CVE-2022-45403

Description

Service Workers should not be able to infer information about opaque cross-origin responses; but timing information for cross-origin media combined with Range requests might have allowed them to determine the presence or length of a media file. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

CVSS Metrics

• v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS Trends

Current EPSS score: 0.70%• Percentile: 49%

Techniques & Countermeasures

• CWE-203•Observable Discrepancy

  The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.

Affected Systems

• mozilla•firefox

  ≥ unspecified, < 107 | < 107.0

• mozilla•firefox_esr

  ≥ unspecified, < 102.5 | < 102.5

• mozilla•thunderbird

  ≥ unspecified, < 102.5 | < 102.5

References (4)

• https://www.mozilla.org/security/advisories/mfsa2022-47/
• https://www.mozilla.org/security/advisories/mfsa2022-49/
• https://www.mozilla.org/security/advisories/mfsa2022-48/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1762078