Candidate: CVE-2018-7711
PublicDate: 2018-03-05 22:29:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7711
 https://simplesamlphp.org/security/201803-01
 https://github.com/simplesamlphp/saml2/commit/4f6af7f69f29df8555a18b9bb7b646906b45924d
Description:
 HTTPRedirect.php in the saml2 library in SimpleSAMLphp before 1.15.4 has an
 incorrect check of return values in the signature validation utilities,
 allowing an attacker to get invalid signatures accepted as valid by forcing
 an error during validation. This occurs because of a dependency on PHP
 functionality that interprets a -1 error code as a true boolean value.
Ubuntu-Description:
Notes:
Bugs:
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H [8.1 HIGH]


Patches_simplesamlphp:
upstream_simplesamlphp: released (1.15.4-1)
precise/esm_simplesamlphp: DNE
trusty_simplesamlphp: ignored (reached end-of-life)
trusty/esm_simplesamlphp: DNE (trusty was needs-triage)
xenial_simplesamlphp: ignored (end of standard support, was needed)
artful_simplesamlphp: ignored (reached end-of-life)
bionic_simplesamlphp: needed
cosmic_simplesamlphp: ignored (reached end-of-life)
disco_simplesamlphp: not-affected (1.15.4-1)
eoan_simplesamlphp: not-affected (1.15.4-1)
focal_simplesamlphp: not-affected (1.15.4-1)
groovy_simplesamlphp: not-affected (1.15.4-1)
hirsute_simplesamlphp: not-affected (1.15.4-1)
impish_simplesamlphp: not-affected (1.15.4-1)
jammy_simplesamlphp: not-affected (1.15.4-1)
devel_simplesamlphp: not-affected (1.15.4-1)