CVE-2021-37975
published 2021-10-08CVE-2021-37975: Use after free in V8 in Google Chrome prior to 94.0.4606.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
PriorityP185high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
KEVITW
CISA Known Exploited Vulnerabilitydue 2021-11-17
Exploited in the wild
EPSS
34.89%
98.2th percentile
Use after free in V8 in Google Chrome prior to 94.0.4606.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chromium | chromium | >= 0 < 97.0.4692.71-0.1~deb11u1 | 97.0.4692.71-0.1~deb11u1 |
| chromium | chromium | >= 0 < 97.0.4692.71-0.1 | 97.0.4692.71-0.1 |
| chromium | chromium | >= 0 < 97.0.4692.71-0.1 | 97.0.4692.71-0.1 |
| chromium | chromium | >= 0 < 97.0.4692.71-0.1 | 97.0.4692.71-0.1 |
| debian | chromium | < chromium 97.0.4692.71-0.1 (bookworm) | chromium 97.0.4692.71-0.1 (bookworm) |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| chrome | < 94.0.4606.71 | 94.0.4606.71 | |
| chrome | >= unspecified < 94.0.4606.71 | 94.0.4606.71 | |
| chrome_chrome | — | — | |
| msrc | microsoft_edge | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →CVE-2021-37975 is a use-after-free in the V8 JavaScript engine triggered via a crafted HTML page; monitor for exploitation of Chrome/Edge versions prior to 94.0.4606.71 delivered through web content. ↗
- →This vulnerability is confirmed exploited in the wild (CISA KEV); prioritize detection of exploitation attempts against unpatched Chromium-based browsers including Google Chrome, Microsoft Edge, and Opera. ↗
- →The vulnerability was reported anonymously on 2021-09-24 and assigned CVE-2021-37975; track bug tracker reference 1252918 for additional technical context. ↗
- ·No public proof-of-concept or exploit payload details are available in the provided sources; exploitation vector is solely via a crafted HTML page delivered remotely. ↗
- ·The vulnerability scope is listed as 'local' in the Debian security tracker, which may affect CVSS scoring assumptions used in some detection rule thresholds. ↗
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.8HIGH
vulncheck8.8HIGH
cisa8.8HIGH
vendor_debian8.8HIGH
vendor_msrc8.8HIGH
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CISA
Google Chromium V8 Use-After-Free Vulnerability
cisa·2021-11-03·CVSS 8.8
CVE-2021-37975 [HIGH] CWE-416 Google Chromium V8 Use-After-Free Vulnerability
Vulnerability: Google Chromium V8 Use-After-Free Vulnerability
Affected: Google Chromium V8
Google Chromium V8 Engine contains a use-after-free vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Required Action: Apply updates per vendor instructions.
Notes: https://nvd.nist.gov/vuln/detail/CVE-2021-37975
Remediation Due Date: 2021-11-17
Microsoft
Chromium: CVE-2021-37975 Use after free in V8
vendor_msrc·2021-10-12·CVSS 8.8
CVE-2021-37975 [HIGH] Chromium: CVE-2021-37975 Use after free in V8
Chromium: CVE-2021-37975 Use after free in V8
Description: This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
This vulnerability is known to be exploited in the wild.
FAQ: What is the version information for this release?
Microsoft Edge Version
Date Released
Based on Chromium Version
94.0.992.38
10/01/2021
94.0.4606.71
FAQ: Why is this Chrome CVE included in the Security Update Guide?
The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerabl
Chrome
Stable Channel Update for Desktop: CVE-2021-37974
vendor_chrome·2021-09-30·CVSS 8.8
CVE-2021-37974 [HIGH] Stable Channel Update for Desktop: CVE-2021-37974
Stable Channel Update for Desktop
CVE-2021-37974: Use after free in Safe Browsing. Reported by Weipeng Jiang (@Krace) from Codesafe Team of Legendsec at Qi'anxin Group on 2021-09-01 [$TBD][ 1252918 ] High CVE-2021-37975 : Use after free in V8
Reported by Anonymous on 2021-09-24 [$NA][ 1251787 ] Medium CVE-2021-37976 : Information leak in core
Severity: high
Debian
CVE-2021-37975: chromium - Use after free in V8 in Google Chrome prior to 94.0.4606.71 allowed a remote att...
vendor_debian·2021·CVSS 8.8
CVE-2021-37975 [HIGH] CVE-2021-37975: chromium - Use after free in V8 in Google Chrome prior to 94.0.4606.71 allowed a remote att...
