Vulnerability Name:

CVE-2021-21193 (CCN-198135)

Assigned:2020-12-21
Published:2021-03-12
Updated:2021-12-03
Summary:Use after free in Blink in Google Chrome prior to 89.0.4389.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-416
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-21193

Source: CCN
Type: Google Chrome Releases Web site
Stable Channel Update for Desktop

Source: MISC
Type: Release Notes, Third Party Advisory
https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html

Source: MISC
Type: Permissions Required, Third Party Advisory
https://crbug.com/1186287

Source: XF
Type: UNKNOWN
google-chrome-cve202121193-code-exec(198135)

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-141d8640ce

Source: GENTOO
Type: Third Party Advisory
GLSA-202104-08

Source: CCN
Type: CYBERSECURITY & INFRASTRUCTURE SECURITY AGENCY
KNOWN EXPLOITED VULNERABILITIES CATALOG

Source: DEBIAN
Type: Third Party Advisory
DSA-4886

Vulnerable Configuration:Configuration 1:
  • cpe:/a:google:chrome:*:*:*:*:*:*:*:* (Version < 89.0.4389.90)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:32:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:112066
    P
    		chromedriver-93.0.4577.82-1.1 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:105615
    P
    		chromedriver-93.0.4577.82-1.1 on GA media (Moderate)
    2021-10-01
    oval:org.opensuse.security:def:111334
    P
    		Security update for opera (Important)
    2021-04-22
    oval:org.opensuse.security:def:103144
    P
    		Security update for chromium (Important)
    2021-03-19
    oval:org.opensuse.security:def:109801
    P
    		Security update for chromium (Important)
    2021-03-19
    oval:org.opensuse.security:def:11185
    P
    		Security update for chromium (Important)
    2021-03-19
    oval:org.opensuse.security:def:96454
    P
    		Security update for chromium (Important)
    2021-03-19
    oval:org.opensuse.security:def:111277
    P
    		Security update for chromium (Important)
    2021-03-17
    BACK
    google chrome *
    fedoraproject fedora 32
    debian debian linux 10.0