VULNERABILITY

Amazon Linux AMI: CVE-2019-12523: Security patch for squid (ALAS-2023-1757)

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Amazon Linux AMI: CVE-2019-12523: Security patch for squid (ALAS-2023-1757)

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:N)
Published
11/14/2019
Created
06/08/2023
Added
06/07/2023
Modified
06/07/2023

Description

An issue was discovered in Squid before 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost.

Solution(s)

  • amazon-linux-upgrade-squid

References

  • ALAS-2023-1757
  • USN-4213-1
  • USN-4446-1
  • USN-4446-2
  • CVE-2019-12523

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