Integer overflow in Freerdp
CVE-2023-39350
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. This issue affects Clients only. Integer underflow leading to DOS (e.g. abort due to `WINPR_ASSERT` with default compilation flags). When an insufficient blockLen is provided, and proper length validation is not performed, an Integer Underflow occurs, leading to a Denial of Service (DOS) vulnerability. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.016 (75.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.016 · change: +0.003
Affected products
- Freerdp — versions 3.0.0, < 2.11.0, >= 3.0.0-beta1, < 3.0.0-beta3
- Debian Linux — versions 10.0
- Fedoraproject Fedora — versions 37, 38, 39
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-rrrv-3w42-pffh (Exploit, Vendor Advisory)
- github.com/FreeRDP/FreeRDP/commit/e204fc8be5a372626b13f66daf2abafe71dbc2dc (Patch)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List)
- lists.debian.org/debian-lts-announce/2023/10/msg00008.html (Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202401-16 (Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-39350?
- CVE-2023-39350 is a medium-severity vulnerability in Freerdp, classified under Integer Underflow. CVSS score: 5.9/10. Published 2023-08-31.
- How severe is CVE-2023-39350?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2023-39350 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.