CVE-2019-12519
An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpress
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.
CRITICAL · CVSS 9.8
EPSS 0.07536
Schedule remediation
- EPSS percentile: top 8% of all CVEs by exploitation likelihood
- CVSS base score ≥ 7.0
Sigma rules0
YARA rules0