CVE-2019-17005

high-risk
Published 2020-01-08

The plain text serializer used a fixed-size array for the number of <ol> elements it could process; however it was possible to overflow the static-sized array leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.

Do I need to act?

~
2.9% 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 (7)

Affected Vendors

Mozilla Canonical Opensuse

References (24)

Issue Tracking http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html
Issue Tracking http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html
Third Party Advisory https://access.redhat.com/errata/RHSA-2020:0292
Third Party Advisory https://access.redhat.com/errata/RHSA-2020:0295
Exploit https://bugzilla.mozilla.org/show_bug.cgi?id=1584170
Third Party Advisory https://security.gentoo.org/glsa/202003-02
Third Party Advisory https://security.gentoo.org/glsa/202003-10
Third Party Advisory https://usn.ubuntu.com/4241-1/
Third Party Advisory https://usn.ubuntu.com/4335-1/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-36/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-37/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-38/
Issue Tracking http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html
Issue Tracking http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html
Third Party Advisory https://access.redhat.com/errata/RHSA-2020:0292
Third Party Advisory https://access.redhat.com/errata/RHSA-2020:0295
Exploit https://bugzilla.mozilla.org/show_bug.cgi?id=1584170
Third Party Advisory https://security.gentoo.org/glsa/202003-02
Third Party Advisory https://security.gentoo.org/glsa/202003-10
Third Party Advisory https://usn.ubuntu.com/4241-1/
and 4 more references
50
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 6/34 · Minimal
Exposure 14/34 · Moderate