中危 未经检查地访问 xrdp 中的字体字形信息 (CVE-2023-42822)
CVE编号
CVE-2023-42822利用情况
暂无补丁情况
官方补丁披露时间
2023-09-28漏洞描述
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.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | neutrinolabs | xrdp | * | Up to (excluding) 0.9.23.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | xrdp | * | Up to (excluding) 0.9.23.1-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | xrdp | * | Up to (excluding) 0.9.23.1-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | xrdp | * | Up to (including) 0.9.9-1+deb10u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | xrdp | * | Up to (including) 0.9.21.1-1~deb11u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | xrdp | * | Up to (including) 0.9.21.1-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | xrdp | * | Up to (including) 0.9.21.1-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_37 | xrdp-debugsource | * | Up to (excluding) 0.9.23.1-1.fc37 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_38 | xrdp-debugsource | * | Up to (excluding) 0.9.23.1-1.fc38 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_39 | xrdp-debugsource | * | Up to (excluding) 0.9.23.1-1.fc39 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_EPEL_7 | xrdp-debuginfo | * | Up to (excluding) 0.9.23.1-1.el7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_EPEL_8 | xrdp-debugsource | * | Up to (excluding) 0.9.23.1-1.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_EPEL_9 | xrdp-debugsource | * | Up to (excluding) 0.9.23.1-1.el9 | |||||
- 攻击路径 本地
- 攻击复杂度 困难
- 权限要求 普通权限
- 影响范围 有限影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 无影响
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-125 | 跨界内存读 |
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