PT-2023-4662 · Freerdp+2 · Freerdp+2

Pwn2Carr · Published 2023-08-31 · Updated 2026-03-10 · CVE-2023-40574

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.0.0-beta3

Description The issue is related to an Out-Of-Bounds Write in the writePixelBGRX function of the FreeRDP client, which is caused by incorrect calculations of the nHeight and srcStep variables. This can allow a remote attacker to cause a denial of service.

Recommendations For versions prior to 3.0.0-beta3, upgrade to version 3.0.0-beta3 or later to resolve the issue. As a temporary workaround, consider restricting access to the writePixelBGRX function until a patch is applied. However, since an upgrade is available, this should be the preferred course of action.

Exploit

Fix

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2023-05075

CVE-2023-40574

GHSA-422P-GJ6X-93CW

OPENSUSE-SU-2023_4893-1

OPENSUSE-SU-2024:13815-1

OPENSUSE-SU-2024:13816-1

OPENSUSE-SU-2026:20339-1

SUSE-SU-2023:4611-1

SUSE-SU-2023:4893-1

Affected Products

Freerdp

Red Os

Suse

References · 124

• 🔥 https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-422p-gj6x-93cw · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40574.json · Exploit
• https://osv.dev/vulnerability/openSUSE-SU-2024:13815-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-40574 · Security Note
• https://cve.org/CVERecord?id=CVE-2023-40574 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-40574 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:4611-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-40574 · Vendor Advisory
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-05075 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:20339-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:4893-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:13816-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-40574 · Vendor Advisory
• https://github.com/FreeRDP/FreeRDP/blob/5be5553e0da72178a4b94cc1ffbdace9ceb153e5/libfreerdp/primitives/prim_YUV.c#L414-L445 · Note