Mozilla Firefox up to 85.x Shared Jump Table assertion

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.4 | $0-$5k | 0.00 |
Summary
A vulnerability identified as problematic has been detected in Mozilla Firefox up to 85.x. This vulnerability affects unknown code of the component Shared Jump Table Handler. The manipulation leads to assertion. This vulnerability is traded as CVE-2021-23970. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.
Details
A vulnerability was found in Mozilla Firefox up to 85.x (Web Browser). It has been rated as problematic. This issue affects some unknown functionality of the component Shared Jump Table Handler. The manipulation with an unknown input leads to a assertion vulnerability. Using CWE to declare the problem leads to CWE-617. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. Impacted is confidentiality, integrity, and availability.
The weakness was shared 02/26/2021. It is possible to read the advisory at bugzilla.mozilla.org. The identification of this vulnerability is CVE-2021-23970. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.
Upgrading to version 86.0 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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: 4.6VulDB Meta Temp Score: 4.4
VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
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: AssertionCWE: CWE-617
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 |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Firefox 86.0
Timeline
01/13/2021 🔍02/26/2021 🔍
02/26/2021 🔍
03/05/2021 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: bugzilla.mozilla.org
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2021-23970 (🔍)
GCVE (CVE): GCVE-0-2021-23970
GCVE (VulDB): GCVE-100-170459
Entry
Created: 02/26/2021 10:04Updated: 03/05/2021 14:29
Changes: 02/26/2021 10:04 (41), 03/05/2021 14:29 (5)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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