CVE编号
CVE-2021-34813利用情况
暂无补丁情况
官方补丁披露时间
2021-06-17漏洞描述
Matrix libolm before 3.2.3 allows a malicious Matrix homeserver to crash a client (while it is attempting to retrieve an Olm encrypted room key backup from the homeserver) because olm_pk_decrypt has a stack-based buffer overflow. Remote code execution might be possible for some nonstandard build configurations.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。
参考链接 |
|
|---|---|
| https://gitlab.matrix.org/matrix-org/olm/-/commit/ccc0d122ee1b4d5e5ca4ec14320... | |
| https://gitlab.matrix.org/matrix-org/olm/-/releases/3.2.3 | |
| https://matrix.org/blog/2021/06/14/adventures-in-fuzzing-libolm |
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 | matrix | olm | * |
Up to (excluding) 3.2.3 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | olm | * |
Up to (excluding) 2.2.2+git20170526.0fd768e+dfsg-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | olm | * |
Up to (excluding) 3.2.1~dfsg-7 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | olm | * |
Up to (excluding) 3.2.7~dfsg-2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | olm | * |
Up to (excluding) 3.2.7~dfsg-2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_EPEL_8 | olm | * |
Up to (excluding) 3.2.4-2.el8 |
|||||
- 攻击路径 远程
- 攻击复杂度 困难
- 权限要求 无需权限
- 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 数据泄露
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
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