CVE-2018-5188

high-risk
Published 2018-10-18

Memory safety bugs present in Firefox 60, Firefox ESR 60, and Firefox ESR 52.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

Do I need to act?

~
3.0% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (19)

Affected Vendors

Debian Redhat Mozilla Canonical

References (38)

Third Party Advisory http://www.securityfocus.com/bid/104555
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2112
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2113
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2251
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2252
Issue Tracking https://bugzilla.mozilla.org/buglist.cgi?bug_id=1456189%2C1456975%2C1465898%2C13...
Mailing List https://lists.debian.org/debian-lts-announce/2018/06/msg00014.html
Mailing List https://lists.debian.org/debian-lts-announce/2018/07/msg00013.html
Third Party Advisory https://security.gentoo.org/glsa/201810-01
Third Party Advisory https://security.gentoo.org/glsa/201811-13
Third Party Advisory https://usn.ubuntu.com/3705-1/
Third Party Advisory https://usn.ubuntu.com/3714-1/
Third Party Advisory https://usn.ubuntu.com/3749-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4244
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-15/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-16/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-17/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-18/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-19/
Third Party Advisory http://www.securityfocus.com/bid/104555
and 18 more references
57
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 6/34 · Minimal
Exposure 19/34 · Moderate