CVE-2018-7644
First published: Mon Feb 26 2018(Updated: )
Incorrect signature validation
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/simplesamlphp/saml2 | <1.10.5>=2.0<2.3.7>=3.0<3.1.3 | |
| debian/simplesamlphp | 1.16.3-1+deb10u2 1.16.3-1+deb10u1 1.19.0-1 1.19.7-1 | |
| Simplesamlphp Simplesamlphp | <1.15.3 | |
| composer/simplesamlphp/saml2 | >=3.0<3.1.3 | 3.1.3 |
| composer/simplesamlphp/saml2 | >=2.0<2.3.7 | 2.3.7 |
| composer/simplesamlphp/saml2 | <1.10.5 | 1.10.5 |
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Reference Links
- https://simplesamlphp.org/security/201802-01
- https://github.com/simplesamlphp/saml2/commit/88a9ae848c4b310b1c53b5700893d890999dd930
- https://security-tracker.debian.org/tracker/CVE-2018-7644
- https://nvd.nist.gov/vuln/detail/CVE-2018-7644
- https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/saml2/CVE-2018-7644.yaml
- https://github.com/advisories/GHSA-923w-2xv2-7pr8 (Advisory)
Frequently Asked Questions
What is CVE-2018-7644?
CVE-2018-7644 is a vulnerability that affects the XmlSecLibs library used in the saml2 library in SimpleSAMLphp before 1.15.3.
What is the severity of CVE-2018-7644?
CVE-2018-7644 has a severity rating of 7.5 (high).
How does CVE-2018-7644 work?
CVE-2018-7644 allows a remote attacker to create a crafted SAML assertion that appears to be valid, bypassing signature verification.
Which software versions are affected by CVE-2018-7644?
Versions of SimpleSAMLphp up to 1.15.3, as well as certain versions of the simplesamlphp package in Debian, are affected by CVE-2018-7644.
How can I fix CVE-2018-7644?
To fix CVE-2018-7644, you should update to SimpleSAMLphp version 1.15.3 or later, or install the appropriate patched version of the simplesamlphp package in Debian.
- collector/friends-of-php
- collector/security-tracker-debian
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-923w-2xv2-7pr8
- alias/CVE-2018-7644
- agent/software-canonical-lookup
- agent/references
- agent/severity
- agent/softwarecombine
- agent/last-modified-date
- agent/weakness
- agent/description
- agent/event
- collector/nvd-cve
- source/NVD
- agent/author
- collector/github-advisory
- agent/tags
- collector/mitre-cve
- source/MITRE
- package-manager/composer
- package-manager/debian
- vendor/simplesamlphp
- canonical/simplesamlphp simplesamlphp