CVE-2021-29976

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Summary

CVECVE-2021-29976
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-08-05 20:15:00 UTC
Updated2022-12-09 19:07:00 UTC
DescriptionMozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.

Risk And Classification

Problem Types: CWE-787

NVD Known Affected Configurations (CPE 2.3)

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

References

ReferenceSourceLinkTags
Bug List MISC bugzilla.mozilla.org
Mozilla Thunderbird: Multiple Vulnerabilities (GLSA 202208-14) — Gentoo security GENTOO security.gentoo.org
Security Vulnerabilities fixed in Firefox ESR 78.12 — Mozilla MISC www.mozilla.org
Security Vulnerabilities fixed in Firefox 90 — Mozilla MISC www.mozilla.org
Security Vulnerabilities fixed in Thunderbird 78.12 — Mozilla MISC www.mozilla.org
Mozilla Firefox: Multiple vulnerabilities (GLSA 202202-03) — Gentoo security GENTOO security.gentoo.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159302 Oracle Enterprise Linux Security Update for firefox (ELSA-2021-2741)
  • 159303 Oracle Enterprise Linux Security Update for firefox (ELSA-2021-2743)
  • 159321 Oracle Enterprise Linux Security Update for thunderbird (ELSA-2021-2881)
  • 159323 Oracle Enterprise Linux Security Update for thunderbird (ELSA-2021-2883)
  • 178705 Debian Security Update for firefox-esr (DSA 4939-1)
  • 178706 Debian Security Update for thunderbird (DSA 4940-1)
  • 178708 Debian Security Update for firefox-esr (DLA 2709-1)
  • 178715 Debian Security Update for thunderbird (DLA 2711-1)
  • 179926 Debian Security Update for firefox-esrthunderbird (CVE-2021-29976)
  • 198479 Ubuntu Security Notification for Thunderbird Vulnerabilities (USN-5058-1)
  • 198481 Ubuntu Security Notification for Thunderbird Vulnerabilities (USN-5058-1)
  • 198483 Ubuntu Security Notification for Thunderbird Vulnerabilities (USN-5058-1)
  • 239474 Red Hat Update for firefox (RHSA-2021:2743)
  • 239475 Red Hat Update for firefox (RHSA-2021:2742)
  • 239476 Red Hat Update for firefox (RHSA-2021:2741)
  • 239477 Red Hat Update for firefox (RHSA-2021:2740)
  • 239507 Red Hat Update for thunderbird (RHSA-2021:2914)
  • 239508 Red Hat Update for thunderbird (RHSA-2021:2883)
  • 239509 Red Hat Update for thunderbird (RHSA-2021:2882)
  • 239510 Red Hat Update for thunderbird (RHSA-2021:2881)
  • 257098 CentOS Security Update for firefox (CESA-2021:2741)
  • 352834 Amazon Linux Security Advisory for thunderbird: ALAS2-2021-1709
  • 375712 Mozilla Firefox Multiple Vulnerabilities (MFSA2021-28)
  • 375716 Mozilla Firefox ESR Multiple Vulnerabilities (MFSA2021-29)
  • 375717 Mozilla Thunderbird Multiple Vulnerabilities (MFSA2021-30)
  • 501550 Alpine Linux Security Update for firefox-esr
  • 501616 Alpine Linux Security Update for mozjs78
  • 502079 Alpine Linux Security Update for firefox
  • 502381 Alpine Linux Security Update for thunderbird
  • 503632 Alpine Linux Security Update for thunderbird
  • 503634 Alpine Linux Security Update for thunderbird
  • 503650 Alpine Linux Security Update for thunderbird
  • 503669 Alpine Linux Security Update for thunderbird
  • 503850 Alpine Linux Security Update for firefox
  • 506260 Alpine Linux Security Update for thunderbird
  • 710574 Gentoo Linux Mozilla Firefox Multiple Vulnerabilities (GLSA 202202-03)
  • 710585 Gentoo Linux Mozilla Thunderbird Multiple Vulnerabilities (GLSA 202208-14)
  • 750838 SUSE Enterprise Linux Security Update for MozillaFirefox (SUSE-SU-2021:2389-1)
  • 750854 OpenSUSE Security Update for MozillaFirefox (openSUSE-SU-2021:1066-1)
  • 750862 OpenSUSE Security Update for MozillaFirefox (openSUSE-SU-2021:2393-1)
  • 750883 OpenSUSE Security Update for MozillaThunderbird (openSUSE-SU-2021:2458-1)
  • 750898 SUSE Enterprise Linux Security Update for MozillaFirefox (SUSE-SU-2021:2478-1)
  • 750916 OpenSUSE Security Update for MozillaThunderbird (openSUSE-SU-2021:1091-1)
  • 940194 AlmaLinux Security Update for firefox (ALSA-2021:2743)
  • 940333 AlmaLinux Security Update for thunderbird (ALSA-2021:2883)
  • 960706 Rocky Linux Security Update for firefox (RLSA-2021:2743)
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