firefox: thunderbird: Potential memory corruption may occur when cloning certain objects
Published Oct 1, 2024
8.8
HIGHCVSS 3.1
EPSS 0.59%
Description
It is currently unknown if this issue is exploitable but a condition may arise where the structured clone of certain objects could lead to memory corruption. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<131
- Version
-
- Version unspecifiedStatusaffectedConstraints<128.3
- Version
-
- Version unspecifiedStatusaffectedConstraints<128.3
- Version unspecifiedStatusaffectedConstraints<131
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox | n/a |
| |||||||||
| Mozilla | Firefox ESR | n/a |
| |||||||||
| Mozilla | Thunderbird | n/a |
|
- < 128.3.0
- < 131.0
- < 128.3.0
- ≥ 129.0 · < 131.0
-
- Version 0StatusaffectedConstraints<131
- Version
-
- Version 0StatusaffectedConstraints<128.3
- Version
-
- Version 0StatusaffectedConstraints<128.3
- Version 0StatusaffectedConstraints<131
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox | n/a |
| |||||||||
| Mozilla | Firefox Esr | n/a |
| |||||||||
| Mozilla | Thunderbird | n/a |
|
Red Hat Enterprise Linux 7 Extended Lifecycle Support
firefox-0:128.3.0-1.el7_9
Fixed · RHSA-2024:7702
Red Hat Enterprise Linux 8
firefox-0:128.3.0-1.el8_10
Fixed · RHSA-2024:7700
Red Hat Enterprise Linux 8
thunderbird-0:128.3.0-1.el8_10
Fixed · RHSA-2024:7699
Red Hat Enterprise Linux 8.2 Advanced Update Support
firefox-0:128.3.0-1.el8_2
Fixed · RHSA-2024:7646
Red Hat Enterprise Linux 8.2 Advanced Update Support
thunderbird-0:128.3.0-1.el8_2
Fixed · RHSA-2024:7856
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
firefox-0:128.3.0-1.el8_4
Fixed · RHSA-2024:7703
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
thunderbird-0:128.3.0-1.el8_4
Fixed · RHSA-2024:7854
Red Hat Enterprise Linux 8.4 Telecommunications Update Service
firefox-0:128.3.0-1.el8_4
Fixed · RHSA-2024:7703
Red Hat Enterprise Linux 8.4 Telecommunications Update Service
thunderbird-0:128.3.0-1.el8_4
Fixed · RHSA-2024:7854
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
firefox-0:128.3.0-1.el8_4
Fixed · RHSA-2024:7703
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
thunderbird-0:128.3.0-1.el8_4
Fixed · RHSA-2024:7854
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
firefox-0:128.3.0-1.el8_6
Fixed · RHSA-2024:7704
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
thunderbird-0:128.3.0-1.el8_6
Fixed · RHSA-2024:8169
Red Hat Enterprise Linux 8.6 Telecommunications Update Service
firefox-0:128.3.0-1.el8_6
Fixed · RHSA-2024:7704
Red Hat Enterprise Linux 8.6 Telecommunications Update Service
thunderbird-0:128.3.0-1.el8_6
Fixed · RHSA-2024:8169
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
firefox-0:128.3.0-1.el8_6
Fixed · RHSA-2024:7704
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
thunderbird-0:128.3.0-1.el8_6
Fixed · RHSA-2024:8169
Red Hat Enterprise Linux 8.8 Extended Update Support
firefox-0:128.3.0-1.el8_8
Fixed · RHSA-2024:7842
Red Hat Enterprise Linux 8.8 Extended Update Support
thunderbird-0:128.3.1-1.el8_8
Fixed · RHSA-2024:8166
Red Hat Enterprise Linux 9
thunderbird-0:128.3.0-1.el9_4
Fixed · RHSA-2024:7552
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
firefox-0:128.3.0-1.el9_0
Fixed · RHSA-2024:7621
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
thunderbird-0:128.3.0-1.el9_0
Fixed · RHSA-2024:7855
Red Hat Enterprise Linux 9.2 Extended Update Support
firefox-0:128.3.0-1.el9_2
Fixed · RHSA-2024:7622
Red Hat Enterprise Linux 9.2 Extended Update Support
thunderbird-0:128.3.0-1.el9_2
Fixed · RHSA-2024:7853
Red Hat Enterprise Linux 10
firefox
Affected
Red Hat Enterprise Linux 10
thunderbird
Affected
Red Hat Enterprise Linux 6
firefox
Out of support scope
Red Hat Enterprise Linux 6
thunderbird
Out of support scope
Red Hat Enterprise Linux 7
thunderbird
Out of support scope
Red Hat Enterprise Linux 9
firefox
Affected
Red Hat Enterprise Linux 9
firefox-flatpak-container
Affected
Red Hat Enterprise Linux 9
thunderbird-flatpak-container
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | firefox-0:128.3.0-1.el7_9 | Fixed | RHSA-2024:7702 |
| Red Hat Enterprise Linux 8 | firefox-0:128.3.0-1.el8_10 | Fixed | RHSA-2024:7700 |
