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Amazon Linux AMI: CVE-2023-46724: Security patch for squid (ALAS-2023-1886)

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Amazon Linux AMI: CVE-2023-46724: Security patch for squid (ALAS-2023-1886)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
11/01/2023
Created
12/07/2023
Added
12/05/2023
Modified
12/05/2023

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)

  • amazon-linux-upgrade-squid

References

  • ALAS-2023-1886
  • CVE-2023-46724

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