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CVE-2023-4583

Browsing Context potentially not cleared when closing Private Window

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 117, 115.2
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

When checking if the Browsing Context had been discarded in `HttpBaseChannel`, if the load group was not available then it was assumed to have already been discarded which was not always the case for private channels after the private session had ended. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • Mozilla Firefox

    fixed in 117

  • Mozilla Firefox ESR

    fixed in 115.2

  • Mozilla Thunderbird

    fixed in 115.2

References 4

bugzilla.mozilla.org

mozilla.org