CVE编号
CVE-2021-20294利用情况
EXP 已公开补丁情况
官方补丁披露时间
2021-04-30漏洞描述
A flaw was found in binutils readelf 2.35 program. An attacker who is able to convince a victim using readelf to read a crafted file could trigger a stack buffer overflow, out-of-bounds write of arbitrary data supplied by the attacker. The highest impact of this flaw is to confidentiality, integrity, and availability.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://bugzilla.redhat.com/show_bug.cgi?id=1943533 | |
| https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db560... | |
| https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61... | |
| https://sourceware.org/bugzilla/show_bug.cgi?id=26929 | |
| https://sourceware.org/git/?p=binutils-gdb.git;a=patch;h=372dd157272e0674d133... |
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 | gnu | binutils | * |
Up to (excluding) 2.35.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_2 | binutils | * |
Up to (excluding) 2.35-21.amzn2.0.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | binutils | * |
Up to (excluding) 2.31.1-16 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | binutils | * |
Up to (excluding) 2.35.2-2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | binutils | * |
Up to (excluding) 2.28-5 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | binutils | * |
Up to (excluding) 2.35.2-2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | binutils | * |
Up to (excluding) 2.37-lp152.4.9.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | binutils | * |
Up to (excluding) 2.37-7.26.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | binutils | * |
Up to (excluding) 2.37-9.44.1 |
|||||
- 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 EXP 已公开
- 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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