CVE-2018-12405

high-risk
Published 2019-02-28

Mozilla developers and community members reported memory safety bugs present in Firefox 63 and Firefox ESR 60.3. 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 < 60.4, Firefox ESR < 60.4, and Firefox < 64.

Do I need to act?

!
10.3% chance of exploitation in next 30 days
EPSS score — higher than 90% of all CVEs
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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 (17)

Affected Vendors

Debian Redhat Mozilla Canonical

References (30)

Third Party Advisory http://www.securityfocus.com/bid/106168
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3831
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3833
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0159
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0160
Broken Link https://bugzilla.mozilla.org/buglist.cgi?bug_id=1494752%2C1498765%2C1503326%2C15...
Third Party Advisory https://lists.debian.org/debian-lts-announce/2018/12/msg00002.html
Third Party Advisory https://security.gentoo.org/glsa/201903-04
Third Party Advisory https://usn.ubuntu.com/3844-1/
Third Party Advisory https://usn.ubuntu.com/3868-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4354
Third Party Advisory https://www.debian.org/security/2019/dsa-4362
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-29/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-30/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-31/
Third Party Advisory http://www.securityfocus.com/bid/106168
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3831
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3833
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0159
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0160
and 10 more references
62
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 11/34 · Low
Exposure 19/34 · Moderate