DEBIAN-CVE-2018-12379

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2018-12379
Published: 18 Oct 2018, 13:29
Last modified:28 Apr 2026, 20:18

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
3.0 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Oct 2018, 13:29
Published
Vulnerability first disclosed
28 Apr 2026, 20:18
Last Modified
Vulnerability information updated

Description

When the Mozilla Updater opens a MAR format file which contains a very long item filename, an out-of-bounds write can be triggered, leading to a potentially exploitable crash. This requires running the Mozilla Updater manually on the local system with the malicious MAR file in order to occur. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.

CVSS Metrics

  • v3.0•HIGH•Score: 7.8CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • debian•firefox-esr

    < 60.2.0esr-1 | < 60.2.0esr-1 | < 60.2.0esr-1 | < 60.2.0esr-1

  • debian•thunderbird

    < 1:60.2.1-1 | < 1:60.2.1-1 | < 1:60.2.1-1 | < 1:60.2.1-1

References (1)