CVE-2023-40569 Out-Of-Bounds Write in FreeRDP

What is CVE-2023-40569?

CVE-2023-40569 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 31 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Out-Of-Bounds Write in the `progressive_decompress` function. This issue is likely down to incorrect calculations of the `nXSrc` and `nYSrc` variables. 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.

Weakness: CWE-787

Which versions are affected by CVE-2023-40569?

It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Freerdp Freerdp.

How do I fix CVE-2023-40569?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-40569 being exploited?

There is no known exploitation of CVE-2023-40569 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2023-40569, GHSA-hm8c-rcjg-c8qp, UBUNTU-CVE-2023-40569.