CVE-2020-14058

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 30-06-2020 09:15

Last modified: - 28-04-2022 08:57

Total changes: - 4

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Low

Attack complexity

Network

Attack vector

High

Availability

None

Confidentiality

None

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

7.5

Base score

3.9

3.6

Exploitability score

Impact score

Verification logic

vendor=squid-cache AND product=squid AND versionEndIncluding=3.5.28 AND versionStartIncluding=3.1

vendor=squid-cache AND product=squid AND versionStartIncluding=4.0 AND versionEndExcluding=4.12

vendor=squid-cache AND product=squid AND versionStartIncluding=5.0 AND versionEndExcluding=5.0.3

vendor=fedoraproject AND product=fedora AND version=31

vendor=netapp AND product=cloud_manager AND version=-

Reference

Keywords

CVE-2020-14058

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2020-14058

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures