CVE-2019-11740

moderate-risk
Published 2019-09-27

Mozilla developers and community members reported memory safety bugs present in Firefox 68, Firefox ESR 68, and Firefox 60.8. 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 Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.

Do I need to act?

~
1.5% 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
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (8)

Affected Vendors

Mozilla Canonical Opensuse

References (24)

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
Issue Tracking https://bugzilla.mozilla.org/buglist.cgi?bug_id=1563133%2C1573160
Third Party Advisory https://security.gentoo.org/glsa/201911-07
Third Party Advisory https://usn.ubuntu.com/4150-1/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-25/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-26/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-27/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-29/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-30/
Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
Issue Tracking https://bugzilla.mozilla.org/buglist.cgi?bug_id=1563133%2C1573160
Third Party Advisory https://security.gentoo.org/glsa/201911-07
Third Party Advisory https://usn.ubuntu.com/4150-1/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-25/
and 4 more references
48
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 4/34 · Minimal
Exposure 14/34 · Moderate