Unchecked access to font glyph info in xrdp
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Debian DEBIAN-CVE-2023-42822 xrdp 修正版: 0.9.21.1-1~deb11u2
- Ubuntu UBUNTU-CVE-2023-42822 xrdp 修正版: 0.6.0-1ubuntu0.1+esm3
原文の説明 取得元が公開している説明をそのまま載せています (多くは英語)。
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.
出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
参照URL
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- web lists.debian.org
- web lists.fedoraproject.org
- web lists.fedoraproject.org
- web lists.fedoraproject.org