Mozilla Firefox/Thunderbird up to 90.x JIT Code denial of service

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.1 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Mozilla Firefox and Thunderbird up to 90.x. It has been declared as problematic. Impacted is an unknown function of the component JIT Code Handler. Executing a manipulation can lead to denial of service. The identification of this vulnerability is CVE-2021-29981. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.
Details
A vulnerability classified as problematic was found in Mozilla Firefox and Thunderbird up to 90.x (Web Browser). This vulnerability affects some unknown processing of the component JIT Code Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.
The weakness was shared 08/18/2021. The advisory is available at mozilla.org. This vulnerability was named CVE-2021-29981. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.
Upgrading to version 91.0 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.
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Product
Type
Vendor
Name
Version
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: 4.3VulDB Meta Temp Score: 4.1
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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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: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Firefox/Thunderbird 91.0
Timeline
04/01/2021 🔍08/18/2021 🔍
08/18/2021 🔍
08/19/2021 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: mozilla.org
Status: Confirmed
CVE: CVE-2021-29981 (🔍)
GCVE (CVE): GCVE-0-2021-29981
GCVE (VulDB): GCVE-100-181054
Entry
Created: 08/18/2021 10:25Updated: 08/19/2021 22:37
Changes: 08/18/2021 10:25 (41), 08/19/2021 22:37 (2)
Complete: 🔍
Cache ID: 216::103
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