Mozilla Firefox up to 115.23.1 WASM JIT Analysis denial of service

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.7 | $0-$5k | 0.00 |
Summary
A vulnerability has been found in Mozilla Firefox and classified as problematic. The impacted element is an unknown function of the component WASM JIT Analysis. The manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2023-4046. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.
Details
A vulnerability, which was classified as problematic, has been found in Mozilla Firefox (Web Browser). This issue affects an unknown part of the component WASM JIT Analysis. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:
In some circumstances, a stale value could have been used for a global variable in WASM JIT analysis. This resulted in incorrect compilation and a potentially exploitable crash in the content process. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
The weakness was disclosed 08/01/2023. It is possible to read the advisory at mozilla.org. The identification of this vulnerability is CVE-2023-4046 since 08/01/2023. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.
The vulnerability scanner Nessus provides a plugin with the ID 239763 (TencentOS Server 4: thunderbird (TSSA-2024:0450)), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 116 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.
The vulnerability is also documented in the vulnerability database at Tenable (239763). Be aware that VulDB is the high quality source for vulnerability data.
Product
Type
Vendor
Name
Version
- 0.2
- 0.3
- 0.4
- 0.5
- 0.6
- 0.7
- 0.7.1
- 0.7.2
- 0.7.3
- 0.8
- 0.9
- 0.9.1
- 0.9.2
- 0.9.2.1
- 0.9.3
- 0.9.4
- 0.9.4.1
- 0.9.5
- 0.9.6
- 0.9.7
- 0.9.8
- 0.9.9
- 0.9.35
- 0.9.48
- 0.10
- 0.10.1
- 1.0
- 1.0.1
- 1.0.2
- 1.0.3
- 1.0.4
- 1.0.5
- 1.0.6
- 1.0.7
- 1.0.8
- 1.0.9
- 1.1
- 1.1.8
- 1.2
- 1.2.1
- 1.3
- 1.3.1
- 1.4
- 1.4.1
- 1.4.2
- 1.4.4
- 1.5
- 1.5.0.1
- 1.5.0.2
- 1.5.0.3
- 1.5.0.4
- 1.5.0.5
- 1.5.0.6
- 1.5.0.7
- 1.5.0.8
- 1.5.0.9
- 1.5.0.10
- 1.5.0.11
- 1.5.0.12
- 1.5.0.14
- 1.5.1
- 1.5.2
- 1.5.3
- 1.5.4
- 1.5.5
- 1.5.6
- 1.5.7
- 1.5.8
- 1.6
- 1.7
- 1.7.1
- 1.7.2
- 1.7.3
- 1.8
- 2
- 2.0
- 2.0 .4
- 2.0 8
- 2.0.0.1
- 2.0.0.2
- 2.0.0.3
- 2.0.0.4
- 2.0.0.5
- 2.0.0.6
- 2.0.0.7
- 2.0.0.8
- 2.0.0.9
- 2.0.0.10
- 2.0.0.11
- 2.0.0.12
- 2.0.0.13
- 2.0.0.14
- 2.0.0.15
- 2.0.0.16
- 2.0.0.17
- 2.0.0.18
- 2.0.0.19
- 2.0.0.20
- 2.0.1
- 2.0.4
- 2.0.5
- 2.0.6
- 2.0.7
- 2.0.9
- 2.0.10
- 2.1
- 2.2
- 2.5
- 3
- 3.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.0.10
- 3.0.11
- 3.0.12
- 3.0.13
- 3.0.14
- 3.0.15
- 3.0.16
- 3.0.17
- 3.0.19
- 3.0beta5
- 3.1
- 3.5
- 3.5.1
- 3.5.2
- 3.5.3
- 3.5.4
- 3.5.5
- 3.5.6
- 3.5.7
- 3.5.8
- 3.5.9
- 3.5.10
- 3.5.11
- 3.5.12
- 3.5.13
- 3.5.14
- 3.5.15
- 3.5.16
- 3.5.17
- 3.5.18
- 3.5.19
