| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 2.7 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as problematic, has been found in Mozilla Thunderbird up to 78.9. The impacted element is an unknown function of the component Verification Handler. Performing a manipulation results in race condition. This vulnerability is identified as CVE-2021-29948. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.
Details
A vulnerability, which was classified as problematic, was found in Mozilla Thunderbird up to 78.9 (Mail Client Software). This affects an unknown functionality of the component Verification Handler. The manipulation with an unknown input leads to a race condition vulnerability. CWE is classifying the issue as CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. This is going to have an impact on integrity.
The weakness was released 06/25/2021 as mfsa2021-14. It is possible to read the advisory at mozilla.org. This vulnerability is uniquely identified as CVE-2021-29948. 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 78.10 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.
Be aware that VulDB is the high quality source for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.mozilla.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 2.8VulDB Meta Temp Score: 2.8
VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 2.5
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: 🔍
NVD Base Score: 🔍
Exploiting
Class: Race conditionCWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
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: Thunderbird 78.10
Timeline
04/01/2021 🔍06/25/2021 🔍
06/25/2021 🔍
07/02/2021 🔍
Sources
Vendor: mozilla.orgAdvisory: mfsa2021-14
Status: Confirmed
CVE: CVE-2021-29948 (🔍)
GCVE (CVE): GCVE-0-2021-29948
GCVE (VulDB): GCVE-100-177591
Entry
Created: 06/25/2021 13:08Updated: 07/02/2021 14:20
Changes: 06/25/2021 13:08 (40), 07/02/2021 14:17 (5), 07/02/2021 14:20 (18)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.

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