high
7.5
CWE
120
Advisory Published
CVE Published
Updated

CVE-2023-40589: FreeRDP Global-Buffer-Overflow in ncrush_decompress

First published: Thu Aug 31 2023(Updated: )

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions there is a Global-Buffer-Overflow in the ncrush_decompress function. Feeding crafted input into this function can trigger the overflow which has only been shown to 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 issue.

Credit: security-advisories@github.com security-advisories@github.com security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
FreeRDP FreeRDP<2.11.0
FreeRDP FreeRDP=3.0.0-beta1
FreeRDP FreeRDP=3.0.0-beta2
Fedoraproject Fedora=37
Fedoraproject Fedora=38
Fedoraproject Fedora=39
Debian Debian Linux=10.0
ubuntu/freerdp2<2.2.0+dfsg1-0ubuntu0.18.04.4+
2.2.0+dfsg1-0ubuntu0.18.04.4+
ubuntu/freerdp2<2.2.0+dfsg1-0ubuntu0.20.04.5
2.2.0+dfsg1-0ubuntu0.20.04.5
ubuntu/freerdp2<2.6.1+dfsg1-3ubuntu2.4
2.6.1+dfsg1-3ubuntu2.4
ubuntu/freerdp2<2.10.0+dfsg1-1ubuntu0.2
2.10.0+dfsg1-1ubuntu0.2
ubuntu/freerdp2<2.10.0+dfsg1-1.1ubuntu1
2.10.0+dfsg1-1.1ubuntu1
ubuntu/freerdp2<2.11.0
2.11.0
redhat/freerdp<2.11.0
2.11.0
redhat/freerdp<3.0.0
3.0.0
debian/freerdp2<=2.3.0+dfsg1-2+deb11u1<=2.10.0+dfsg1-1
2.11.5+dfsg1-1
2.11.7+dfsg1-2

Remedy

https://github.com/FreeRDP/FreeRDP/commit/16141a30f983dd6f7a6e5b0356084171942c9416

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-40589?

    CVE-2023-40589 is a vulnerability in the FreeRDP software that allows a global buffer overflow in the ncrush_decompress function.

  • What is the severity of CVE-2023-40589?

    CVE-2023-40589 has a severity level of 7.5 (high).

  • How does CVE-2023-40589 affect FreeRDP?

    CVE-2023-40589 affects versions of FreeRDP up to and including 2.11.0 and 3.0.0-beta1 and beta2.

  • How can I fix CVE-2023-40589?

    To fix CVE-2023-40589, you should update to at least version 2.11.2+dfsg1-1 of the freerdp2 package.

  • Where can I find more information about CVE-2023-40589?

    You can find more information about CVE-2023-40589 in the official GitHub commit and security advisories for FreeRDP.

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