- 3.6
- 3.6.1
- 3.6.2
- 3.6.3
- 3.6.4
- 3.6.6
- 3.6.7
- 3.6.8
- 3.6.9
- 3.6.10
- 3.6.11
- 3.6.12
- 3.6.13
- 3.6.14
- 3.6.15
- 3.6.16
- 3.6.17
- 3.6.18
- 3.6.19
- 3.6.20
- 3.6.21
- 3.6.22
- 3.6.26
- 3.6.28
- 3.7
- 3.11.5
- 4.0
- 4.0.1
- 5.0
- 5.0.1
- 6.0
- 6.0.1
- 6.0.2
- 7.0
- 7.0.1
- 8.0
- 8.0 for Mac
- 8.0.1
- 8.1
- 8.2
- 9.0
- 9.0.1
- 9.1
- 10.0
- 10.0.1
- 10.0.2
- 10.0.3
- 10.0.4
- 10.0.5
- 10.0.7
- 10.1
- 10.2
- 11.0
- 12.0
- 13.0
- 14
- 14.0.1
- 15
- 15.0.1 (downgrade)
- 15.0a1
- 16
- 16.0.1
- 16.0.2
- 17.0
- 17.0.1
- 17.0.2
- 17.0.3
- 17.0.4
- 17.0.5
- 17.0.6
- 18.0
- 19.0
- 19.0.1
- 19.0.2
- 20.0
- 20.0.1
- 21.0
- 22.0
- 23.0
- 23.0.1
- 24.0
- 24.0.1
- 24.0.2
- 24.1.0
- 24.1.1
- 24.2
- 24.3
- 24.4
- 24.5
- 24.7
- 25
- 25.0
- 25.0.1
- 26
- 26.0
- 27
- 27.0
- 28
- 28.0
- 28.0.1
- 29.0
- 29.0.1
- 30.0
- 31
- 31.0
- 31.1.0
- 31.1.1
- 31.2
- 31.3.0
- 32.0
- 33
- 33.0
- 34
- 34.0
- 34.0.5
- 35
- 36
- 36.0.3
- 36.0.4
- 37
- 37.0
- 37.0.1
- 37.0.2
- 38
- 38.0
- 39
- 39.0
- 39.0.3
- 40
- 40.0.3
- 41
- 41.0
- 41.0.1
- 42
- 43
- 43.0
- 44
- 44.0.2
- 45
- 45.0
- 45.6
- 47.0
- 48
- 49
- 49.0
- 49.0.2
- 50
- 50.0.1
- 50.0.2
- 50.1
- 51
- 51.0.3
- 52
- 52.6
- 52.8
- 53
- 54.0
- 55
- 56
- 57
- 57.0.1
- 58.0
- 58.0.1
- 59
- 59.0.1
- 60
- 60.0
- 60.0.2
- 61
- 62.0
- 62.0.3
- 63.0
- 64
- 64.0
- 65
- 65.0.0
- 65.0.1
- 66
- 66.0
- 67
- 67.0
- 67.0.2
- 67.0.3
- 67.0.4
- 68.0
- 68.0.2
- 68.7
- 68.11
- 68.12
- 69.0
- 69.0.1
- 70
- 70.0
- 71
- 71.0
- 72
- 72.0
- 74.0
- 74.0.0
- 74.0.1
- 75.0
- 76
- 76.0
- 77
- 77.0
- 78.0
- 78.4
- 78.7
- 78.10.1
- 80.0
- 81.0
- 82
- 82.0
- 83.0
- 84.0
- 85.0
- 86.0
- 87.0
- 88.0
- 89.0
- 89.0.1
- 90.0
- 91.0
- 91.0.1
- 91.7
- 91.8
- 92.0
- 93.0
- 94.0
- 95.0
- 96
- 97
- 98
- 99
- 100
- 101
- 102
- 102.2
- 102.6
- 103
- 104
- 105
- 106
- 107
- 108
- 109
- 110
- 110.1
- 111
- 112
- 113
- 114
- 115
- 115.0.2
- 115.6
- 115.9
- 115.23
- 115.23.1
License
Website
- Vendor: https://www.mozilla.org/
- Product: https://www.mozilla.org/en-US/firefox/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.8VulDB Meta Temp Score: 4.7
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.3
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 239763
Nessus Name: TencentOS Server 4: thunderbird (TSSA-2024:0450)
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Firefox 116
Timeline
08/01/2023 🔍08/01/2023 🔍
08/01/2023 🔍
06/20/2025 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: DLA 3521-1
Status: Confirmed
CVE: CVE-2023-4046 (🔍)
GCVE (CVE): GCVE-0-2023-4046
GCVE (VulDB): GCVE-100-235847
Entry
Created: 08/01/2023 21:31Updated: 06/20/2025 18:34
Changes: 08/01/2023 21:31 (41), 08/24/2023 08:06 (1), 08/24/2023 08:10 (11), 06/20/2025 18:34 (18)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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