CVE-2018-18501

high-risk
Published 2019-02-05

Mozilla developers and community members reported memory safety bugs present in Firefox 64 and Firefox ESR 60.4. 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 < 60.5, Firefox ESR < 60.5, and Firefox < 65.

Do I need to act?

~
4.6% 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 (17)

Affected Vendors

Debian Redhat Mozilla Canonical

References (34)

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html
Third Party Advisory http://www.securityfocus.com/bid/106781
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0218
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0219
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0269
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0270
Mailing List https://lists.debian.org/debian-lts-announce/2019/01/msg00025.html
Mailing List https://lists.debian.org/debian-lts-announce/2019/02/msg00024.html
Third Party Advisory https://security.gentoo.org/glsa/201903-04
https://security.gentoo.org/glsa/201904-07
Third Party Advisory https://usn.ubuntu.com/3874-1/
Third Party Advisory https://usn.ubuntu.com/3897-1/
Third Party Advisory https://www.debian.org/security/2019/dsa-4376
Third Party Advisory https://www.debian.org/security/2019/dsa-4392
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-01/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-02/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-03/
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html
Third Party Advisory http://www.securityfocus.com/bid/106781
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0218
and 14 more references
59
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 8/34 · Low
Exposure 19/34 · Moderate