CVE-2020-6556

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

Heap buffer overflow in SwiftShader in Google Chrome prior to 84.0.4147.135 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

References

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00049.html

https://chromereleases.googleblog.com/2020/08/stable-channel-update-for-desktop_18.html

https://crbug.com/1115345

https://lists.fedoraproject.org/archives/list/[email protected]/message/EE7XWIZBME7JAY7N6CGPET4CLNHHEIVT/

https://www.debian.org/security/2021/dsa-4824

Details

Source: MITRE

Published: 2020-09-21

Updated: 2021-01-02

Type: CWE-787

Risk Information

CVSS v2

Base Score: 9.3

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 8.6

Severity: HIGH

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

Tenable Plugins

View all (12 total)

IDNameProductFamilySeverity
144672Debian DSA-4824-1 : chromium - security updateNessusDebian Local Security Checks
high
141905openSUSE Security Update : opera (openSUSE-2020-1713)NessusSuSE Local Security Checks
high
140550Fedora 31 : chromium (2020-88bf0a76d1)NessusFedora Local Security Checks
high
140307Fedora 32 : chromium (2020-a1f140614b)NessusFedora Local Security Checks
high
139902openSUSE Security Update : chromium (openSUSE-2020-1263)NessusSuSE Local Security Checks
high
139899openSUSE Security Update : chromium (openSUSE-2020-1260)NessusSuSE Local Security Checks
high
139860RHEL 6 : chromium-browser (RHSA-2020:3560)NessusRed Hat Local Security Checks
high
139834GLSA-202008-10 : Chromium, Google Chrome: Heap buffer overflowNessusGentoo Local Security Checks
high
139695Google Chrome < 84.0.4147.135 VulnerabilityNessusWindows
high
139694Google Chrome < 84.0.4147.135 VulnerabilityNessusMacOS X Local Security Checks
high
139683FreeBSD : chromium -- heap buffer overflow (64575bb6-e188-11ea-beed-e09467587c17)NessusFreeBSD Local Security Checks
high
701284Google Chrome < 84.0.4147.135 VulnerabilityNessus Network MonitorWeb Clients
high