Unrated severityNVD Advisory· Published Apr 22, 2024· Updated Nov 3, 2025
FreeRDP vulnerable to integer underflow in nsc_rle_decode
CVE-2024-32040
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients that use a version of FreeRDP prior to 3.5.0 or 2.11.6 and have connections to servers using the NSC codec are vulnerable to integer underflow. Versions 3.5.0 and 2.11.6 patch the issue. As a workaround, do not use the NSC codec (e.g. use -nsc).
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Affected products
11- osv-coords9 versionspkg:rpm/opensuse/freerdp2&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/freerdp&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/freerdp&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/freerdp&distro=openSUSE%20Tumbleweedpkg:rpm/rocky-linux/freerdp?distro=rocky-linux-9&epoch=2pkg:rpm/suse/freerdp&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP5pkg:rpm/suse/freerdp&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/freerdp&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP5pkg:rpm/suse/freerdp&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP5
< 2.11.7-1.1+ 8 more
- (no CPE)range: < 2.11.7-1.1
- (no CPE)range: < 2.4.0-150400.3.29.1
- (no CPE)range: < 3.22.0-160000.1.1
- (no CPE)range: < 3.5.1-1.1
- (no CPE)range: < 2:2.11.7-1.el9
- (no CPE)range: < 2.4.0-150400.3.29.1
- (no CPE)range: < 2.1.2-12.44.1
- (no CPE)range: < 2.1.2-12.44.1
- (no CPE)range: < 2.4.0-150400.3.29.1
Patches
Vulnerability mechanics
References
8- github.com/FreeRDP/FreeRDP/pull/10077mitrex_refsource_MISC
- github.com/FreeRDP/FreeRDP/releases/tag/2.11.6mitrex_refsource_MISC
- github.com/FreeRDP/FreeRDP/releases/tag/3.5.0mitrex_refsource_MISC
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-23c5-cp23-h2h5mitrex_refsource_CONFIRM
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5JL476WVJSIE7SBUKVJRVA6A52V2HOLZ/mitre
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7SIS6NUNLUBOV4CPCSWKDE6T6C2W3WTR/mitre
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PX3U6YPZQ7PEJBVKSBUOLWVH7DHROHY5/mitre
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKI4UISUXYNBPN4K6TIQKDRTIJ6CDCKJ/mitre
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