CVE-2023-6205

Summary

It was possible to cause the use of a MessagePort after it had already been freed, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

Affected Software

Weaknesses

• Use-after-free in MessagePort::Entangled

ADP Enrichment

CVE Program Container

Additional References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1854076
• https://www.mozilla.org/security/advisories/mfsa2023-49/
• https://www.mozilla.org/security/advisories/mfsa2023-50/
• https://www.mozilla.org/security/advisories/mfsa2023-52/
• https://www.debian.org/security/2023/dsa-5561
• https://lists.debian.org/debian-lts-announce/2023/11/msg00017.html
• https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1854076
• https://www.mozilla.org/security/advisories/mfsa2023-49/
• https://www.mozilla.org/security/advisories/mfsa2023-50/
• https://www.mozilla.org/security/advisories/mfsa2023-52/
• https://www.debian.org/security/2023/dsa-5561
• https://lists.debian.org/debian-lts-announce/2023/11/msg00017.html
• https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html

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