8.8

CVE-2021-37979: debian debian_linux Out-of-bounds Write

CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2021-37979DEBIAN-CVE-2021-37979
Published 02-11-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-37979 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 1.77% chance of exploitation in the next 30 days, higher than 77.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
46/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
1.77%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 8 · Related 6
DSA-5046-1MGASA-2022-0050OPENSUSE-SU-2021:1350-1OPENSUSE-SU-2021:1433-1OPENSUSE-SU-2021:1434-1OPENSUSE-SU-2022:0110-1

Timeline

  1. 02-11-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

heap buffer overflow in WebRTC in Google Chrome prior to 94.0.4606.81 allowed a remote attacker who convinced a user to browse to a malicious website to potentially exploit heap corruption via a crafted HTML page.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.77%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

0.00 pp

From 1.77% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.77%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (talosintelligence.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian2 products
Fedoraproject1 product
Google1 product
  • chrome≥ unspecified, < 94.0.4606.81 | < 94.0.4606.81
Ubuntu1 product
  • chromium-browser< 94.0.4606.81-0ubuntu0.18.04.1

4 vendors · 5 products

References

8 links