CVE-2022-39317

Out of bounds read in zgfx decoder in FreeRDP

Description

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing a range check for input offset index in ZGFX decoder. A malicious server can trick a FreeRDP based client to read out of bound data and try to decode it. This issue has been addressed in version 2.9.0. There are no known workarounds for this issue.

Category

4.6
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org
Affected: FreeRDP FreeRDP
Published at:
Updated at:

References

Link Tags
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-99cm-4gw7-c8jh third party advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UDOTAOJBCZKREZJPT6VZ25GESI5T6RBG/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YGQN3OWQNHSMWKOF4D35PF5ASKNLC74B/ vendor advisory
https://security.gentoo.org/glsa/202401-16 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-39317?
CVE-2022-39317 has been scored as a medium severity vulnerability.
How to fix CVE-2022-39317?
To fix CVE-2022-39317, 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-2022-39317 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-39317 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-2022-39317?
CVE-2022-39317 affects FreeRDP FreeRDP.
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