High severity · published Oct 18, 2018
CVE-2018-12379
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
7.8
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 60.2.0; before 62.0 · source: NVD
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.6 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.5; 7.6 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
7.6 · source: NVD
EL
Enterprise Linux Workstation · Redhat
6.0; 7.0 · source: NVD
TH
Thunderbird · Mozilla
before 60.2.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-12379
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-12379
Third Party Advisory
http://www.securityfocus.com/bid/105280
Third Party Advisory
http://www.securitytracker.com/id/1041610
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2692
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2693
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3403
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3458
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