VULNERABILITY INTELLIGENCE
CVE-2020-14058
CVSS score7.5 HIGH
EPSS probability2.54%
CISA KEVNot currently listed
Published2020-06-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
An issue was discovered in Squid before 4.12 and 5.x before 5.0.3. Due to use of a potentially dangerous function, Squid and the default certificate validation helper are vulnerable to a Denial of Service when opening a TLS connection to an attacker-controlled server for HTTPS. This occurs because unrecognized error values are mapped to NULL, but later code expects that each error value is mapped to a valid error string.
Weakness classification
- nvd@nist.gov: NVD-CWE-noinfo
Primary references
- cve@mitre.org — Vendor Advisory
- cve@mitre.org — Patch, Vendor Advisory
- cve@mitre.org — Patch, Vendor Advisory
- cve@mitre.org
- cve@mitre.org — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory