critical9.8
CVE-2020-27846
XML Processing error in github.com/crewjam/saml
Impact
### Impact There are three vulnerabilities in the go `encoding/xml` package that can allow an attacker to forge part of a signed XML document. For details on this vulnerability see [xml-roundtrip-validator](https://github.com/mattermost/xml-roundtrip-validator) ### Patches In version 0.4.3, all XML input is validated prior to being parsed.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/crewjam/saml | < 0.4.3 | 0.4.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Grafana | Grafana | before 6.7.5 from 7.0.0 before 7.2.3 from 7.3.0 before 7.3.6 |
| Saml Project | Saml | before 0.4.3 |
| Redhat | Openshift Container Platform | Versions 3.11, 4.0 |
| Redhat | Openshift Service Mesh | Version 2.0 |
| Redhat | Enterprise Linux | Version 8.0 |
| Fedoraproject | Fedora | Versions 32, 33 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1907670
- https://github.com/crewjam/saml/security/advisories/GHSA-4hq8-gmxx-h6w9
- https://grafana.com/blog/2020/12/17/grafana-6.7.5-7.2.3-and-7.3.6-released-with-important-security-fix-for-grafana-enterprise/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3YUTKIRWT6TWU7DS6GF3EOANVQBFQZYI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ICP3YRY2VUCNCF2VFUSK77ZMRIC77FEM/
- https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/
- https://security.netapp.com/advisory/ntap-20210205-0002/
- https://github.com/advisories/GHSA-4hq8-gmxx-h6w9
- https://nvd.nist.gov/vuln/detail/CVE-2020-27846
- https://github.com/crewjam/saml/commit/da4f1a0612c0a8dd0452cf8b3c7a6518f6b4d053
- https://pkg.go.dev/vuln/GO-2021-0058
- https://grafana.com/blog/2020/12/17/grafana-6.7.5-7.2.3-and-7.3.6-released-with-important-security-fix-for-grafana-enterprise
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3YUTKIRWT6TWU7DS6GF3EOANVQBFQZYI
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ICP3YRY2VUCNCF2VFUSK77ZMRIC77FEM
- https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities
- https://security.netapp.com/advisory/ntap-20210205-0002