Improper input validation in Squid-Cache Squid

CVE-2016-2570

The Edge Side Includes (ESI) parser in Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not check buffer limits during XML parsing, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a crafted XML document, related to esi/CustomParser.cc and esi/CustomParser.h.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.090 (94.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2016-2570?
CVE-2016-2570 is a high-severity vulnerability in Squid-Cache Squid, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2016-02-27.
How severe is CVE-2016-2570?
High severity. CVSS v3 base score is 7.5 out of 10.