中危 lighttpd lighttpd 在移除最后引用时对内存的释放不恰当（内存泄露）
CVE编号
CVE-2022-41556利用情况
暂无补丁情况
官方补丁披露时间
2022-10-07漏洞描述
A resource leak in gw_backend.c in lighttpd 1.4.56 through 1.4.66 could lead to a denial of service (connection-slot exhaustion) after a large amount of anomalous TCP behavior by clients. It is related to RDHUP mishandling in certain HTTP/1.1 chunked situations. Use of mod_fastcgi is, for example, affected. This is fixed in 1.4.67.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 | lighttpd | lighttpd | * | From (including) 1.4.56 | Up to (excluding) 1.4.67 | ||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | lighttpd | * | Up to (excluding) 1.4.67-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | lighttpd | * | Up to (excluding) 1.4.67-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | lighttpd | * | Up to (excluding) 1.4.67-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | lighttpd | * | Up to (excluding) 1.4.67-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | lighttpd | * | Up to (excluding) 1.4.67-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | lighttpd | * | Up to (excluding) 1.4.53-4+deb10u2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | lighttpd | * | Up to (excluding) 1.4.59-1+deb11u2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | lighttpd | * | Up to (excluding) 1.4.67-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | lighttpd | * | Up to (excluding) 1.4.67-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_35 | lighttpd-mod_magnet-debuginfo | * | Up to (excluding) 1.4.67-1.fc35 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_EPEL_8 | lighttpd-mod_magnet-debuginfo | * | Up to (excluding) 1.4.67-1.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | lighttpd-mod_vhostdb_dbi | * | Up to (excluding) 1.4.67-bp154.2.6.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.4 | lighttpd-mod_vhostdb_dbi | * | Up to (excluding) 1.4.67-bp154.2.6.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_22.04 | lighttpd | * | Up to (excluding) 1.4.63-1ubuntu3.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_22.10 | lighttpd | * | Up to (excluding) 1.4.65-2ubuntu1.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | unionos_e | lighttpd | * | Up to (excluding) lighttpd-1.4.67-1.uel20 | |||||
- 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-401 | 在移除最后引用时对内存的释放不恰当（内存泄露） |
Exp相关链接
版权声明
本站原创文章转载请注明文章出处及链接，谢谢合作！
评论