PT-2023-4667 · Freerdp · Freerdp

Pwn2Carr · CVE-2023-39355 · Published 2023-07-28 · Updated 2025-02-15

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

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

Description The issue is related to a Use-After-Free in processing RDPGFX CMDID RESETGRAPHICS packets. If context->maxPlaneSize is 0, context->planesBuffer will be freed, but without updating context->planesBuffer, this leads to a Use-After-Free exploit vector. In most environments, this should only result in a crash.

Recommendations For FreeRDP versions prior to 3.0.0-beta3, upgrade to version 3.0.0-beta3 or later to address the issue. As a temporary workaround, consider restricting access to the RDPGFX CMDID RESETGRAPHICS packet processing functionality until a patch is available. However, since this issue has been addressed in version 3.0.0-beta3, the best course of action is to upgrade to this version or later.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2023-05080

CVE-2023-39355

DLA-3606-1

DLA-4053-1

GHSA-HVWJ-VMG6-2F5H

Affected Products

Freerdp

References · 17

• 🔥 https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hvwj-vmg6-2f5h · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/39xxx/CVE-2023-39355.json · Exploit
• https://github.com/FreeRDP/FreeRDP/commit/d6f9d33a7db0b346195b6a15b5b99944ba41beee · Patch
• https://cve.org/CVERecord?id=CVE-2023-39355 · Security Note
• https://osv.dev/vulnerability/DLA-3606-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-05080 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-39355 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-39355 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-39355 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-39355 · Security Note
• https://osv.dev/vulnerability/DLA-4053-1 · Vendor Advisory
• https://vuldb.com/?id.238508 · Note
• https://security.gentoo.org/glsa/202401-16 · Note
• https://xn--80ahaefyxhn.xn--j1afgaq.xn--p1ai/bin/view/%D0%9E%D0%A1%D0%BD%D0%BE%D0%B2%D0%B0/%D0%9E%D0%B1%D0%BD%D0%BE%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F/2.11 · Note
• https://t.me/cibsecurity/69607 · Telegram Post