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Fencer Intel
high 7.5

CVE-2020-7711 json

Denial of Service (DoS)

published 6y ago modified 4mo ago also CVE-2020-7731 , GHSA-gq5r-cc4w-g8xf , GHSA-mqqv-chpx-vq25 , GHSA-prjq-f4q3-fvfr , GO-2020-0046 , EUVD-2022-7133

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
0
none known

Summary

This affects all versions of package github.com/russellhaering/goxmldsig. There is a crash on nil-pointer dereference caused by sending malformed XML signatures.

Patch / fix

  • go github.com/russellhaering/gosaml2 0.7.0
  • go github.com/russellhaering/goxmldsig 1.1.1
  • golang-github-russellhaering-goxmldsig Debian 12 1.1.1-1

debian advisories DEBIAN-CVE-2020-7711

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-7711 updated cvss 7.5

goxmldsig: sending malformed XML signatures could result in a crash

  • Red Hat OpenShift Service Mesh 1 servicemesh-grafana, servicemesh-grafana-prometheus Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/acm-grafana-rhel8 Red Hat OpenShift Container Platform 4 openshift4/ose-grafana
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.80% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/russellhaering/goxmldsig/issues/48 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
go github.com/russellhaering/gosaml2
<0.7.0
0.7.0
go github.com/russellhaering/goxmldsig
<1.1.1
1.1.1

Affected products

  • n/a github.com/russellhaering/goxmldsig

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.