VDB
ALPINE-CVE-2019-12519
ALPINE-CVE-2019-12519
PUBLISHED
CVSS 9.800000190734863 CRITICAL
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.
Risk Scores
CVSS v3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.10 | squid | 3.5.20-r1, 3.5.20-r0, 3.5.2-r1 |
| Alpine:v3.9 | squid | 3.2.0.16-r0, 2.7.6-r1, 2.7.6-r10 |
| Alpine:v3.11 | squid | 3.5.6-r0, 3.5.6-r1, 3.5.7-r0 |
Timeline
- Apr 15, 2020 CVE Published
- Nov 19, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch