Out-of-bounds Read in Freerdp
CVE-2022-39317
FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing a range check for input offset index in ZGFX decoder. A malicious server can trick a FreeRDP based client to read out of bound data and try to decode it. This issue has been addressed in version 2.9.0. There are no known workarounds for this issue.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.007 (50.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.000
Affected products
- Freerdp — versions < 2.9.0
- Fedoraproject Fedora — versions 36, 37
Weakness classification (CWE)
References
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-99cm-4gw7-c8jh (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202401-16 (vendor-advisory)
Frequently asked questions
- What is CVE-2022-39317?
- CVE-2022-39317 is a medium-severity vulnerability in Freerdp, classified under Out-of-bounds Read. CVSS score: 4.6/10. Published 2022-11-16.
- How severe is CVE-2022-39317?
- Medium severity. CVSS v3 base score is 4.6 out of 10.