NULL pointer dereference in FreeRDP - CVE-2024-32661

Vulnerability identifier: #VU88947

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-32661

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in rdp_write_logon_info_v1. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

FreeRDP
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
SUSE Linux Enterprise Workstation Extension 12
SUSE Package Hub 15
openSUSE Leap
openEuler
Ubuntu
libfreerdp2-2t64 (Ubuntu package)
libfreerdp-server2-2t64 (Ubuntu package)
libfreerdp-client2-2t64 (Ubuntu package)
freerdp-debugsource
freerdp-proxy
freerdp
freerdp-server
libfreerdp2-debuginfo
libfreerdp2
freerdp-devel
libwinpr2
libwinpr2-debuginfo
freerdp-debuginfo
winpr2-devel
libfreerdp2-2 (Ubuntu package)
freerdp-wayland-debuginfo
libuwac0-0
libwinpr2-2
uwac0-0-devel
libfreerdp2-2-debuginfo
winpr-devel
freerdp-server-debuginfo
freerdp-proxy-debuginfo
libuwac0-0-debuginfo
freerdp-wayland
libfreerdp2-2
libwinpr2-2-debuginfo
freerdp (Red Hat package)
freerdp-help
libwinpr-devel
libwinpr
libfreerdp3-3 (Ubuntu package)

Install updates from vendor's website.

FreeRDP - update to 3.5.1
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-debugsource - addressed in versions 2.1.2-12.47.1, 2.11.2-150600.4.3.1
freerdp-proxy - addressed in versions 2.1.2-12.47.1, 2.11.2-150600.4.3.1
freerdp - addressed in versions 2.1.2-12.47.1, 2.11.2-150600.4.3.1
freerdp-server - addressed in versions 2.1.2-12.47.1, 2.11.2-150600.4.3.1
libfreerdp2-debuginfo - update to 2.1.2-12.47.1
libfreerdp2 - update to 2.1.2-12.47.1
freerdp-devel - addressed in versions 2.1.2-12.47.1, 2.11.2-150600.4.3.1
libwinpr2 - update to 2.1.2-12.47.1
libwinpr2-debuginfo - update to 2.1.2-12.47.1
freerdp-debuginfo - addressed in versions 2.1.2-12.47.1, 2.11.2-150600.4.3.1
winpr2-devel - update to 2.1.2-12.47.1
libfreerdp2-2 (Ubuntu package) - addressed in versions 2.6.1+dfsg1-0ubuntu0.20.04.2, 2.6.1+dfsg1-3ubuntu2.7, 2.10.0+dfsg1-1.1ubuntu1.3
freerdp-wayland-debuginfo - update to 2.11.2-150600.4.3.1
libuwac0-0 - update to 2.11.2-150600.4.3.1
libwinpr2-2 - update to 2.11.2-150600.4.3.1
uwac0-0-devel - update to 2.11.2-150600.4.3.1
libfreerdp2-2-debuginfo - update to 2.11.2-150600.4.3.1
winpr-devel - update to 2.11.2-150600.4.3.1
freerdp-server-debuginfo - update to 2.11.2-150600.4.3.1
freerdp-proxy-debuginfo - update to 2.11.2-150600.4.3.1
libuwac0-0-debuginfo - update to 2.11.2-150600.4.3.1
freerdp-wayland - update to 2.11.2-150600.4.3.1
libfreerdp2-2 - update to 2.11.2-150600.4.3.1
libwinpr2-2-debuginfo - update to 2.11.2-150600.4.3.1
freerdp (Red Hat package) - update to 2.11.7-1.el9
freerdp-debugsource - update to 2.11.7-2
freerdp-help - update to 2.11.7-2
freerdp-devel - update to 2.11.7-2
libwinpr-devel - update to 2.11.7-2
libwinpr - update to 2.11.7-2
freerdp-debuginfo - update to 2.11.7-2
freerdp - update to 2.11.7-2
libfreerdp3-3 (Ubuntu package) - update to 3.5.1+dfsg1-0ubuntu1

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-p5m5-342g-pv9m
• https://github.com/FreeRDP/FreeRDP/commit/71e463e31b4d69f4022d36bfc814592f56600793

• Multiple vulnerabilities in FreeRDP
• Ubuntu update for freerdp2
• Ubuntu update for freerdp3
• openEuler update for freerdp
• openEuler 20.03 LTS SP4 update for freerdp
• SUSE update for freerdp
• SUSE update for freerdp
• Red Hat Enterprise Linux 9 update for freerdp
• Ubuntu update for freerdp2