| Red Hat Enterprise Linux 8 | thunderbird-0:128.3.0-1.el8_10 | Fixed | RHSA-2024:7699 |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | firefox-0:128.3.0-1.el8_2 | Fixed | RHSA-2024:7646 |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | thunderbird-0:128.3.0-1.el8_2 | Fixed | RHSA-2024:7856 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | firefox-0:128.3.0-1.el8_4 | Fixed | RHSA-2024:7703 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | thunderbird-0:128.3.0-1.el8_4 | Fixed | RHSA-2024:7854 |
| Red Hat Enterprise Linux 8.4 Telecommunications Update Service | firefox-0:128.3.0-1.el8_4 | Fixed | RHSA-2024:7703 |
| Red Hat Enterprise Linux 8.4 Telecommunications Update Service | thunderbird-0:128.3.0-1.el8_4 | Fixed | RHSA-2024:7854 |
| Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | firefox-0:128.3.0-1.el8_4 | Fixed | RHSA-2024:7703 |
| Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | thunderbird-0:128.3.0-1.el8_4 | Fixed | RHSA-2024:7854 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | firefox-0:128.3.0-1.el8_6 | Fixed | RHSA-2024:7704 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | thunderbird-0:128.3.0-1.el8_6 | Fixed | RHSA-2024:8169 |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | firefox-0:128.3.0-1.el8_6 | Fixed | RHSA-2024:7704 |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | thunderbird-0:128.3.0-1.el8_6 | Fixed | RHSA-2024:8169 |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | firefox-0:128.3.0-1.el8_6 | Fixed | RHSA-2024:7704 |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | thunderbird-0:128.3.0-1.el8_6 | Fixed | RHSA-2024:8169 |
| Red Hat Enterprise Linux 8.8 Extended Update Support | firefox-0:128.3.0-1.el8_8 | Fixed | RHSA-2024:7842 |
| Red Hat Enterprise Linux 8.8 Extended Update Support | thunderbird-0:128.3.1-1.el8_8 | Fixed | RHSA-2024:8166 |
| Red Hat Enterprise Linux 9 | thunderbird-0:128.3.0-1.el9_4 | Fixed | RHSA-2024:7552 |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | firefox-0:128.3.0-1.el9_0 | Fixed | RHSA-2024:7621 |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | thunderbird-0:128.3.0-1.el9_0 | Fixed | RHSA-2024:7855 |
| Red Hat Enterprise Linux 9.2 Extended Update Support | firefox-0:128.3.0-1.el9_2 | Fixed | RHSA-2024:7622 |
| Red Hat Enterprise Linux 9.2 Extended Update Support | thunderbird-0:128.3.0-1.el9_2 | Fixed | RHSA-2024:7853 |
| Red Hat Enterprise Linux 10 | firefox | Affected | n/a |
| Red Hat Enterprise Linux 10 | thunderbird | Affected | n/a |
| Red Hat Enterprise Linux 6 | firefox | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | thunderbird | Out of support scope | n/a |
| Red Hat Enterprise Linux 9 | firefox | Affected | n/a |
| Red Hat Enterprise Linux 9 | firefox-flatpak-container | Affected | n/a |
| Red Hat Enterprise Linux 9 | thunderbird-flatpak-container | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Oct 1, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2024–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (5 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.59% (0.00587) | 46.14th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.56% (0.00557) | 41.81th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.22% (0.00216) | 42.22th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00045) | 17.70th | v3 (v2023.03.01) |
| Oct 2, 2024 | 0.04% (0.00045) | 16.32th | v3 (v2023.03.01) |
References (9)
- https://access.redhat.com/security/cve/CVE-2024-9396 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1912471 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=2315954 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2024-9396
- https://www.cve.org/CVERecord?id=CVE-2024-9396
- https://www.mozilla.org/security/advisories/mfsa2024-46/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-47/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-49/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-50/ Vendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2024-9396 | Vendor Advisory | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1912471 | Issue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2315954 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2024-9396 | ||
| https://www.cve.org/CVERecord?id=CVE-2024-9396 | ||
| https://www.mozilla.org/security/advisories/mfsa2024-46/ | Vendor Advisory | |
| https://www.mozilla.org/security/advisories/mfsa2024-47/ | Vendor Advisory | |
| https://www.mozilla.org/security/advisories/mfsa2024-49/ | Vendor Advisory | |
| https://www.mozilla.org/security/advisories/mfsa2024-50/ | Vendor Advisory |
Change history (0)
No recorded changes yet.