CVE-2020-29509
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
The encoding/xml package in Go (all versions) does not correctly preserve the semantics of attribute namespace prefixes during tokenization round-trips, which allows an attacker to craft inputs that behave in conflicting ways during different stages of processing in affected downstream applications.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-29509
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-29509.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 2:1.17-1 | |
| sles | affected | | |
| debian | bullseye | affected | |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/russellhaering/gosaml2 | <0.6.0 | 0.6.0 |
References
- https://www.suse.com/security/cve/CVE-2020-29509.html
- https://github.com/russellhaering/gosaml2/security/advisories/GHSA-xhqq-x44f-9fgg
- https://nvd.nist.gov/vuln/detail/CVE-2020-29509
- https://github.com/russellhaering/gosaml2/commit/42606dafba60c58c458f14f75c4c230459672ab9
- https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md
- https://pkg.go.dev/vuln/GO-2021-0060
- https://security.netapp.com/advisory/ntap-20210129-0006
- https://security-tracker.debian.org/tracker/CVE-2020-29509
Verify integrity in audit chain (admin only). AS-IS.