CVE-2019-11729

Description

Empty or malformed p256-ECDH public keys may trigger a segmentation fault due values being improperly sanitized before being copied into memory and used. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.54%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2019-21/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2019-22/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2019-23/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1515342 issue tracking permissions required vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.html vendor advisory
https://access.redhat.com/errata/RHSA-2019:1951 vendor advisory
https://security.gentoo.org/glsa/201908-12 vendor advisory
https://security.gentoo.org/glsa/201908-20 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00073.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html vendor advisory
https://access.redhat.com/errata/RHSA-2019:4190 vendor advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html mailing list

Frequently Asked Questions

What is the severity of CVE-2019-11729?
CVE-2019-11729 has been scored as a high severity vulnerability.
How to fix CVE-2019-11729?
To fix CVE-2019-11729, 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-2019-11729 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-11729 is being actively exploited. 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-2019-11729?
CVE-2019-11729 affects Mozilla Firefox ESR, Mozilla Firefox, Mozilla Thunderbird.
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