CVE-2020-6797
By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbitrary application on the user's computer.
Does this matter?
Lower severity and a low EPSS score (1.48%). Track it; it rarely justifies an emergency change on its own.
Description
By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbitrary application on the user's computer. The attacker is restricted as they are unable to download non-quarantined files or supply command line arguments to the application, limiting the impact. Note: this issue only occurs on Mac OSX. Other operating systems are unaffected. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- EPSS
- 1.48% probability · 72th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1596668Issue Tracking, Permissions Required
- https://security.gentoo.org/glsa/202003-02Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-06/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-07/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1596668Issue Tracking, Permissions Required
- https://security.gentoo.org/glsa/202003-02Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-06/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-07/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.