Use after free in V8 in Google Chrome prior to 94.0.4606.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Scope: local
bookworm: resolved (fixed in 97.0.4692.71-0.1)
bullseye: resolved (fixed in 97.0.4692.71-0.1~deb11u1)
forky: resolved (fixed in 97.0.4692.71-0.1)
sid: resolved (fixed in 97.0.4692.71-0.1)
trixie: resolved (fixed in 97.0.4692.71-0.1)
GHSA
GHSA-cf6v-2gfq-gj95: Use after free in V8 in Google Chrome prior to 94
ghsa_unreviewed·2022-05-24
CVE-2021-37975 [HIGH] CWE-416 GHSA-cf6v-2gfq-gj95: Use after free in V8 in Google Chrome prior to 94
Use after free in V8 in Google Chrome prior to 94.0.4606.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Project0
The More You Know, The More You Know You Don’t Know - Project Zero
project_zero·2022-04-01
CVE-2016-4654 The More You Know, The More You Know You Don’t Know - Project Zero
A Year in Review of 0-days Used In-the-Wild in 2021
Posted by Maddie Stone, Google Project Zero
This is our third annual year in review of 0-days exploited in-the-wild [2020, 2019]. Each year we’ve looked back at all of the detected and disclosed in-the-wild 0-days as a group and synthesized what we think the trends and takeaways are. The goal of this report is not to detail each individual exploit, but instead to analyze the exploits from the year as a group, looking for trends, gaps, lessons learned, successes, etc. If you’re interested in the analysis of individual exploits, please check out our root cause analysis repository.
We perform and share this analysis in order to make 0-day hard. We want it to be more costly, more resource intensive, and overall more difficult for
OSV
CVE-2021-37975: Use after free in V8 in Google Chrome prior to 94
osv·2021-10-08·CVSS 8.8
CVE-2021-37975 [HIGH] CVE-2021-37975: Use after free in V8 in Google Chrome prior to 94
Use after free in V8 in Google Chrome prior to 94.0.4606.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
VulnCheck
Google Chromium V8 Use-After-Free Vulnerability
vulncheck·2021·CVSS 8.8
CVE-2021-37975 [HIGH] CWE-416 Google Chromium V8 Use-After-Free Vulnerability
Google Chromium V8 Use-After-Free Vulnerability
Google Chromium V8 Engine contains a use-after-free vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Affected: Google Chromium V8
Required Action: Apply updates per vendor instructions.
Exploitation References: https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit; https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
Remediation Due: 2021-11-17
Project0
Project Zero RCA: CVE-2021-37975: Chrome v8 garbage collector logic bug causing live objects to be collected
project_zero·CVSS 8.8
CVE-2021-37975 [HIGH] Project Zero RCA: CVE-2021-37975: Chrome v8 garbage collector logic bug causing live objects to be collected
# CVE-2021-37975: Chrome v8 garbage collector logic bug causing live objects to be collected
*Man Yue Mo, GitHub Security Lab*
## The Basics
**Disclosure or Patch Date:** 30 September 2021
**Product:** Google Chrome
**Advisory:** https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_30.html
**Affected Versions:** pre 94.0.4606.71
**First Patched Version:** 94.0.4606.71
**Issue/Bug Report:** https://bugs.chromium.org/p/chromium/issues/detail?id=1252918
**Patch CL:** https://chromium.googlesource.com/v8/v8.git/+/1054ee7f349d6be22e9518cf9b794b206d0e5818
**Bug-Introducing CL:** N/A
**Reporter(s):** Anonymous
## The Code
**Proof-of-concept:**
```js
var initKey = {init : 1};
var level = 4;
var map1 = new WeakMap();
function hideWeakMap(map, level, initKey)
No detection rules found.
No public exploits indexed.
