| 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. |
|---|---|---|
| 6.3 | $0-$5k | 1.29 |
A vulnerability, which was classified as critical, was found in WebKit WebKitGTK 2.30.4 (Web Browser). Affected is an unknown code block of the component GraphicsContext. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-416. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
A use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability.
The weakness was released 07/09/2021 as TALOS-2021-1238. The advisory is shared for download at talosintelligence.com. This vulnerability is traded as CVE-2021-21779 since 01/04/2021. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn’t require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/11/2021).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Type
Vendor
Name
VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3
VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
| AV | AC | Au | C | I | A |
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| 🔍 | 🔍 | 🔍 | 🔍 | 🔍 | 🔍 |
| 🔍 | 🔍 | 🔍 | 🔍 | 🔍 | 🔍 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Memory corruption
CWE: CWE-416
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | unlock | unlock | unlock | unlock |
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| Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: no mitigation known
Status: 🔍
0-Day Time: 🔒
01/04/2021 CVE assigned
07/09/2021 Advisory disclosed
07/09/2021 VulDB entry created
07/11/2021 VulDB last updateAdvisory: TALOS-2021-1238
Status: Confirmed
CVE: CVE-2021-21779 (🔒)
Created: 07/09/2021 07:42
Updated: 07/11/2021 13:18
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍
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