LiveActive security incident?Get immediate response
CVE Record

CVE-2020-7711: Denial of Service (DoS)

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

HighCVSS 7.5Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This flaw can make a Go service crash when it processes a malformed XML signature using goxmldsig. The business impact is availability: an unauthenticated network sender may be able to interrupt affected services that accept XML signatures. The sources do not cite data theft, privilege escalation, or active exploitation.

Executive priority

Treat this as a targeted availability risk. Prioritize internet-facing or business-critical services that process XML signatures with goxmldsig. There is no sourced evidence of active exploitation, but the low-complexity unauthenticated crash path makes validation and remediation planning important.

Technical view

CVE-2020-7711 affects github.com/russellhaering/goxmldsig. Malformed XML signatures can trigger a nil-pointer dereference and crash. The provided CVSS 3.1 score is 7.5 high, with network attack vector, low complexity, no privileges, no user interaction, and high availability impact only.

Likely exposure

Exposure is likely limited to Go applications that import github.com/russellhaering/goxmldsig and process XML signatures supplied over a network or by external integrations. Systems not using this package, or not processing untrusted XML signatures, are not indicated as affected by the provided sources.

Exploitation context

The source bundle marks CISA KEV as false and provides no cited evidence of active exploitation. The CVSS vector includes proof-of-concept exploit maturity, but the provided sources do not establish real-world exploitation or affected downstream products.

Researcher notes

The evidence identifies a nil-pointer dereference crash from malformed XML signatures. The bundle does not include CWE mapping, a confirmed fixed release, or downstream affected applications. Avoid assuming broader XML, SAML, or authentication-product exposure without local dependency evidence.

Mitigation direction

  • Inventory Go services for github.com/russellhaering/goxmldsig usage.
  • Check the GitHub issue and Snyk advisory for current maintainer guidance.
  • Prioritize services accepting externally supplied XML signatures.
  • Apply a vendor-supported fixed version if one is identified.
  • Use operational safeguards to reduce crash impact where feasible.

Validation and detection

  • Search dependency manifests for github.com/russellhaering/goxmldsig.
  • Confirm whether affected code parses external XML signatures.
  • Review service logs for crashes during XML-signature processing.
  • Verify remediation against vendor or advisory guidance.
  • Add regression coverage for malformed XML-signature handling.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2020-7711 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P3.93.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2020-7711Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/agithub.com/russellhaering/goxmldsig0Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.