CVE-2023-42822 (GCVE-0-2023-42822)
Vulnerability from cvelistv5 – Published: 2023-09-27 17:55 – Updated: 2025-11-03 19:28
VLAI
EPSS
VEX
Title
Unchecked access to font glyph info in xrdp
Summary
xrdp is an open source remote desktop protocol server. Access to the font glyphs in xrdp_painter.c is not bounds-checked . Since some of this data is controllable by the user, this can result in an out-of-bounds read within the xrdp executable. The vulnerability allows an out-of-bounds read within a potentially privileged process. On non-Debian platforms, xrdp tends to run as root. Potentially an out-of-bounds write can follow the out-of-bounds read. There is no denial-of-service impact, providing xrdp is running in forking mode. This issue has been addressed in release 0.9.23.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Severity
4.6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-23 14:30 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
GitHub_M
CNA
References
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| neutrinolabs | xrdp |
Affected:
< 0.9.23.1
|
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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