Integer underflow in FreeRDP - CVE-2024-32040

Vulnerability identifier: #VU88847

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-32040

CWE-ID: CWE-191

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer underflow in nsc_rle_decode. A remote attacker can send a specially crafted request to the affected application, trigger integer underflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

FreeRDP
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Micro
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
SUSE Linux Enterprise Workstation Extension 12
Slackware Linux
SUSE Linux Enterprise Desktop 15 SP4 LTSS
SUSE Package Hub 15
openSUSE Leap
openEuler
Ubuntu
Fedora
libfreerdp2-2t64 (Ubuntu package)
libfreerdp-server2-2t64 (Ubuntu package)
libfreerdp-client2-2t64 (Ubuntu package)
freerdp-proxy
freerdp-server
freerdp
freerdp-debugsource
libfreerdp2
freerdp-devel
libwinpr2-debuginfo
winpr2-devel
libwinpr2
freerdp-debuginfo
libfreerdp2-debuginfo
freerdp-wayland
libuwac0-0
freerdp-server-debuginfo
libuwac0-0-debuginfo
freerdp-wayland-debuginfo
freerdp-proxy-debuginfo
uwac0-0-devel
libfreerdp2-2 (Ubuntu package)
libwinpr-devel
freerdp-help
libwinpr
freerdp (Red Hat package)
freerdp2

Install updates from vendor's website.

FreeRDP - addressed in versions 2.11.6, 3.5.0
libfreerdp2-2t64 (Ubuntu package) - update to Ubuntu Pro
libfreerdp-server2-2t64 (Ubuntu package) - update to Ubuntu Pro
libfreerdp-client2-2t64 (Ubuntu package) - update to Ubuntu Pro
freerdp-proxy - addressed in versions 2.1.2-12.44.1, 2.4.0-150400.3.29.1
freerdp-server - addressed in versions 2.1.2-12.44.1, 2.4.0-150400.3.29.1
freerdp - addressed in versions 2.1.2-12.44.1, 2.4.0-150400.3.29.1
freerdp-debugsource - addressed in versions 2.1.2-12.44.1, 2.4.0-150400.3.29.1
libfreerdp2 - addressed in versions 2.1.2-12.44.1, 2.4.0-150400.3.29.1
freerdp-devel - addressed in versions 2.1.2-12.44.1, 2.4.0-150400.3.29.1
libwinpr2-debuginfo - addressed in versions 2.1.2-12.44.1, 2.4.0-150400.3.29.1
winpr2-devel - addressed in versions 2.1.2-12.44.1, 2.4.0-150400.3.29.1
libwinpr2 - addressed in versions 2.1.2-12.44.1, 2.4.0-150400.3.29.1
freerdp-debuginfo - addressed in versions 2.1.2-12.44.1, 2.4.0-150400.3.29.1
libfreerdp2-debuginfo - addressed in versions 2.1.2-12.44.1, 2.4.0-150400.3.29.1
freerdp-wayland - update to 2.4.0-150400.3.29.1
libuwac0-0 - update to 2.4.0-150400.3.29.1
freerdp-server-debuginfo - update to 2.4.0-150400.3.29.1
libuwac0-0-debuginfo - update to 2.4.0-150400.3.29.1
freerdp-wayland-debuginfo - update to 2.4.0-150400.3.29.1
freerdp-proxy-debuginfo - update to 2.4.0-150400.3.29.1
uwac0-0-devel - update to 2.4.0-150400.3.29.1
libfreerdp2-2 (Ubuntu package) - addressed in versions 2.6.1+dfsg1-0ubuntu0.20.04.1, 2.6.1+dfsg1-3ubuntu2.6, 2.10.0+dfsg1-1.1ubuntu1.2
freerdp - addressed in versions 2.11.6, 2.11.7
freerdp - update to 2.11.7-1
freerdp-devel - update to 2.11.7-1
freerdp-debugsource - update to 2.11.7-1
libwinpr-devel - update to 2.11.7-1
freerdp-help - update to 2.11.7-1
libwinpr - update to 2.11.7-1
freerdp-debuginfo - update to 2.11.7-1
freerdp (Red Hat package) - update to 2.11.7-1.el9
freerdp - addressed in versions 2.11.7-1.fc38, 2.11.7-1.fc39, 3.5.0-1.fc40
freerdp2 - update to 2.11.7-1.fc40

• https://github.com/FreeRDP/FreeRDP/releases/tag/2.11.6
• https://github.com/FreeRDP/FreeRDP/releases/tag/3.5.0
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-23c5-cp23-h2h5

• Multiple vulnerabilities in FreeRDP
• Fedora 40 update for freerdp
• Slackware Linux update for freerdp
• Slackware Linux update for freerdp
• Fedora 39 update for freerdp
• Fedora 38 update for freerdp
• Fedora 40 update for freerdp2
• Ubuntu update for freerdp2
• openEuler update for freerdp
• SUSE update for freerdp
• SUSE update for freerdp
• Red Hat Enterprise Linux 9 update for freerdp
• Ubuntu update for freerdp2