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Oracle Solaris 11: CVE-2019-12519: Vulnerability in Squid

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Oracle Solaris 11: CVE-2019-12519: Vulnerability in Squid

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
04/15/2020
Created
01/20/2021
Added
01/19/2021
Modified
11/17/2021

Description

An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow.

Solution(s)

  • oracle-solaris-11-4-upgrade-value-web-proxy-squid-4-11-11-4-22-0-1-69-4

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