high 7.5

CVE-2019-11719 json

When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Net…

published 2019-07-23 7y ago modified 2026-06-17 4mo ago also EUVD-2019-3389

cvss: 7.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.3%; EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits: 0; none known

When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information disclosure. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

Patch / fix

fixed in 3 distros 7

Mozilla Firefox ESR 60.8
Mozilla Firefox 68
Mozilla Thunderbird 60.8

debian ubuntu red hat suse opensuse alpine arch linux

nss Debian 14, Debian 13, Debian 12 2:3.45-1
firefox-esr Debian 14, Debian 13, Debian 12 60.8.0esr-1
thunderbird Debian 14, Debian 13, Debian 12 1:60.8.0-1

debian advisories DEBIAN-CVE-2019-11719

nss Ubuntu 16.04 LTS 2:3.28.4-0ubuntu0.16.04.6
nss Ubuntu 18.04 LTS 2:3.35-2ubuntu2.3
firefox Ubuntu 16.04 LTS 68.0+build3-0ubuntu0.16.04.1
firefox Ubuntu 18.04 LTS 68.0+build3-0ubuntu0.18.04.1
thunderbird Ubuntu 16.04 LTS 1:60.8.0+build1-0ubuntu0.16.04.2
thunderbird Ubuntu 18.04 LTS 1:60.8.0+build1-0ubuntu0.18.04.1
nss Ubuntu Pro 14.04 LTS 2:3.28.4-0ubuntu0.14.04.5+esm1

ubuntu advisories UBUNTU-CVE-2019-11719

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

nss RHEL 7 3.53.1-3.el7_9
nspr RHEL 7 4.25.0-2.el7_9
nss-util RHEL 7 3.53.1-1.el7_9
nss-tools RHEL 7 3.53.1-3.el7_9
nss-softokn RHEL 7 3.53.1-6.el7_9
nss-sysinit RHEL 7 3.53.1-3.el7_9
nss-softokn-freebl RHEL 7 3.53.1-6.el7_9
nss RHEL 8 3.44.0-7.el8_0

red hat advisories RHSA-2020:4076 RHSA-2019:1951

MozillaFirefox SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +18 more 68.1.0-109.89.1
MozillaFirefox-branding-SLE SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +16 more 68-32.8.1
MozillaThunderbird SLE Workstation Extension 15 SP1, SLE Workstation Extension 15 68.1.1-3.51.1
MozillaFirefox SLES 12 SP4, SLES 12 SP3-BCL, SLES 12 SP2-BCL +15 more 60.8.0-109.83.3
mozilla-nss SLES 12 SP4, SLES 12 SP3-BCL, SLES 12 SP2-BCL +15 more 3.44.1-58.28.1
MozillaThunderbird SLE Workstation Extension 15 SP1, SLE Workstation Extension 15 60.8.0-3.46.2
MozillaFirefox SLE Module for Desktop Applications 15 SP1, SLE Module for Desktop Applications 15 60.8.0-3.51.4
mozilla-nss SLE Module for Server Applications 15 SP1, SLE Module for Basesystem 15 SP1, SLE Module for Basesystem 15 3.44.1-3.16.2

suse advisories SUSE-SU-2019:14246-1 SUSE-SU-2019:2620-1 SUSE-SU-2019:2515-1 SUSE-SU-2019:1861-2 SUSE-SU-2019:1960-1 SUSE-SU-2019:1869-1

firefox-esr openSUSE Tumbleweed 128.5.1-1.1
MozillaFirefox openSUSE Tumbleweed 92.0-1.2
MozillaThunderbird openSUSE Tumbleweed 91.1.1-1.1
mozilla-nss openSUSE Tumbleweed 3.69.1-1.2
MozillaThunderbird openSUSE Leap 15.1 68.1.1-lp151.2.13.1
enigmail openSUSE Leap 15.1 2.1.2-lp151.2.6.1
MozillaThunderbird openSUSE Leap 15.0 68.1.1-lp150.3.51.1
enigmail openSUSE Leap 15.0 2.1.2-lp150.34.1

opensuse advisories openSUSE-SU-2024:14572-1 openSUSE-SU-2024:10600-1 openSUSE-SU-2024:10601-1 openSUSE-SU-2024:11058-1 openSUSE-SU-2019:2249-1 openSUSE-SU-2019:2248-1

firefox-esr Alpine 3.10, Alpine 3.9 60.8.0-r0
firefox-esr Alpine 3.23, Alpine 3.22, Alpine 3.21 +10 more 68.0-r0

alpine advisories ALPINE-CVE-2019-11719

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

firefox Arch Linux 68.0-1

arch linux advisories AVG-1002

Is CVE-2019-11719 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-11719 updated 2026-11-05 cvss 7.5

