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TI-2023-00727 Aliases CVE-2023-0767GHSA-687w-wqw8-qq8j

An attacker could construct a PKCS 12 cert bundle in such a way that could allow for…

Priority MEDIUM 42Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.

Summary

An attacker could construct a PKCS 12 cert bundle in such a way that could allow for arbitrary memory writes via PKCS 12 Safe Bag attributes being mishandled. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00817 57th percentileScored 2026-11-07
Fix Fixed Firefox (Mozilla): 110Thunderbird (Mozilla): 102.8+1 more productRed Hat: 16 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 110110Patch availableCNA
MozillaThunderbirdbefore 102.8102.8Patch availableCNA
MozillaFirefox ESRbefore 102.8102.8Patch availableCNA
  • Firefox VendorMozilla Affected before 110 Fixed in 110 Patch available CNA
  • Thunderbird VendorMozilla Affected before 102.8 Fixed in 102.8 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 102.8 Fixed in 102.8 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 110.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 102.8VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 102.8VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 110.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 102.8 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 102.8 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 110
  • Fix · CNA Thunderbird (Mozilla) Fixed in 102.8
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 102.8

Red Hat 16 advisories

  • RHSA-2023:1677 Released 2023-04-10 · Red Hat rating Important
    Red Hat Virtualization Host 4.4.z SP 1 security update batch#5 (oVirt-4.5.3-5)
    • Red Hat Virtualization 4 Hypervisor for RHEL 8 redhat-virtualization-host-4.5.3-202304051438_8.6, redhat-virtualization-host-image-update-4.5.3-202304051438_8.6
  • RHSA-2023:1479 Released 2023-03-27 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox-102.9.0-4.el8_1
  • RHSA-2023:1472 Released 2023-03-27 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) thunderbird-102.9.0-2.el8_4
Show 13 more Red Hat advisories
  • RHSA-2023:1444 Released 2023-03-23 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) firefox-102.9.0-4.el8_4
  • RHSA-2023:1445 Released 2023-03-23 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-102.9.0-4.el8_2
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) firefox-102.9.0-4.el8_2
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) firefox-102.9.0-4.el8_2
  • RHSA-2023:1443 Released 2023-03-23 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) thunderbird-102.9.0-2.el8_2
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) thunderbird-102.9.0-2.el8_2
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) thunderbird-102.9.0-2.el8_2
  • RHSA-2023:1442 Released 2023-03-23 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird-102.9.0-2.el8_1
  • RHSA-2023:1436 Released 2023-03-23 · Red Hat rating Important
    nss security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) nss-3.44.0-11.el8_1, nss-devel-3.44.0-11.el8_1, nss-softokn-3.44.0-11.el8_1 +7
  • RHSA-2023:1406 Released 2023-03-22 · Red Hat rating Important
    nss security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) nss-3.53.1-13.el8_2, nss-devel-3.53.1-13.el8_2, nss-softokn-3.53.1-13.el8_2 +7
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) nss-3.53.1-13.el8_2, nss-devel-3.53.1-13.el8_2, nss-softokn-3.53.1-13.el8_2 +7
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) nss-3.53.1-13.el8_2, nss-devel-3.53.1-13.el8_2, nss-softokn-3.53.1-13.el8_2 +7
  • RHSA-2023:1369 Released 2023-03-21 · Red Hat rating Important
    nss security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) nss-3.79.0-11.el8_6, nss-devel-3.79.0-11.el8_6, nss-softokn-3.79.0-11.el8_6 +7
  • RHSA-2023:1370 Released 2023-03-21 · Red Hat rating Important
    nss security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) nss-3.67.0-8.el8_4, nss-devel-3.67.0-8.el8_4, nss-softokn-3.67.0-8.el8_4 +7
  • RHSA-2023:1366 Released 2023-03-21 · Red Hat rating Important
    nss security update
    • Red Hat Enterprise Linux Server (v. 6 ELS) nss-3.44.0-13.el6_10, nss-devel-3.44.0-13.el6_10, nss-sysinit-3.44.0-13.el6_10 +1
    • Red Hat Enterprise Linux Server Optional (v. 6 ELS) nss-pkcs11-devel-3.44.0-13.el6_10
  • RHSA-2023:1368 Released 2023-03-21 · Red Hat rating Important
    nss security and bug fix update
    • Red Hat Enterprise Linux AppStream (v. 9) nspr-4.34.0-17.el9_1, nspr-devel-4.34.0-17.el9_1, nss-3.79.0-17.el9_1 +9
  • RHSA-2023:1365 Released 2023-03-21 · Red Hat rating Important
    nss security and bug fix update
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) nspr-4.34.0-17.el9_0, nspr-devel-4.34.0-17.el9_0, nss-3.79.0-17.el9_0 +9
  • RHSA-2023:1332 Released 2023-03-20 · Red Hat rating Important
    nss security update
    • Red Hat Enterprise Linux Client (v. 7) nss-3.79.0-5.el7_9, nss-sysinit-3.79.0-5.el7_9, nss-tools-3.79.0-5.el7_9
    • Red Hat Enterprise Linux Client Optional (v. 7) nss-devel-3.79.0-5.el7_9, nss-pkcs11-devel-3.79.0-5.el7_9
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) nss-devel-3.79.0-5.el7_9, nss-pkcs11-devel-3.79.0-5.el7_9
    • Red Hat Enterprise Linux Server (v. 7) nss-3.79.0-5.el7_9, nss-3.79.0-5.el7_9.ppc, nss-devel-3.79.0-5.el7_9 +3
    • Red Hat Enterprise Linux Server Optional (v. 7) nss-pkcs11-devel-3.79.0-5.el7_9, nss-pkcs11-devel-3.79.0-5.el7_9.ppc
    • Red Hat Enterprise Linux Workstation (v. 7) nss-3.79.0-5.el7_9, nss-devel-3.79.0-5.el7_9, nss-sysinit-3.79.0-5.el7_9 +1
    • Red Hat Enterprise Linux Workstation Optional (v. 7) nss-pkcs11-devel-3.79.0-5.el7_9
  • RHSA-2023:1252 Released 2023-03-15 · Red Hat rating Important
    nss security update
    • Red Hat Enterprise Linux AppStream (v. 8) nss-3.79.0-11.el8_7, nss-devel-3.79.0-11.el8_7, nss-softokn-3.79.0-11.el8_7 +7

