Google Chrome prior 88.0.4324.182 on Windows Tab Strip heap-based overflow
|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.
A vulnerability was found in Google Chrome on Windows (Web Browser). It has been declared as critical. Affected by this vulnerability is an unknown code block of the component Tab Strip Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-122. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was disclosed 02/23/2021. It is possible to read the advisory at crbug.com. This vulnerability is known as CVE-2021-21155. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 02/23/2021). It is expected to see the exploit prices for this product increasing in the near future.
Upgrading to version 88.0.4324.182 eliminates this vulnerability.
CVSSv3VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
ExploitingClass: Memory corruption
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceThreat: 🔍
0-Day Time: 🔒
Upgrade: Chrome 88.0.4324.182
Timeline02/23/2021 Advisory disclosed
02/23/2021 +0 days VulDB entry created
02/23/2021 +0 days VulDB last update
CVE: CVE-2021-21155 (🔒)
EntryCreated: 02/23/2021 08:14 AM
Changes: (42) software_vendor software_name software_platform software_component vulnerability_cwe vulnerability_risk vulnerability_cvss3_vuldb_av vulnerability_cvss3_vuldb_ac vulnerability_cvss3_vuldb_pr vulnerability_cvss3_vuldb_ui vulnerability_cvss3_vuldb_s vulnerability_cvss3_vuldb_c vulnerability_cvss3_vuldb_i vulnerability_cvss3_vuldb_a vulnerability_cvss3_vuldb_rl vulnerability_cvss3_vuldb_rc advisory_url advisory_confirm_url countermeasure_name countermeasure_upgrade_version source_cve customer_rum advisory_date software_type vulnerability_cvss2_vuldb_av vulnerability_cvss2_vuldb_ac vulnerability_cvss2_vuldb_au vulnerability_cvss2_vuldb_ci vulnerability_cvss2_vuldb_ii vulnerability_cvss2_vuldb_ai vulnerability_cvss2_vuldb_rc vulnerability_cvss2_vuldb_rl vulnerability_cvss2_vuldb_e vulnerability_cvss3_vuldb_e vulnerability_cvss2_vuldb_basescore vulnerability_cvss2_vuldb_tempscore vulnerability_cvss3_vuldb_basescore vulnerability_cvss3_vuldb_tempscore vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore exploit_price_0day exploit_price_trend
Interested in the pricing of exploits?
See the underground prices here!