中危 php php 空指针解引用
CVE编号
CVE-2021-21702利用情况
暂无补丁情况
N/A披露时间
2021-02-15漏洞描述
In PHP versions 7.3.x below 7.3.27, 7.4.x below 7.4.15 and 8.0.x below 8.0.2, when using SOAP extension to connect to a SOAP server, a malicious SOAP server could return malformed XML data as a response that would cause PHP to access a null pointer and thus cause 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。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 | php | php | * | From (including) 7.3.0 | Up to (excluding) 7.3.27 | ||||
| 运行在以下环境 | |||||||||
| 应用 | php | php | * | From (including) 7.4.0 | Up to (excluding) 7.4.15 | ||||
| 运行在以下环境 | |||||||||
| 应用 | php | php | * | From (including) 8.0.0 | Up to (excluding) 8.0.2 | ||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | php7 | * | Up to (excluding) 7.3.27-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | php7 | * | Up to (excluding) 8.0.2-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | php7 | * | Up to (excluding) 8.0.2-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | php7 | * | Up to (excluding) 8.0.2-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | php8 | * | Up to (excluding) 8.0.2-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | php8 | * | Up to (excluding) 8.0.2-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | php7.3 | * | Up to (excluding) 7.3.27-1~deb10u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | php7.4 | * | Up to (excluding) 7.4.15-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | php7.0 | * | Up to (excluding) 7.0.33-0+deb9u11 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | php8.0 | * | Up to (including) 8.0.1-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_32 | php-gmp-debuginfo | * | Up to (excluding) 7.4.15-1.fc32 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | php-gmp-debuginfo | * | Up to (excluding) 7.4.15-1.fc33 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | php7-sysvmsg | * | Up to (excluding) 7.4.6-lp152.2.15.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | php7-sysvmsg | * | Up to (excluding) 7.4.33-150200.3.46.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.4 | php7-wddx | * | Up to (excluding) 7.4.33-150200.3.46.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | oraclelinux-release | * | Up to (excluding) 7.4.19-1.module+el8.5.0+20354+db97279a | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | php7.2 | * | Up to (excluding) 7.2.24-0ubuntu0.18.04.8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | php7.2 | * | Up to (excluding) 7.2.24-0ubuntu0.18.04.8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | php7.4 | * | Up to (excluding) 7.4.3-4ubuntu2.5 | |||||
| 运行在以下环境 | |||||||||
| 系统 | unionos_d | php7.3 | * | Up to (excluding) 7.3.31.1-1+dde | |||||
- 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 全局影响
- EXP成熟度 N/A
- 补丁情况 N/A
- 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-476 | 空指针解引用 |
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