1/ vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00078.html vendor advisory
https://www.oracle.com/security-alerts/cpuoct2020.html
https://www.facebook.com/security/advisories/cve-2019-11922 vendor advisory
https://github.com/facebook/zstd/pull/1404/commits/3e5cdf1b6a85843e991d7d10f6a2567c15580da0 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2019-11922?
CVE-2019-11922 has been scored as a high severity vulnerability.
How to fix CVE-2019-11922?
To fix CVE-2019-11922, 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-2019-11922 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-11922 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-11922?
CVE-2019-11922 affects Facebook Zstandard.
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