7.5

CVE-2021-20298: debian debian_linux Uncontrolled Resource Consumption

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2021-20298DEBIAN-CVE-2021-20298
Published 23-08-2022Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-20298 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in debian debian_linux. EPSS estimates a 1.57% chance of exploitation in the next 30 days, higher than 75% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.57%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 5
DLA-3236-1OPENSUSE-SU-2021:1198-1OPENSUSE-SU-2021:2793-1SUSE-SU-2021:14846-1SUSE-SU-2021:2793-1SUSE-SU-2021:2913-1

Timeline

  1. 23-08-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A flaw was found in OpenEXR's B44Compressor. This flaw allows an attacker who can submit a crafted file to be processed by OpenEXR, to exhaust all memory accessible to the application. The highest threat from this vulnerability is to system availability.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

1.57%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

+0.03 pp

From 1.54% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.57%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian2 products
Openexr1 product
Ubuntu1 product
  • openexrAll versions (No fix recorded)

3 vendors · 4 products

References

9 links