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TI-2024-10850 Aliases CVE-2024-11704GHSA-h8gv-f7pf-7c4p

Double free in Mozilla Firefox

Priority MEDIUM 51CWE-415Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 5 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-415 and the CVSS impact.

Summary

A double-free issue could have occurred in `sec_pkcs7_decoder_start_decrypt()` when handling an error path. Under specific conditions, the same symmetric key could have been freed twice, potentially leading to memory corruption. This vulnerability affects Firefox < 133, Thunderbird < 133, Firefox ESR < 128.7, and Thunderbird < 128.7.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00913 60th percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 133Thunderbird (Mozilla): 133, 128.7+1 more productRed Hat: 5 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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 133133Patch availableCNA
MozillaThunderbirdbefore 133133Patch availableCNA
MozillaFirefox ESRbefore 128.7128.7Patch availableCNA
MozillaThunderbirdbefore 128.7128.7Patch availableCNA
  • Firefox VendorMozilla Affected before 133 Fixed in 133 Patch available CNA
  • Thunderbird VendorMozilla Affected before 133 Fixed in 133 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 128.7 Fixed in 128.7 Patch available CNA
  • Thunderbird VendorMozilla Affected before 128.7 Fixed in 128.7 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*before 128.7.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 133.0VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 128.7.0; 129.0 to before 133.0VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* Versions before 128.7.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 133.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 128.7.0; 129.0 to before 133.0 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 133
  • Fix · CNA Thunderbird (Mozilla) Fixed in 133
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 128.7
  • Fix · CNA Thunderbird (Mozilla) Fixed in 128.7

Fixed in the same release

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

  • Release ·

    Mozilla Firefox 133

    17 records Highest priority Priority MEDIUM 7 MEDIUM, 10 LOW

    Other records, highest priority first

    • TI-2024-10844 A flaw in handling fullscreen transitions may have inadvertently caused the application…Priority MEDIUM 50
    • TI-2024-10839 The executable file warning was not presented when downloading .library-ms files.Priority MEDIUM 50
    • TI-2024-10851 NULL pointer dereference in Mozilla FirefoxPriority MEDIUM 46
    Show all 17 records →
  • Release ·

    Mozilla Thunderbird 133

    16 records Highest priority Priority MEDIUM 7 MEDIUM, 9 LOW

    Other records, highest priority first

    • TI-2024-10844 A flaw in handling fullscreen transitions may have inadvertently caused the application…Priority MEDIUM 50
    • TI-2024-10839 The executable file warning was not presented when downloading .library-ms files.Priority MEDIUM 50
    • TI-2024-10851 NULL pointer dereference in Mozilla FirefoxPriority MEDIUM 46
    Show all 16 records →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 10Affected—
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9Affected—

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-11704
  2. 2026-10-03 Alias added: GHSA-h8gv-f7pf-7c4p

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