NULL Pointer Dereference Affecting squid package, versions <4.12-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.56% (79th percentile)

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  • Snyk IDSNYK-DEBIAN13-SQUID-5696188
  • published1 Jul 2020
  • disclosed30 Jun 2020

Introduced: 30 Jun 2020

CVE-2020-14058  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Debian:13 squid to version 4.12-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream squid package and not the squid package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

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.

CVSS Scores

version 3.1