Google Chrome prior 86.0.4240.111 Freetype heap-based overflow

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CVSS Meta Temp Score
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CTI Interest Score
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6.6$5k-$25k0.04

A vulnerability, which was classified as critical, has been found in Google Chrome (Web Browser). Affected by this issue is an unknown functionality of the component Freetype. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-122. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

The weakness was published 10/20/2020 as Stable Channel Update for Desktop - October 2020. The advisory is shared for download at chromereleases.googleblog.com. This vulnerability is handled as CVE-2020-15999 since 07/27/2020. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 11/27/2020). It is expected to see the exploit prices for this product increasing in the near future.

Upgrading to version 86.0.4240.111 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

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VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔒

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

NVD Base Score: 🔒

Exploitinginfoedit

Class: Memory corruption
CWE: CWE-122
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Threat: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒

Upgrade: Chrome 86.0.4240.111

Timelineinfoedit

07/27/2020 CVE assigned
10/20/2020 +85 days Advisory disclosed
10/20/2020 +0 days Countermeasure disclosed
10/26/2020 +6 days VulDB entry created
11/27/2020 +32 days VulDB last update

Sourcesinfoedit

Vendor: https://www.google.com/
Product: https://www.google.com/chrome/

Advisory: Stable Channel Update for Desktop - October 2020
Status: Confirmed

CVE: CVE-2020-15999 (🔒)

Entryinfoedit

Created: 10/26/2020 07:44 AM
Updated: 11/27/2020 07:22 AM
Changes: (18) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
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