低危 cesnet libyang 未加检查的返回值
CVE编号
CVE-2021-28904利用情况
暂无补丁情况
官方补丁披露时间
2021-05-21漏洞描述
In function ext_get_plugin() in libyang <= v1.0.225, it doesn't check whether the value of revision is NULL. If revision is NULL, the operation of strcmp(revision, ext_plugins[u].revision) will lead to a crash.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://github.com/CESNET/libyang/issues/1451 | |
| https://security.gentoo.org/glsa/202107-54 |
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 | cesnet | libyang | * | Up to (including) 1.0.225 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | libyang | * | Up to (excluding) 1.0.184-r1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | libyang | * | Up to (excluding) 1.0.215-r1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | libyang | * | Up to (excluding) 1.0.215-r1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | libyang | * | Up to (including) 0.16.105-1+deb10u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | libyang | * | Up to (including) 1.0.225-1.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | libyang | * | Up to (including) 1.0.225-1.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | libyang | * | Up to (including) 1.0.225-1.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | libyang-cpp-devel | * | Up to (excluding) 1.0.184-150300.3.6.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.4 | libyang-cpp-devel | * | Up to (excluding) 1.0.184-150300.3.6.1 | |||||
- 攻击路径 远程
- 攻击复杂度 容易
- 权限要求 无需权限
- 影响范围 有限影响
- EXP成熟度 N/A
- 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 DoS
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-252 | 未加检查的返回值 |
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