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Mozilla Firefox 110

    17 records Highest priority Priority HIGH 9 HIGH, 7 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2023-11012 Insufficiently protected credentials in Mozilla FirefoxPriority HIGH 73
    • TI-2023-11011 Use after free in Mozilla FirefoxPriority HIGH 73
    • TI-2023-11009 Incorrect type conversion in Mozilla FirefoxPriority HIGH 73
    Show all 17 records →
  • Release ·

    Mozilla Firefox ESR 102.8

    14 records Highest priority Priority HIGH 7 HIGH, 6 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2023-11011 Use after free in Mozilla FirefoxPriority HIGH 73
    • TI-2023-11009 Incorrect type conversion in Mozilla FirefoxPriority HIGH 73
    • TI-2023-11007 Use after free in Mozilla FirefoxPriority HIGH 73
    Show all 14 records →
Show 1 more group
  • Release ·

    Mozilla Thunderbird 102.8

    13 records Highest priority Priority HIGH 6 HIGH, 5 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2023-11011 Use after free in Mozilla FirefoxPriority HIGH 73
    • TI-2023-11009 Incorrect type conversion in Mozilla FirefoxPriority HIGH 73
    • TI-2023-11007 Use after free in Mozilla FirefoxPriority HIGH 73
    Show all 13 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2023:1252
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:1368
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2023:1406, RHSA-2023:1443, RHSA-2023:1445
Red Hat Enterprise Linux AppStream E4S (v. 8.1)Fixed RHSA-2023:1436, RHSA-2023:1442, RHSA-2023:1479
Red Hat Enterprise Linux AppStream E4S (v. 8.2)Fixed RHSA-2023:1406, RHSA-2023:1443, RHSA-2023:1445
Red Hat Enterprise Linux AppStream EUS (v.8.4)Fixed RHSA-2023:1370, RHSA-2023:1444, RHSA-2023:1472
Red Hat Enterprise Linux AppStream EUS (v.8.6)Fixed RHSA-2023:1369
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2023:1365
Red Hat Enterprise Linux AppStream TUS (v. 8.2)Fixed RHSA-2023:1406, RHSA-2023:1443, RHSA-2023:1445
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2023:1332
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2023:1332
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2023:1332
Red Hat Enterprise Linux Server (v. 6 ELS)Fixed RHSA-2023:1366
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2023:1332
Red Hat Enterprise Linux Server Optional (v. 6 ELS)Fixed RHSA-2023:1366
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2023:1332
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2023:1332
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2023:1332
Red Hat Virtualization 4 Hypervisor for RHEL 8Fixed RHSA-2023:1677
Not affected: 5 products
  • RHEL 8-based RHEV-H for RHEV 4 (build requirements)
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-0767
  2. 2026-10-03 Alias added: GHSA-687w-wqw8-qq8j

References

Advisory 4

Other 1

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences