CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system. | Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack. | CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability. |
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5.7 | $0-$5k | 0.95 |
A vulnerability, which was classified as critical, was found in Linux Kernel up to 5.10.12 (Operating System). This affects some unknown functionality of the file net/vmw_vsock/af_vsock.c of the component VSOCK Handler. The manipulation with an unknown input leads to a race condition vulnerability. CWE is classifying the issue as CWE-362. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was released 02/05/2021. It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2021-26708 since 02/05/2021. The exploitability is told to be difficult. It is possible to initiate the attack remotely. A authentication is required for exploitation. Technical details and a public exploit are known.
A public exploit has been developed by Alexander Popov (a13xp0p0v) and been published 4 days after the advisory. It is declared as proof-of-concept. The exploit is shared for download at a13xp0p0v.github.io.
Upgrading to version 5.10.13 eliminates this vulnerability. The upgrade is hosted for download at cdn.kernel.org. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be patching the affected component.
Product
Type
Vendor
Name
CPE 2.3
CPE 2.2
Video
CVSSv3
VulDB Meta Base Score: 6.0VulDB Meta Temp Score: 5.7
VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 7.0
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
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Author: Alexander Popov (a13xp0p0v)
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Threat: 🔍Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔒
Exploit Delay Time: 🔍
Upgrade: Kernel 5.10.13
Patch: git.kernel.org
Timeline
02/05/2021 Advisory disclosed02/05/2021 CVE assigned
02/05/2021 VulDB entry created
02/09/2021 Exploit disclosed
04/13/2021 VulDB last update
Sources
Vendor: https://www.kernel.org/Advisory: openwall.com
Status: Confirmed
CVE: CVE-2021-26708 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 02/05/2021 08:14 PMUpdated: 04/13/2021 11:43 AM
Changes: (1) exploit_developer_name
Complete: 🔍
Committer: misc
Comments
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