中危 gnu inetutils 空指针解引用
CVE编号
CVE-2022-39028利用情况
暂无补丁情况
官方补丁披露时间
2022-08-30漏洞描述
telnetd in GNU Inetutils through 2.3, MIT krb5-appl through 1.0.3, and derivative works has a NULL pointer dereference via 0xff 0xf7 or 0xff 0xf8. In a typical installation, the telnetd application would crash but the telnet service would remain available through inetd. However, if the telnetd application has many crashes within a short time interval, the telnet service would become unavailable after inetd logs a "telnet/tcp server failing (looping), service terminated" error. NOTE: MIT krb5-appl is not supported upstream but is shipped by a few Linux distributions. The affected code was removed from the supported MIT Kerberos 5 (aka krb5) product many years ago, at version 1.8.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 | gnu | inetutils | * | Up to (including) 2.3 | |||||
| 运行在以下环境 | |||||||||
| 应用 | mit | kerberos_5 | * | Up to (including) 1.0.3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | inetutils | * | Up to (excluding) 2:1.9.4-7+deb10u2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | inetutils | * | Up to (excluding) 2:2.0-1+deb11u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | inetutils | * | Up to (excluding) 2:2.3-5 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | inetutils | * | Up to (excluding) 2:2.3-5 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | telnet-server | * | Up to (excluding) 1.2-150000.3.6.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.4 | telnet-server | * | Up to (excluding) 1.2-150000.3.6.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | telnet-server | * | Up to (excluding) 1.0.3-3.9.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | inetutils | * | Up to (excluding) 2:1.9.4-11ubuntu0.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_22.04 | inetutils | * | Up to (excluding) 2:2.2-2ubuntu0.1 | |||||
- 攻击路径 本地
- 攻击复杂度 复杂
- 权限要求 无需权限
- 影响范围 越权影响
- 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
| CWE-ID | 漏洞类型 |
| CWE-476 | 空指针解引用 |
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