CVE-2023-4045

Summary

Offscreen Canvas did not properly track cross-origin tainting, which could have been used to access image data from another site in violation of same-origin policy. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

Affected Software

Weaknesses

• Offscreen Canvas could have bypassed cross-origin restrictions

ADP Enrichment

CVE Program Container

Additional References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1833876
• https://www.mozilla.org/security/advisories/mfsa2023-29/
• https://www.mozilla.org/security/advisories/mfsa2023-30/
• https://www.mozilla.org/security/advisories/mfsa2023-31/
• https://www.debian.org/security/2023/dsa-5464
• https://www.debian.org/security/2023/dsa-5469
• https://lists.debian.org/debian-lts-announce/2023/08/msg00008.html
• https://lists.debian.org/debian-lts-announce/2023/08/msg00010.html

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1833876
• https://www.mozilla.org/security/advisories/mfsa2023-29/
• https://www.mozilla.org/security/advisories/mfsa2023-30/
• https://www.mozilla.org/security/advisories/mfsa2023-31/
• https://www.debian.org/security/2023/dsa-5464
• https://www.debian.org/security/2023/dsa-5469
• https://lists.debian.org/debian-lts-announce/2023/08/msg00008.html
• https://lists.debian.org/debian-lts-announce/2023/08/msg00010.html

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