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CVE-2019-12529

Quick assessment

Affected

n/a n/a

Exploitation

High exploitation probability; assess promptly

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 2.x版本至2.7.STABLE9版本、3.x版本至3.5.28版本和4.x版本至4.7版本中存在缓冲区错误漏洞。该漏洞源于网络系统或产品在运行过程中存在配置等错误。未授权的攻击者可利用漏洞获取受影响组件敏感信息。

AI Predicted 5.3 Difficulty: Moderate EPSS 8.09% · P94 Updated Feb 21, 2026

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I. Basic Information for CVE-2019-12529

Vulnerability Information

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Vulnerability Title

N/A

Source: CVE Program / CVE List V5

Vulnerability Description

An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode. uudecode determines how many bytes will be decoded by iterating over the input and checking its table. The length is then used to start decoding the string. There are no checks to ensure that the length it calculates isn't greater than the input buffer. This leads to adjacent memory being decoded as well. An attacker would not be able to retrieve the decoded data unless the Squid maintainer had configured the display of usernames on error pages.

Source: CVE Program / CVE List V5

CVSS Information

N/A

Source: CVE Program / CVE List V5

Vulnerability Type

N/A

Source: CVE Program / CVE List V5

Vulnerability Title

Squid 缓冲区错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
-	n/a	n/a	-

II. Public POCs for CVE-2019-12529

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2019-12529

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Patches & Fixes for CVE-2019-12529 (1)

https://github.com/squid-cache/squid/commits/v4 x_refsource_CONFIRM

Vendor Advisories for CVE-2019-12529 (3)

https://www.debian.org/security/2019/dsa-4507 vendor-advisory x_refsource_DEBIAN
https://usn.ubuntu.com/4065-1/ vendor-advisory x_refsource_UBUNTU
https://usn.ubuntu.com/4065-2/ vendor-advisory x_refsource_UBUNTU

Mailing List Discussions for CVE-2019-12529 (6)

http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html vendor-advisory x_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html vendor-advisory x_refsource_SUSE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/ vendor-advisory x_refsource_FEDORA
https://seclists.org/bugtraq/2019/Aug/42 mailing-list x_refsource_BUGTRAQ
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html mailing-list x_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2019/07/msg00018.html mailing-list x_refsource_MLIST

Other References for CVE-2019-12529 (2)

http://www.squid-cache.org/Versions/v4/changesets/ x_refsource_CONFIRM
http://www.squid-cache.org/Versions/v4/changesets/squid-4-dd46b5417809647f561d8a5e0e74c3aacd235258.patch x_refsource_CONFIRM

https://www.cve.org/CVERecord?id=CVE-2019-12529

Same Patch Batch · n/a · 2019-07-11 · 40 CVEs total

CVE-2019-12575		London Trust Media Private Internet Access Client 权限许可和访问控制问题漏洞
CVE-2019-12527		Squid 缓冲区错误漏洞
CVE-2019-12525		Squid 缓冲区错误漏洞
CVE-2018-17150		InterSystems Cache 跨站脚本漏洞
CVE-2018-17152		InterSystems Cache 代码问题漏洞
CVE-2018-17151		InterSystems Cache 访问控制错误漏洞
CVE-2018-19588		Alarm.com ADC-V522IR 0100b9 访问控制错误漏洞
CVE-2019-13029		REDCap 跨站脚本漏洞
CVE-2019-9657		Alarm.com ADC-V522IR 0100b9 访问控制错误漏洞
CVE-2014-3798		Citrix Systems XenServer 输入验证错误漏洞
CVE-2019-10651		Ivanti Endpoint Manager Core Server 权限许可和访问控制问题漏洞
CVE-2019-12579		London Trust Media Private Internet Access Client 操作系统命令注入漏洞
CVE-2019-12577		London Trust Media Private Internet Access Client 权限许可和访问控制问题漏洞
CVE-2019-12573		London Trust Media Private Internet Access Client 后置链接漏洞
CVE-2019-12576		London Trust Media Private Internet Access（PIA）Client 代码问题漏洞
CVE-2019-12571		London Trust Media Private Internet Access Client 后置链接漏洞
CVE-2019-10970		Rockwell Automation PanelView 5510 访问控制错误漏洞
CVE-2019-12578		London Trust Media Private Internet Access Client 权限许可和访问控制问题漏洞
CVE-2019-12574		London Trust Media Private Internet Access Client 代码问题漏洞
CVE-2019-12751		Symantec Messaging Gateway 权限许可和访问控制问题漏洞

Showing top 20 of 40 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a

Same vendor: n/a

V. Comments for CVE-2019-12529

No comments yet

Goal Reached Thanks to every supporter — we hit 100%!

CVE-2019-12529

Quick assessment

I. Basic Information for CVE-2019-12529

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2019-12529

III. Intelligence Information for CVE-2019-12529

Patches & Fixes for CVE-2019-12529 (1)

Vendor Advisories for CVE-2019-12529 (3)

Mailing List Discussions for CVE-2019-12529 (6)

Other References for CVE-2019-12529 (2)

Same Patch Batch · n/a · 2019-07-11 · 40 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2019-12529

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