CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.5 | $0-$5k | 0.00 |
A vulnerability has been found in Linux Kernel up to 5.11.8 (Operating System) and classified as problematic. Affected by this vulnerability is an unknown part of the file fs/io_uring.c of the component Thread Handler. The manipulation with an unknown input leads to a deadlock vulnerability. The CWE definition for the vulnerability is CWE-833. The product contains multiple threads or executable segments that are waiting for each other to release a necessary lock, resulting in deadlock. As an impact it is known to affect availability.
The weakness was disclosed 03/21/2021. The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2021-28951. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/03/2021).
Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.5VulDB Meta Temp Score: 4.5
VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.5
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: DeadlockCWE: CWE-833 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Partially
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: PatchStatus: 🔍
0-Day Time: 🔍
Patch: git.kernel.org
Timeline
03/20/2021 🔍03/21/2021 🔍
03/21/2021 🔍
04/03/2021 🔍
Sources
Vendor: kernel.orgAdvisory: git.kernel.org
Status: Not defined
CVE: CVE-2021-28951 (🔍)
Entry
Created: 03/21/2021 07:52Updated: 04/03/2021 13:07
Changes: 03/21/2021 07:52 (41), 04/03/2021 13:02 (2), 04/03/2021 13:07 (18)
Complete: 🔍
Cache ID: 3:4AB:103
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