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Rewterz Threat Advisory – Multiple Mozilla Thunderbird Vulnerabilities

December 20, 2023

Rewterz Threat Advisory – Multiple Mozilla Thunderbird Vulnerabilities

Severity

Medium

Analysis Summary

CVE-2023-50761 CVSS:6.5

Mozilla Thunderbird could allow a remote attacker to bypass security restrictions, caused by the acceptance of S/MIME signatures despite mismatching message date. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to give recipients the impression that a message was sent at a different date or time.

CVE-2023-50762 CVSS:6.5

Mozilla Thunderbird could allow a remote attacker to conduct spoofing attacks, caused by the showing of truncated signed text with a valid OpenPGP signature. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to spoof an email message.

Impact

  • Security Bypass
  • Gain Access

Indicators Of Compromise

CVE

  • CVE-2023-50761
  • CVE-2023-50762

Affected Vendors

Mozilla

Affected Products

  • Mozilla Thunderbird 115.5

Remediation

Refer to Mozilla Foundation Security Advisory for patch, upgrade or suggested workaround information.

Mozilla Foundation Security Advisory

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