Out-of-bounds Read in Freerdp
CVE-2023-40181
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Integer-Underflow leading to Out-Of-Bound Read in the `zgfx_decompress_segment` function. In the context of `CopyMemory`, it's possible to read data beyond the transmitted packet range and likely cause a crash. 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 issue.
Vulnerability class: Buffer Overflow
EPSS: 0.014 (70.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Freerdp — versions 3.0.0, < 2.11.0, >= 3.0.0-beta1, < 3.0.0-beta3
- Debian Debian_linux — versions 10.0
- Fedoraproject Fedora — versions 37, 38, 39
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Mailing List)
- security-advisories@github.com (Mailing List)
- security-advisories@github.com (Mailing List)
- security-advisories@github.com (Mailing List, Third Party Advisory)
- security-advisories@github.com
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-40181?
- CVE-2023-40181 is a medium-severity vulnerability in Freerdp, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2023-08-31.
- How severe is CVE-2023-40181?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2023-40181 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.