nss: Out-of-bounds read when importing curve25519 private key

Red Hat Enterprise Linux 5 firefox Red Hat Enterprise Linux 6 nss, nss-tools, nss-sysinit Red Hat JBoss Enterprise Application Platform 6 nss
affected: no fix planned “Out of support scope”
Red Hat OpenShift Do 1 openshiftdo/odo-init-image-rhel7 1.1.3-2
fixed: vendor fix RHSA-2021:0949
Red Hat Enterprise Linux AppStream (v. 8) nss 3.44.0-7.el8_0, nspr 4.21.0-2.el8_0, nss-util 3.44.0-7.el8_0, nss-tools 3.44.0-7.el8_0, nss-softokn 3.44.0-7.el8_0, nss-sysinit 3.44.0-7.el8_0, +1 more
fixed: vendor fix RHSA-2019:1951
Red Hat Enterprise Linux Client (v. 7) nss 3.53.1-3.el7_9, nspr 4.25.0-2.el7_9, nss-util 3.53.1-1.el7_9, nss-tools 3.53.1-3.el7_9, nss-softokn 3.53.1-6.el7_9, nss-sysinit 3.53.1-3.el7_9, +1 more Red Hat Enterprise Linux Client Optional (v. 7) nss-devel 3.53.1-3.el7_9, nspr-devel 4.25.0-2.el7_9, nss-debuginfo 3.53.1-3.el7_9, nspr-debuginfo 4.25.0-2.el7_9, nss-util-devel 3.53.1-1.el7_9, nss-pkcs11-devel 3.53.1-3.el7_9, +4 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) nss-devel 3.53.1-3.el7_9, nspr-devel 4.25.0-2.el7_9, nss-debuginfo 3.53.1-3.el7_9, nspr-debuginfo 4.25.0-2.el7_9, nss-util-devel 3.53.1-1.el7_9, nss-pkcs11-devel 3.53.1-3.el7_9, +4 more Red Hat Enterprise Linux Server (v. 7) nss 3.53.1-3.el7_9, nspr 4.25.0-2.el7_9, nss-util 3.53.1-1.el7_9, nss-tools 3.53.1-3.el7_9, nss-softokn 3.53.1-6.el7_9, nss-sysinit 3.53.1-3.el7_9, +1 more Red Hat Enterprise Linux Server Optional (v. 7) nss-debuginfo 3.53.1-3.el7_9, nss-pkcs11-devel 3.53.1-3.el7_9 Red Hat Enterprise Linux Workstation (v. 7) nss 3.53.1-3.el7_9, nspr 4.25.0-2.el7_9, nss-util 3.53.1-1.el7_9, nss-tools 3.53.1-3.el7_9, nss-softokn 3.53.1-6.el7_9, nss-sysinit 3.53.1-3.el7_9, +1 more

+1 more productsfewer

Red Hat Enterprise Linux Workstation Optional (v. 7) nss-debuginfo 3.53.1-3.el7_9, nss-pkcs11-devel 3.53.1-3.el7_9

fixed: vendor fix RHSA-2020:4076
Red Hat Enterprise Linux 6 firefox Red Hat Enterprise Linux 7 firefox Red Hat Enterprise Linux 8 firefox Red Hat OpenShift Container Platform 4 nss-altfiles
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.29% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

Mozilla Firefox ESR
Mozilla Firefox
Mozilla Thunderbird

Classification

Weakness

CWE-125 Out-of-bounds Read

References

lists.opensuse.org /opensuse-security-announce/2019-07/msg00055.html
vendor-advisory
lists.opensuse.org /opensuse-security-announce/2019-07/msg00058.html
vendor-advisory
access.redhat.com /errata/RHSA-2019:1951
vendor-advisory
security.gentoo.org /glsa/201908-12
vendor-advisory
security.gentoo.org /glsa/201908-20
vendor-advisory
lists.opensuse.org /opensuse-security-announce/2019-08/msg00073.html
vendor-advisory
lists.opensuse.org /opensuse-security-announce/2019-10/msg00010.html
vendor-advisory
lists.opensuse.org /opensuse-security-announce/2019-10/msg00009.html
vendor-advisory
mozilla.org /security/advisories/mfsa2019-21/
vendor-advisory
mozilla.org /security/advisories/mfsa2019-22/
vendor-advisory
mozilla.org /security/advisories/mfsa2019-23/
vendor-advisory
bugzilla.mozilla.org /show_bug.cgi?id=1540541
issue-tracking, permissions-required, vendor-advisory
lists.debian.org /debian-lts-announce/2020/09/msg00029.html
mailing-list

Sources

CVE List CVE-2019-11719
NVD CVE-2019-11719

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

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