VULNERABILITY

CentOS Linux: CVE-2023-46724: Important: squid security update (CESA-2024:1787)

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CentOS Linux: CVE-2023-46724: Important: squid security update (CESA-2024:1787)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
11/01/2023
Created
01/06/2024
Added
01/05/2024
Modified
01/28/2025

Description

Squid is a caching proxy for the Web. Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using `--with-openssl` are vulnerable to a Denial of Service attack against SSL Certificate validation. This problem allows a remote server to perform Denial of Service against Squid Proxy by initiating a TLS Handshake with a specially crafted SSL Certificate in a server certificate chain. This attack is limited to HTTPS and SSL-Bump. This bug is fixed in Squid version 6.4. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. Those who you use a prepackaged version of Squid should refer to the package vendor for availability information on updated packages.

Solution(s)

  • centos-upgrade-squid
  • centos-upgrade-squid-debuginfo
  • centos-upgrade-squid-migration-script
  • centos-upgrade-squid-sysvinit

References

  • CVE-2023-46724

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