CVE-2020-6821

Summary

CVECVE-2020-6821
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-04-24 16:15:00 UTC
Updated2021-07-21 11:39:00 UTC
DescriptionWhen reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.

Risk And Classification

Problem Types: CWE-908

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mozilla Firefox All All All All
Application Mozilla Firefox All All All All
Application Mozilla Firefox Esr All All All All
Application Mozilla Firefox Esr All All All All
Application Mozilla Thunderbird All All All All
Application Mozilla Thunderbird All All All All

References

ReferenceSourceLinkTags
Access Denied MISC bugzilla.mozilla.org Issue Tracking, Permissions Required
USN-4335-1: Thunderbird vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com Third Party Advisory
Security Vulnerabilities fixed in Firefox ESR 68.7 — Mozilla MISC www.mozilla.org Vendor Advisory
Security Vulnerabilities fixed in Firefox 75 — Mozilla MISC www.mozilla.org Vendor Advisory
Security Vulnerabilities fixed in Thunderbird 68.7.0 — Mozilla MISC www.mozilla.org Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 296074 Oracle Solaris 11.4 Support Repository Update (SRU) 22.69.4 Missing (CPUAPR2020)
  • 500929 Alpine Linux Security Update for firefox-esr
  • 500948 Alpine Linux Security Update for firefox
  • 501077 Alpine Linux Security Update for mozjs68
  • 502373 Alpine Linux Security Update for thunderbird
  • 503833 Alpine Linux Security Update for firefox
  • 504794 Alpine Linux Security Update for firefox-esr
  • 505441 Alpine Linux Security Update for thunderbird
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