PT-2020-5649 · Freerdp+4 · Freerdp+4

Akallabeth · Published 2020-06-22 · Updated 2024-06-15 · CVE-2020-4031

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 2.1.2

Description The issue is related to a use-after-free error in the gdi SelectObject component of the FreeRDP protocol implementation. This error occurs when memory is accessed after it has been freed. Exploitation of this issue could allow a remote attacker to cause a denial of service. All FreeRDP clients using compatibility mode with the /relax-order-checks option are affected.

Recommendations For FreeRDP versions prior to 2.1.2, update to version 2.1.2 to resolve the issue. As a temporary workaround, consider disabling the compatibility mode with /relax-order-checks to minimize the risk of exploitation.

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2020-2225

ALT-PU-2020-2232

BDU:2021-01349

CVE-2020-4031

DLA-3606-1

GHSA-GWCQ-HPQ2-M74G

MGASA-2020-0297

OPENSUSE-SU-2020:1090-1

OPENSUSE-SU-2020_1090-1

OPENSUSE-SU-2024:10768-1

SUSE-SU-2020:2032-1

SUSE-SU-2020:2068-1

SUSE-SU-2020:2272-1

USN-4481-1

Affected Products

Alt Linux

Freerdp

Linuxmint

Suse

Ubuntu

References · 168

• https://github.com/FreeRDP/FreeRDP/commit/6d86e20e1e7caaab4f0c7f89e36d32914dbccc52 · Patch
• https://ubuntu.com/security/CVE-2020-11095 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2068-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210611SE16 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2020-0297.html · Security Note
• https://ubuntu.com/security/CVE-2020-11097 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se81-bulletin-20211019SE81 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-4033 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-4031 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/IGSY4CEBOH6TVJLIW53YL7YDGHY3RMPU · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2020-0297 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:1090-1 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-3606-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-01349 · Security Note
• https://ubuntu.com/security/CVE-2020-4030 · Vendor Advisory