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CVE-2018-6521

Published: 2 February 2018

The sqlauth module in SimpleSAMLphp before 1.15.2 relies on the MySQL utf8 charset, which truncates queries upon encountering four-byte characters. There might be a scenario in which this allows remote attackers to bypass intended access restrictions.

Notes

AuthorNote
msalvatore
According to the security advisory, "there is no known way to
exploit the issue." There are 2 mitigating factors. See the
SimpleSAMLphp advisory for more details.

Priority

Low

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
simplesamlphp
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable
(1.15.2-1)
cosmic Not vulnerable
(1.15.2-1)
disco Not vulnerable
(1.15.2-1)
eoan Not vulnerable
(1.15.2-1)
focal Not vulnerable
(1.15.2-1)
trusty Does not exist
(trusty was needs-triage)
upstream
Released (1.15.2-1)
impish Not vulnerable
(1.15.2-1)
groovy Not vulnerable
(1.15.2-1)
hirsute Not vulnerable
(1.15.2-1)
xenial Needed

jammy Not vulnerable
(1.15.2-1)
kinetic Not vulnerable
(1.15.2-1)
lunar Not vulnerable
(1.15.2-1)
mantic Not vulnerable
(1.15.2-1)

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H