CVE-2021-37977
published 2021-11-02CVE-2021-37977: Use after free in Garbage Collection in Google Chrome prior to 94.0.4606.81 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML…
PriorityP343high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.86%
54.4th percentile
Use after free in Garbage Collection in Google Chrome prior to 94.0.4606.81 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Affected
12 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 | — | — |
| chrome | < 94.0.4606.81 | 94.0.4606.81 | |
| chrome | >= unspecified < 94.0.4606.81 | 94.0.4606.81 | |
| chrome_chrome | — | — | |
| msrc | microsoft_edge | — | — |
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
vendor_debian8.8HIGH
vendor_msrc8.8HIGH
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GHSA
GHSA-pmmc-rmcm-4j92: Use after free in Garbage Collection in Google Chrome prior to 94
ghsa_unreviewed·2022-05-24
CVE-2021-37977 [HIGH] CWE-416 GHSA-pmmc-rmcm-4j92: Use after free in Garbage Collection in Google Chrome prior to 94
Use after free in Garbage Collection in Google Chrome prior to 94.0.4606.81 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
OSV
CVE-2021-37977: Use after free in Garbage Collection in Google Chrome prior to 94
osv·2021-11-02·CVSS 8.8
CVE-2021-37977 [HIGH] CVE-2021-37977: Use after free in Garbage Collection in Google Chrome prior to 94
Use after free in Garbage Collection in Google Chrome prior to 94.0.4606.81 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
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)
Microsoft
Chromium: CVE-2021-37977 Use after free in Garbage Collection
vendor_msrc·2021-10-12·CVSS 8.8
CVE-2021-37977 [HIGH] Chromium: CVE-2021-37977 Use after free in Garbage Collection
Chromium: CVE-2021-37977 Use after free in Garbage Collection
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.
FAQ: What is the version information for this release?
Microsoft Edge Version
Date Released
Based on Chromium Version
94.0.992.47
10/11/2021
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 vulnerable.
How can I see the version of the brows
Chrome
Stable Channel Update for Desktop: CVE-2021-37977
vendor_chrome·2021-10-07·CVSS 8.8
CVE-2021-37977 [HIGH] Stable Channel Update for Desktop: CVE-2021-37977
Stable Channel Update for Desktop
CVE-2021-37977: Use after free in Garbage Collection. Reported by Anonymous on 2021-09-24 [$7500][ 1236318 ] High CVE-2021-37978 : Heap buffer overflow in Blink
Reported by Yangkang (@dnpushme) of 360 ATA on 2021-08-04 [$7500][ 1247260 ] High CVE-2021-37979 : Heap buffer overflow in WebRTC
Severity: high
Debian
CVE-2021-37977: chromium - Use after free in Garbage Collection in Google Chrome prior to 94.0.4606.81 allo...
vendor_debian·2021·CVSS 8.8
CVE-2021-37977 [HIGH] CVE-2021-37977: chromium - Use after free in Garbage Collection in Google Chrome prior to 94.0.4606.81 allo...
Use after free in Garbage Collection in Google Chrome prior to 94.0.4606.81 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)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop.htmlhttps://crbug.com/1252878https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RNARCF5HEZK7GJXZRN5TQ45AQDCRM2WO/https://www.debian.org/security/2022/dsa-5046https://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop.htmlhttps://crbug.com/1252878https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RNARCF5HEZK7GJXZRN5TQ45AQDCRM2WO/https://www.debian.org/security/2022/dsa-5046
2021-11-02
Published