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Amazon Linux 2023: CVE-2023-46728: Important priority package update for squid

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Amazon Linux 2023: CVE-2023-46728: Important priority package update for squid

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
09/26/2023
Created
02/14/2025
Added
02/14/2025
Modified
02/14/2025

Description

Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. Gopher support has been removed in Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should reject all gopher URL requests. Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway. The gopher protocol is always available and enabled in Squid. This issue may lead to a remote denial of service via gopher URL requests.

Solution(s)

  • amazon-linux-2023-upgrade-squid
  • amazon-linux-2023-upgrade-squid-debuginfo
  • amazon-linux-2023-upgrade-squid-debugsource

References

  • https://attackerkb.com/topics/cve-2023-46728
  • CVE - 2023-46728
  • https://alas.aws.amazon.com/AL2023/ALAS-2023-429.html
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