Qualys
Managing CISA Known Exploited Vulnerabilities with Qualys VMDR | Qualys
blogs_qualys·2022-02-23
Managing CISA Known Exploited Vulnerabilities with Qualys VMDR | Qualys
#### Table of Contents
- Situation
- Directive Scope
- CISA Catalog of Known Exploited Vulnerabilities
- Detect CISA Vulnerabilities Using Qualys VMDR
- CISA Exploited RTI
- Detailed Operational Dashboard
- Remediation
- Federal Enterprises and Agencies Can Act Now
- Summary
- Getting Started
CISA released a directive in November 2021, recommending urgent and prioritized remediation of actively exploited vulnerabilities. Both government agencies and corporations should heed this advice. This blog outlines how Qualys Vulnerability Management, Detection & Response can be used by any organization to respond to this directive efficiently and effectively.
## Situation
Last November 2021, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a Binding Operational Directiv
Qualys
Qualys Response to CISA Alert: Binding Operational Directive 22-01
blogs_qualys·2021-11-09
Qualys Response to CISA Alert: Binding Operational Directive 22-01
## Table of Contents
Overview
Directive Scope
CISA Catalog of Known Exploited Vulnerabilities
Detect CISAs Vulnerabilities Using Qualys VMDR
Remediation
Federal Enterprises and Agencies Can Act Now
Summary
Getting Started
Start your VMDR 30-day, no-cost trial today
## Overview
On November 3, 2021, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a Binding Operational Directive 22-01 , “Reducing the Significant Risk of Known Exploited Vulnerabilities.” This directive recommends urgent and prioritized remediation of the vulnerabilities that adversaries are actively exploiting. It establishes a CISA-managed catalog of known exploited vulnerabilities that carry significant risk to the federal government and establishes requirements for agencies to remediate
Qualys
Qualys Response to CISA Alert: Binding Operational Directive 22-01 | Qualys
blogs_qualys·2021-11-09
Qualys Response to CISA Alert: Binding Operational Directive 22-01 | Qualys
#### Table of Contents
- Overview
- Directive Scope
- CISA Catalog of Known Exploited Vulnerabilities
- Detect CISAs Vulnerabilities Using Qualys VMDR
- Remediation
- Federal Enterprises and Agencies Can Act Now
- Summary
- Getting Started
Start your VMDR 30-day, no-cost trial today
## Overview
On November 3, 2021, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a Binding Operational Directive 22-01, “Reducing the Significant Risk of Known Exploited Vulnerabilities.” This directive recommends urgent and prioritized remediation of the vulnerabilities that adversaries are actively exploiting. It establishes a CISA-managed catalog of known exploited vulnerabilities that carry significant risk to the federal government and establishes requirements for agencies to
Checkpoint
4th October – Threat Intelligence Report
blogs_checkpoint·2021-10-04
CVE-2021-37975 4th October – Threat Intelligence Report
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## 4th October – Threat Intelligence Report
For the latest discoveries in cyber research for the week of 4th October, please download our Threat Intelligence Bulletin .
Top Attacks and Breaches
Check Point Research has discovered cyber attacks against the users of PIX, the instant payment solution created and managed by the Brazilian Central Bank. The attackers distributed two different variants of banking malware, named PixStealer and MalRhino, through two separate malicious applications on Google’s Play Store to
http://packetstormsecurity.com/files/172847/Chrome-V8-Logic-Bug-Use-After-Free.htmlhttps://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_30.htmlhttps://crbug.com/1252918https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D63JZ3ROXCUHP4CFWDHCPZNTGET7T34R/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRFXUDH46PFVE75VQVWY6PYY5DK3S2XT/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RNARCF5HEZK7GJXZRN5TQ45AQDCRM2WO/https://www.debian.org/security/2022/dsa-5046http://packetstormsecurity.com/files/172847/Chrome-V8-Logic-Bug-Use-After-Free.htmlhttps://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_30.htmlhttps://crbug.com/1252918https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D63JZ3ROXCUHP4CFWDHCPZNTGET7T34R/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRFXUDH46PFVE75VQVWY6PYY5DK3S2XT/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RNARCF5HEZK7GJXZRN5TQ45AQDCRM2WO/https://www.debian.org/security/2022/dsa-5046https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-37975
2021-10-08
Published
2021-11-03
Added to CISA KEV
Exploited in the wild