CVE-2023-39353

Public Exploit
Missing offset validation leading to Out Of Bound Read in FreeRDP

Description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to a missing offset validation leading to Out Of Bound Read. In the `libfreerdp/codec/rfx.c` file there is no offset validation in `tile->quantIdxY`, `tile->quantIdxCb`, and `tile->quantIdxCr`. As a result crafted input can lead to an out of bounds read access which in turn will cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.06%
Vendor Advisory github.com
Affected: FreeRDP FreeRDP
Published at:
Updated at:

References

Link Tags
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hg53-9j9h-3c8f vendor advisory exploit
https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/codec/rfx.c#L994-L996 issue tracking
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OH2ATH2BKDNKCJAU4WPPXK4SHLE3UJUV/ mailing list
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A6LLDAPEXRDJOM3PREDDD267SSNT77DP/ mailing list
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IHMTGKCZXJPQOR5ZD2I4GPDNP2DKRXMF/ mailing list
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html third party advisory mailing list
https://security.gentoo.org/glsa/202401-16

Frequently Asked Questions

What is the severity of CVE-2023-39353?
CVE-2023-39353 has been scored as a medium severity vulnerability.
How to fix CVE-2023-39353?
To fix CVE-2023-39353, 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-2023-39353 being actively exploited in the wild?
It is possible that CVE-2023-39353 is being exploited or will be exploited in a near future based on public information. 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-2023-39353?
CVE-2023-39353 affects FreeRDP FreeRDP.
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