CVE-2020-14058

Published: 30 June 2020

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.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
squid
Launchpad, Ubuntu, Debian 		Upstream Needs triage

Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(code not compiled)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

squid3
Launchpad, Ubuntu, Debian 		Upstream Needs triage

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(code not compiled)
Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable
(code not compiled)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Notes

AuthorNote
mdeslaur 
In Ubuntu, squid is built without openssl support, so this
is not an issue.

References

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