Memory safety bugs fixed in Firefox 109 and Firefox ESR 102.7

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Summary

CVECVE-2023-23605
StatePUBLISHED
Assignermozilla
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-06-02 17:15:10 UTC
Updated2026-10-24 13:10:00 UTC
DescriptionMozilla developers and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 108 and Firefox ESR 102.6. 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 Firefox < 109, Firefox ESR < 102.7, and Thunderbird < 102.7.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

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

Problem Types: CWE-787 | CWE-787 CWE-787 Out-of-bounds Write

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1ADPDECLARED8.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Mozilla Firefox affected unspecified 109 custom Not specified
CNA Mozilla Firefox ESR affected unspecified 102.7 custom Not specified
CNA Mozilla Thunderbird affected unspecified 102.7 custom Not specified

References

ReferenceSourceLinkTags
Security Vulnerabilities fixed in Firefox 109 — Mozilla af854a3a-2127-422b-91ae-364da2661108 www.mozilla.org Vendor Advisory
Bug List af854a3a-2127-422b-91ae-364da2661108 bugzilla.mozilla.org Broken Link, Issue Tracking, Not Applicable
Security Vulnerabilities fixed in Thunderbird 102.7 — Mozilla af854a3a-2127-422b-91ae-364da2661108 www.mozilla.org Vendor Advisory
Security Vulnerabilities fixed in Firefox ESR 102.7 — Mozilla af854a3a-2127-422b-91ae-364da2661108 www.mozilla.org Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Mozilla developers (en)

Legacy QID Mappings

  • 160420 Oracle Enterprise Linux Security Update for firefox (ELSA-2023-0296)
  • 160425 Oracle Enterprise Linux Security Update for firefox (ELSA-2023-0288)
  • 160432 Oracle Enterprise Linux Security Update for firefox (ELSA-2023-0285)
  • 160434 Oracle Enterprise Linux Security Update for thunderbird (ELSA-2023-0456)
  • 160435 Oracle Enterprise Linux Security Update for thunderbird (ELSA-2023-0463)
  • 160438 Oracle Enterprise Linux Security Update for thunderbird (ELSA-2023-0476)
  • 181483 Debian Security Update for firefox-esr (DSA 5322-1)
  • 181485 Debian Security Update for firefox-esr (DLA 3275-1)
  • 181585 Debian Security Update for thunderbird (CVE-2023-23605)
  • 181592 Debian Security Update for thunderbird (DLA 3324-1)
  • 181680 Debian Security Update for thunderbird (DSA 5355-1)
  • 199122 Ubuntu Security Notification for Firefox Vulnerabilities (USN-5816-1)
  • 199147 Ubuntu Security Notification for Thunderbird Vulnerabilities (USN-5824-1)
  • 241084 Red Hat Update for firefox (RHSA-2023:0295)
  • 241087 Red Hat Update for firefox (RHSA-2023:0285)
  • 241089 Red Hat Update for firefox (RHSA-2023:0296)
  • 241090 Red Hat Update for firefox (RHSA-2023:0286)
  • 241092 Red Hat Update for firefox (RHSA-2023:0288)
  • 241094 Red Hat Update for firefox (RHSA-2023:0289)
  • 241133 Red Hat Update for thunderbird (RHSA-2023:0461)
  • 241134 Red Hat Update for thunderbird (RHSA-2023:0463)
  • 241136 Red Hat Update for thunderbird (RHSA-2023:0460)
  • 241137 Red Hat Update for thunderbird (RHSA-2023:0462)
  • 241139 Red Hat Update for thunderbird (RHSA-2023:0456)
  • 241141 Red Hat Update for thunderbird (RHSA-2023:0476)
  • 241634 Red Hat Update for thunderbird (RHSA-2023:0457)
  • 241651 Red Hat Update for firefox (RHSA-2023:0290)
  • 241671 Red Hat Update for firefox (RHSA-2023:0294)
  • 241680 Red Hat Update for thunderbird (RHSA-2023:0459)
  • 257208 CentOS Security Update for firefox (CESA-2023:0296)
  • 257209 CentOS Security Update for thunderbird (CESA-2023:0456)
  • 354760 Amazon Linux Security Advisory for thunderbird : ALAS2-2023-1951
  • 356198 Amazon Linux Security Advisory for firefox : ALASFIREFOX-2023-013
  • 377905 Mozilla Firefox Multiple Vulnerabilities (MFSA2023-01)
  • 377906 Mozilla Firefox ESR Multiple Vulnerabilities (MFSA2023-02)
  • 377924 Mozilla Thunderbird Multiple Vulnerabilities (MFSA2023-03)
  • 503454 Alpine Linux Security Update for firefox-esr
  • 506062 Alpine Linux Security Update for firefox-esr
  • 710713 Gentoo Linux Mozilla Firefox Multiple Vulnerabilities (GLSA 202305-06)
  • 710715 Gentoo Linux Mozilla Thunderbird Multiple Vulnerabilities (GLSA 202305-13)
  • 753546 SUSE Enterprise Linux Security Update for MozillaFirefox (SUSE-SU-2023:0113-1)
  • 753552 SUSE Enterprise Linux Security Update for MozillaFirefox (SUSE-SU-2023:0112-1)
  • 753553 SUSE Enterprise Linux Security Update for MozillaFirefox (SUSE-SU-2023:0111-1)
  • 753663 SUSE Enterprise Linux Security Update for MozillaThunderbird (SUSE-SU-2023:0329-1)
  • 940890 AlmaLinux Security Update for firefox (ALSA-2023:0288)
  • 940893 AlmaLinux Security Update for firefox (ALSA-2023:0285)
  • 940912 AlmaLinux Security Update for thunderbird (ALSA-2023:0463)
  • 940916 AlmaLinux Security Update for thunderbird (ALSA-2023:0476)
  • 960478 Rocky Linux Security Update for thunderbird (RLSA-2023:0476)
  • 960574 Rocky Linux Security Update for thunderbird (RLSA-2023:0463)
  • 960620 Rocky Linux Security Update for firefox (RLSA-2023:0288)
  • 960644 Rocky Linux Security Update for firefox (RLSA-2023:0285)

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