中危 Squid 资源管理错误漏洞（CVE-2021-46784）

CVE编号

CVE-2021-46784

利用情况

暂无

补丁情况

官方补丁

披露时间

2022-07-18

漏洞描述

Squid是一套代理服务器和Web缓存服务器软件。该软件提供缓存万维网、过滤流量、代理上网等功能。 Squid 多个版本存在安全漏洞，该漏洞源于应用存在处理 Gopher 服务器响应时的可访问断言。

解决建议

目前厂商已发布升级补丁以修复漏洞，补丁获取链接：http://github.com/squid-cache/squid/security/advisories/GHSA-f5cp-6rh3-284w/

参考链接
http://www.openwall.com/lists/oss-security/2023/10/13/1
http://www.openwall.com/lists/oss-security/2023/10/13/10
http://www.openwall.com/lists/oss-security/2023/10/21/1
http://www.squid-cache.org/Versions/v4/changesets/SQUID-2021_7.patch
http://www.squid-cache.org/Versions/v5/changesets/SQUID-2021_7.patch
https://github.com/squid-cache/squid/commit/5e2ea2b13bd98f53e29964ca26bb0d602a8a12b9
https://github.com/squid-cache/squid/security/advisories/GHSA-f5cp-6rh3-284w
https://security-tracker.debian.org/tracker/CVE-2021-46784
https://security.netapp.com/advisory/ntap-20221223-0007/

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	squid-cache	squid	*	From (including) 3.0	Up to (including) 3.5.28
	运行在以下环境
	应用	squid-cache	squid	*	From (including) 4.0	Up to (including) 4.17
	运行在以下环境
	应用	squid-cache	squid	*	From (including) 5.0	Up to (excluding) 5.6
	运行在以下环境
	系统	alibaba_cloud_linux_2.1903	squid-migration-script	*		Up to (excluding) 3.5.20-17.1.al7.7
	运行在以下环境
	系统	amazon_2	squid	*		Up to (excluding) 3.5.20-17.amzn2.7.1
	运行在以下环境
	系统	amazon_AMI	squid	*		Up to (excluding) 3.5.20-17.43.amzn1
	运行在以下环境
	系统	anolis_os_7	squid-migration-script	*		Up to (excluding) 3.5.20-17
	运行在以下环境
	系统	anolis_os_8	squid	*		Up to (excluding) 4.15-3
	运行在以下环境
	系统	centos_7	squid	*		Up to (excluding) 3.5.20-17.el7_9.7
	运行在以下环境
	系统	debian_10	squid	*		Up to (excluding) 4.6-1+deb10u7
	运行在以下环境
	系统	debian_11	squid	*		Up to (excluding) 4.13-10+deb11u1
	运行在以下环境
	系统	debian_12	squid	*		Up to (excluding) 5.6-1
	运行在以下环境
	系统	debian_9	squid3	*		Up to (including) 3.5.23-5+deb9u1
	运行在以下环境
	系统	debian_sid	squid	*		Up to (excluding) 5.6-1
	运行在以下环境
	系统	fedora_35	squid-debuginfo	*		Up to (excluding) 5.6-1.fc35
	运行在以下环境
	系统	fedora_36	squid-debuginfo	*		Up to (excluding) 5.6-1.fc36
	运行在以下环境
	系统	kylinos_aarch64_V10	squid	*		Up to (excluding) 3.5.20-17.el7_9.7
	运行在以下环境
	系统	kylinos_aarch64_V10SP1	squid	*		Up to (excluding) 4.9-13.ky10
	运行在以下环境
	系统	kylinos_aarch64_V10SP2	squid	*		Up to (excluding) 4.9-13.ky10
	运行在以下环境
	系统	kylinos_loongarch64_V10SP1	squid	*		Up to (excluding) 4.9-11.a.ky10
	运行在以下环境
	系统	kylinos_x86_64_V10	squid	*		Up to (excluding) 3.5.20-17.el7_9.7
	运行在以下环境
	系统	kylinos_x86_64_V10SP1	squid	*		Up to (excluding) 4.9-13.ky10
	运行在以下环境
	系统	kylinos_x86_64_V10SP2	squid	*		Up to (excluding) 4.9-13.ky10
	运行在以下环境
	系统	opensuse_Leap_15.3	squid	*		Up to (excluding) 4.17-150000.5.32.1
	运行在以下环境
	系统	opensuse_Leap_15.4	squid	*		Up to (excluding) 5.6-150400.3.3.1
	运行在以下环境
	系统	oracle_7	oraclelinux-release	*		Up to (excluding) 3.5.20-17.0.1.el7_9.7
	运行在以下环境
	系统	oracle_8	oraclelinux-release	*		Up to (excluding) 4.15-3.module+el8.6.0+20699+8fa0a254.1
	运行在以下环境
	系统	oracle_9	oraclelinux-release	*		Up to (excluding) 5.2-1.el9_0.1
	运行在以下环境
	系统	redhat_7	squid	*		Up to (excluding) 3.5.20-17.el7_9.7
	运行在以下环境
	系统	redhat_9	squid	*		Up to (excluding) 5.2-1.el9_0.1
	运行在以下环境
	系统	suse_12_SP5	squid	*		Up to (excluding) 4.17-4.24.1
	运行在以下环境
系统	ubuntu_18.04	squid3	*		Up to (excluding) 3.5.27-1ubuntu1.13
运行在以下环境
系统	ubuntu_20.04	squid	*		Up to (excluding) 4.10-1ubuntu1.6
运行在以下环境
系统	ubuntu_21.10	squid	*		Up to (excluding) 4.13-10ubuntu5.1
运行在以下环境
系统	ubuntu_22.04	squid	*		Up to (excluding) 5.2-1ubuntu4.1
运行在以下环境
系统	ubuntu_22.10	squid	*		Up to (excluding) 5.2-1ubuntu5
运行在以下环境
系统	unionos_d	squid	*		Up to (excluding) 4.6.6-1+dde

阿里云评分 5.5

• 攻击路径 远程
• 攻击复杂度 复杂
• 权限要求 无需权限
• 影响范围 有限影响
• EXP成熟度 未验证
• 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 无影响
• 全网数量 N/A

CWE-ID	漏洞类型
CWE-400	未加控制的资源消耗（资源穷尽）
CWE-617	可达断言

Exp相关链接

- avd.aliyun.com