ALAS-2023-1766

Related Vulnerabilities: CVE-2016-10003   CVE-2020-8517  

Incorrect HTTP Request header comparison in Squid HTTP Proxy 3.5.0.1 through 3.5.22, and 4.0.1 through 4.0.16 results in Collapsed Forwarding feature mistakenly identifying some private responses as being suitable for delivery to multiple clients. (CVE-2016-10003) An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy. (CVE-2020-8517)

ALAS-2023-1766


Amazon Linux AMI Security Advisory: ALAS-2023-1766
Advisory Release Date: 2023-06-05 16:39 Pacific
Advisory Updated Date: 2023-06-08 23:39 Pacific
Severity: Important

Issue Overview:

Incorrect HTTP Request header comparison in Squid HTTP Proxy 3.5.0.1 through 3.5.22, and 4.0.1 through 4.0.16 results in Collapsed Forwarding feature mistakenly identifying some private responses as being suitable for delivery to multiple clients. (CVE-2016-10003)

An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy. (CVE-2020-8517)


Affected Packages:

squid


Issue Correction:
Run yum update squid to update your system.

New Packages:
i686:
    squid-migration-script-3.5.20-17.48.amzn1.i686
    squid-debuginfo-3.5.20-17.48.amzn1.i686
    squid-3.5.20-17.48.amzn1.i686

src:
    squid-3.5.20-17.48.amzn1.src

x86_64:
    squid-debuginfo-3.5.20-17.48.amzn1.x86_64
    squid-migration-script-3.5.20-17.48.amzn1.x86_64
    squid-3.5.20-17.48.amzn1.x86_64