ALASSQUID4-2023-006

Amazon Linux 2 Security Advisory: ALASSQUID4-2023-006
Advisory Release Date: 2023-08-21 20:59 Pacific
Advisory Updated Date: 2023-09-25 22:00 Pacific
Severity: Important
Issue Overview:

A flaw was found in squid. Due to incorrect data validation, a HTTP Request Smuggling attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity. (CVE-2020-15810)

A flaw was found in squid. Due to incorrect data validation, an HTTP Request Splitting attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity. (CVE-2020-15811)

A flaw was found in squid. A denial of service attack is possible due to an improper input validation. The highest threat from this vulnerability is to system availability. (CVE-2020-24606)


Affected Packages:

squid


Note:

This advisory is applicable to Amazon Linux 2 - Squid4 Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.


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

New Packages:
aarch64:
    squid-4.13-1.amzn2.0.1.aarch64
    squid-debuginfo-4.13-1.amzn2.0.1.aarch64

src:
    squid-4.13-1.amzn2.0.1.src

x86_64:
    squid-4.13-1.amzn2.0.1.x86_64
    squid-debuginfo-4.13-1.amzn2.0.1.x86_64

Additional References

Red Hat: CVE-2020-15810, CVE-2020-15811, CVE-2020-24606

Mitre: CVE-2020-15810, CVE-2020-15811, CVE-2020-24606