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Fencer Intel
medium 6.5

CVE-2022-1097 json

<code>NSSToken</code> objects were referenced via direct points, and could have been accessed in an unsafe way on different threads, leadin…

published 3y ago modified 4mo ago also EUVD-2022-24440

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

<code>NSSToken</code> objects were referenced via direct points, and could have been accessed in an unsafe way on different threads, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

Patch / fix

  • Mozilla Thunderbird 91.8
  • Mozilla Firefox 99
  • Mozilla Firefox ESR 91.8
  • firefox-esr Debian 14, Debian 13, Debian 12 91.8.0esr-1
  • thunderbird Debian 14, Debian 13, Debian 12 1:91.8.0-1

debian advisories DEBIAN-CVE-2022-1097

  • firefox Ubuntu 18.04 LTS 99.0+build2-0ubuntu0.18.04.2
  • firefox Ubuntu 20.04 LTS 99.0+build2-0ubuntu0.20.04.2
  • firefox Ubuntu 22.04 LTS 1:1snap1-0ubuntu1
  • thunderbird Ubuntu 18.04 LTS 1:91.8.1+build1-0ubuntu0.18.04.1
  • thunderbird Ubuntu 20.04 LTS 1:91.8.1+build1-0ubuntu0.20.04.1

ubuntu advisories UBUNTU-CVE-2022-1097

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

  • thunderbird RHEL 8 91.8.0-1.el8_5
  • thunderbird RHEL 7 91.8.0-1.el7_9
  • firefox RHEL 7 91.8.0-1.el7_9
  • firefox RHEL 8 91.8.0-1.el8_5
  • thunderbird RHEL 8.2 EUS 91.8.0-1.el8_2
  • thunderbird RHEL 8.4 EUS 91.8.0-1.el8_4
  • thunderbird RHEL 8.1 E4S 91.8.0-1.el8_1
  • firefox RHEL 8.4 EUS 91.8.0-1.el8_4

red hat advisories RHSA-2022:1326RHSA-2022:1305RHSA-2022:1301RHSA-2022:1303RHSA-2022:1302RHSA-2022:1284

  • MozillaThunderbird SLE Workstation Extension 15 SP3, SLE Module for Package Hub 15 SP4, SLE Module for Package Hub 15 SP3 +1 more 91.8.0-150200.8.65.1
  • mozilla-nss SLES for SAP 15 SP2, SLES for SAP 15 SP1, SLES for SAP 15 +23 more 3.68.3-150000.3.67.1
  • MozillaFirefox SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +8 more 91.8.0-150200.152.26.1
  • MozillaFirefox SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +7 more 91.8.0-150000.150.27.1
  • MozillaFirefox SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +11 more 91.8.0-112.98.1
  • mozilla-nss SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +11 more 3.68.3-58.69.1
  • mozilla-nss SLES 11 SP4-LTSS, SLE Point of Sale 11 SP3 3.68.3-47.25.1
  • MozillaFirefox SLES 11 SP4-LTSS 91.8.0-78.170.1

suse advisories SUSE-SU-2022:1176-1SUSE-SU-2022:1149-1SUSE-SU-2022:1127-1SUSE-RU-2022:1125-1SUSE-RU-2022:1114-1SUSE-SU-2022:1113-1

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 99.0-1.1
  • MozillaFirefox openSUSE Leap 15.3 91.8.0-150200.152.26.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:11975-1openSUSE-SU-2022:1127-1

  • thunderbird AlmaLinux 8 91.8.0-1.el8_5.alma
  • thunderbird AlmaLinux 8 91.8.0-1.el8_5.alma.plus
  • firefox AlmaLinux 8 91.8.0-1.el8_5.alma

almalinux advisories ALSA-2022:1301ALSA-2022:1287

  • thunderbird Rocky Linux 8 91.8.0-1.el8_5
  • firefox Rocky Linux 8 91.8.0-1.el8_5

rocky linux advisories RLSA-2022:1301RLSA-2022:1287

  • nss Alpine 3.14, Alpine 3.13, Alpine 3.12 3.68.3-r0
  • nss Alpine 3.15 3.72.1-r1
  • nss Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 3.76.1-r0
  • firefox Alpine 3.23, Alpine 3.22, Alpine 3.21 +5 more 99.0-r0
  • librewolf Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 99.0-r0
  • firefox-esr Alpine 3.23, Alpine 3.22, Alpine 3.21 +6 more 91.8.0-r0
  • thunderbird Alpine 3.23, Alpine 3.22, Alpine 3.21 +5 more 91.8.0-r0

alpine advisories ALPINE-CVE-2022-1097

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 99.0-1

arch linux advisories AVG-2711

Is CVE-2022-1097 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.

Check with Fencer

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-2022-1097 updated cvss 7.5

Mozilla: Use-after-free in NSSToken objects

  • Red Hat Enterprise Linux 6 firefox, thunderbird
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) firefox 91.8.0-1.el8_5, thunderbird 91.8.0-1.el8_5
    fixed: vendor fix RHSA-2022:1287
  • Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox 91.8.0-1.el8_1, thunderbird 91.8.0-1.el8_1
    fixed: vendor fix RHSA-2022:1283
  • Red Hat Enterprise Linux AppStream EUS (v. 8.2) firefox 91.8.0-1.el8_2, thunderbird 91.8.0-1.el8_2
    fixed: vendor fix RHSA-2022:1286
  • Red Hat Enterprise Linux AppStream EUS (v.8.4) firefox 91.8.0-1.el8_4, thunderbird 91.8.0-1.el8_4
    fixed: vendor fix RHSA-2022:1285
  • Red Hat Enterprise Linux Client (v. 7) firefox 91.8.0-1.el7_9, thunderbird 91.8.0-1.el7_9 Red Hat Enterprise Linux Client Optional (v. 7) firefox 91.8.0-1.el7_9 Red Hat Enterprise Linux Server (v. 7) firefox 91.8.0-1.el7_9 Red Hat Enterprise Linux Server Optional (v. 7) firefox 91.8.0-1.el7_9, thunderbird 91.8.0-1.el7_9 Red Hat Enterprise Linux Workstation (v. 7) firefox 91.8.0-1.el7_9, thunderbird 91.8.0-1.el7_9 Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 91.8.0-1.el7_9
    fixed: vendor fix RHSA-2022:1284
  • Red Hat Enterprise Linux 9 firefox, firefox-x11, thunderbird
    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

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=1745667 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

  • Mozilla Thunderbird
  • Mozilla Firefox
  • Mozilla Firefox ESR

Classification

Weakness

References

Sources

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.