CVE-2018-12378

Description

A use-after-free vulnerability can occur when an IndexedDB index is deleted while still in use by JavaScript code that is providing payload values to be stored. This results in a potentially exploitable crash. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 2.02% Top 20%
Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Firefox ESR
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/105280 vdb entry third party advisory
https://security.gentoo.org/glsa/201810-01 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2018:2693 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00011.html third party advisory mailing list
https://security.gentoo.org/glsa/201811-13 third party advisory vendor advisory
https://www.debian.org/security/2018/dsa-4327 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2018:3403 third party advisory vendor advisory
https://www.mozilla.org/security/advisories/mfsa2018-20/ vendor advisory
http://www.securitytracker.com/id/1041610 vdb entry third party advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1459383 issue tracking
https://access.redhat.com/errata/RHSA-2018:2692 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2018:3458 third party advisory vendor advisory
https://usn.ubuntu.com/3793-1/ third party advisory vendor advisory
https://www.mozilla.org/security/advisories/mfsa2018-21/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2018-25/ vendor advisory
https://usn.ubuntu.com/3761-1/ third party advisory vendor advisory
https://www.debian.org/security/2018/dsa-4287 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-12378?
CVE-2018-12378 has been scored as a critical severity vulnerability.
How to fix CVE-2018-12378?
To fix CVE-2018-12378, 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-2018-12378 being actively exploited in the wild?
It is possible that CVE-2018-12378 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-12378?
CVE-2018-12378 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird.
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