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Fencer Vulns
medium 6.5

CVE-2022-46880 json

A missing check related to tex units could have led to a use-after-free and potentially exploitable crash.<br />*Note*: This advisory was a…

published 2022-12-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-49660

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

A missing check related to tex units could have led to a use-after-free and potentially exploitable crash.<br />*Note*: This advisory was added on December 13th, 2022 after we better understood the impact of the issue. The fix was included in the original release of Firefox 105. This vulnerability affects Firefox ESR < 102.6, Firefox < 105, and Thunderbird < 102.6.

Patch / fix

  • Mozilla Firefox ESR 102.6
  • Mozilla Firefox 105
  • Mozilla Thunderbird 102.6
  • firefox-esr Debian 14, Debian 13, Debian 12 102.6.0esr-1
  • thunderbird Debian 14, Debian 13, Debian 12 1:102.6.0-1

debian advisories DEBIAN-CVE-2022-46880

  • thunderbird Ubuntu 18.04 LTS 1:102.7.1+build2-0ubuntu0.18.04.1
  • thunderbird Ubuntu 20.04 LTS 1:102.7.1+build2-0ubuntu0.20.04.1
  • thunderbird Ubuntu 22.04 LTS 1:102.7.1+build2-0ubuntu0.22.04.1

ubuntu advisories UBUNTU-CVE-2022-46880

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 8 102.6.0-2.el8_7
  • thunderbird RHEL 9 102.6.0-2.el9_1
  • firefox RHEL 8 102.6.0-1.el8_7
  • firefox RHEL 9 102.6.0-1.el9_1
  • thunderbird RHEL 7 102.6.0-2.el7_9
  • firefox RHEL 7 102.6.0-1.el7_9
  • thunderbird RHEL 8.1 E4S 102.6.0-2.el8_1
  • thunderbird RHEL 8.4 EUS 102.6.0-2.el8_4

red hat advisories RHSA-2022:9074RHSA-2022:9077RHSA-2022:9080RHSA-2022:9075RHSA-2022:9067RHSA-2022:9078

  • MozillaThunderbird SLE Workstation Extension 15 SP4, SLE Module for Package Hub 15 SP4, openSUSE Leap 15.4 +1 more 102.6.0-150200.8.96.1
  • MozillaFirefox SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +10 more 102.6.0-150200.152.70.1
  • MozillaFirefox SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +7 more 102.6.0-150000.150.68.1
  • MozillaFirefox SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +6 more 102.6.0-112.142.1

suse advisories SUSE-SU-2022:4579-1SUSE-SU-2022:4462-1SUSE-SU-2022:4461-1SUSE-SU-2022:4460-1

  • MozillaThunderbird openSUSE Tumbleweed 102.6.0-1.1

opensuse advisories openSUSE-SU-2024:12571-1

  • firefox AlmaLinux 9 102.6.0-1.el9_1.alma
  • firefox AlmaLinux 8 102.6.0-1.el8_7.alma
  • thunderbird AlmaLinux 8 102.6.0-2.el8_7.alma
  • thunderbird AlmaLinux 9 102.6.0-2.el9_1.alma

almalinux advisories ALSA-2022:9065ALSA-2022:9067ALSA-2022:9074ALSA-2022:9080

  • firefox Rocky Linux 8 102.6.0-1.el8_7

rocky linux advisories RLSA-2022:9067

  • firefox-esr Alpine 3.23, Alpine 3.22, Alpine 3.21 +3 more 102.6.0-r0

alpine advisories ALPINE-CVE-2022-46880

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

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-2022-46880 updated cvss 7.5

Mozilla: Use-after-free in WebGL

  • Red Hat Enterprise Linux 6 firefox, thunderbird
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) firefox 102.6.0-1.el8_7, thunderbird 102.6.0-2.el8_7
    fixed: vendor fix RHSA-2022:9067
  • Red Hat Enterprise Linux AppStream (v. 9) firefox 102.6.0-1.el9_1, thunderbird 102.6.0-2.el9_1
    fixed: vendor fix RHSA-2022:9065
  • Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox 102.6.0-1.el8_2, thunderbird 102.6.0-2.el8_2
    fixed: vendor fix RHSA-2022:9070
  • Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox 102.6.0-1.el8_1, thunderbird 102.6.0-2.el8_1
    fixed: vendor fix RHSA-2022:9071
  • Red Hat Enterprise Linux AppStream E4S (v. 8.2) firefox 102.6.0-1.el8_2, thunderbird 102.6.0-2.el8_2
    fixed: vendor fix RHSA-2022:9070
  • Red Hat Enterprise Linux AppStream EUS (v.8.4) firefox 102.6.0-1.el8_4, thunderbird 102.6.0-2.el8_4
    fixed: vendor fix RHSA-2022:9069
  • Red Hat Enterprise Linux AppStream EUS (v.8.6) firefox 102.6.0-1.el8_6, thunderbird 102.6.0-2.el8_6
    fixed: vendor fix RHSA-2022:9068
show 3 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.0) firefox 102.6.0-1.el9_0, thunderbird 102.6.0-2.el9_0
    fixed: vendor fix RHSA-2022:9066
  • Red Hat Enterprise Linux AppStream TUS (v. 8.2) firefox 102.6.0-1.el8_2, thunderbird 102.6.0-2.el8_2
    fixed: vendor fix RHSA-2022:9070
  • Red Hat Enterprise Linux Client (v. 7) firefox 102.6.0-1.el7_9, thunderbird 102.6.0-2.el7_9 Red Hat Enterprise Linux Client Optional (v. 7) firefox 102.6.0-1.el7_9 Red Hat Enterprise Linux Server (v. 7) firefox 102.6.0-1.el7_9 Red Hat Enterprise Linux Server Optional (v. 7) firefox 102.6.0-1.el7_9, thunderbird 102.6.0-2.el7_9 Red Hat Enterprise Linux Workstation (v. 7) firefox 102.6.0-1.el7_9, thunderbird 102.6.0-2.el7_9 Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 102.6.0-1.el7_9
    fixed: vendor fix RHSA-2022:9072

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
none
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

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 Firefox ESR
  • Mozilla Firefox
  • Mozilla Thunderbird

Classification

Weakness

References

Sources

Fencer Vulns 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.