CVE-2018-12389

Description

Mozilla developers and community members reported memory safety bugs present in Firefox ESR 60.2. 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 Firefox ESR < 60.3 and Thunderbird < 60.3.

Category

8.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.17% Top 25%
Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox ESR
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/105769 vdb entry third party advisory
https://www.debian.org/security/2018/dsa-4324 third party advisory vendor advisory
https://www.mozilla.org/security/advisories/mfsa2018-28/ vendor advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00011.html third party advisory mailing list
https://security.gentoo.org/glsa/201811-04 third party advisory vendor advisory
https://security.gentoo.org/glsa/201811-13 third party advisory vendor advisory
https://www.debian.org/security/2018/dsa-4337 third party advisory vendor advisory
https://www.mozilla.org/security/advisories/mfsa2018-27/ vendor advisory
https://access.redhat.com/errata/RHSA-2018:3005 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2018:3006 third party advisory vendor advisory
https://usn.ubuntu.com/3868-1/ third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2018:3532 third party advisory vendor advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1498460%2C1499198 issue tracking vendor advisory broken link
http://www.securityfocus.com/bid/105723 vdb entry third party advisory
https://access.redhat.com/errata/RHSA-2018:3531 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html third party advisory mailing list
http://www.securitytracker.com/id/1041944 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-12389?
CVE-2018-12389 has been scored as a high severity vulnerability.
How to fix CVE-2018-12389?
To fix CVE-2018-12389, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-12389 being actively exploited in the wild?
It is possible that CVE-2018-12389 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-12389?
CVE-2018-12389 affects Mozilla Firefox ESR, Mozilla Thunderbird.
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