CVE-2020-6806

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Summary

CVECVE-2020-6806
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-03-25 22:15:00 UTC
Updated2023-02-03 23:54:00 UTC
DescriptionBy carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

Risk And Classification

Problem Types: CWE-125

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 19.10 All All All
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
Security Vulnerabilities fixed in Firefox ESR 68.6 — Mozilla MISC www.mozilla.org Vendor Advisory
Security Vulnerabilities fixed in Firefox 74 — Mozilla MISC www.mozilla.org Vendor Advisory
USN-4328-1: Thunderbird vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
Security Vulnerabilities fixed in Thunderbird 68.6 — Mozilla MISC www.mozilla.org Vendor Advisory
1612308 - (CVE-2020-6806) Security: OOB access in js::ReadableStreamCloseInternal MISC bugzilla.mozilla.org Issue Tracking, Permissions Required
USN-4335-1: Thunderbird vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com
Firefox js::ReadableStreamCloseInternal Out-Of-Bounds Access ≈ Packet Storm MISC packetstormsecurity.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 178553 Debian Security Update for firefox-esr (DLA 2140-1)
  • 377015 Alibaba Cloud Linux Security Update for firefox (ALINUX2-SA-2020:0036)
  • 377080 Alibaba Cloud Linux Security Update for thunderbird (ALINUX2-SA-2020:0037)
  • 500927 Alpine Linux Security Update for firefox-esr
  • 500946 Alpine Linux Security Update for firefox
  • 501076 Alpine Linux Security Update for mozjs68
  • 502372 Alpine Linux Security Update for thunderbird
  • 503831 Alpine Linux Security Update for firefox
  • 504792 Alpine Linux Security Update for firefox-esr
  • 505440 Alpine Linux Security Update for thunderbird

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