6.5

CVE-2021-3979: fedoraproject fedora

Modified
AliasesMGASA-2022-0138SUSE-SU-2022:2817-1SUSE-SU-2022:2818-1
Published 25-08-2022Last modified 03-11-2025

Vulnerability summary

CVE-2021-3979 is a medium (CVSS 6.5) vulnerability in fedoraproject fedora. EPSS estimates a 0.57% chance of exploitation in the next 30 days, higher than 47% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.57%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 1
DLA-3629-1DLA-4310-1RHSA-2022:1174RHSA-2022:1716USN-6063-1

Timeline

  1. 25-08-2022
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

A key length flaw was found in Red Hat Ceph Storage. An attacker can exploit the fact that the key length is incorrectly passed in an encryption algorithm to create a non random key, which is weaker and can be exploited for loss of confidentiality and integrity on encrypted disks.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.57%

Chance of exploitation in the next 30 days

Percentile

47%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.56% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Opensuse8 products
  • ceph-test&distro=openSUSE Leap 15.3< 16.2.9.536+g41a9f9a5573-150300.6.3.1
  • ceph-test&distro=openSUSE Leap 15.4< 16.2.9.536+g41a9f9a5573-150400.3.3.1
  • ceph&distro=openSUSE Leap 15.3< 16.2.9.536+g41a9f9a5573-150300.6.3.1
  • ceph&distro=openSUSE Leap 15.4< 16.2.9.536+g41a9f9a5573-150400.3.3.1
  • ceph&distro=openSUSE Leap Micro 5.2< 16.2.9.536+g41a9f9a5573-150300.6.3.1
Suse8 products
  • ceph&distro=SUSE Enterprise Storage 7.1< 16.2.9.536+g41a9f9a5573-150300.3.3.1
  • ceph&distro=SUSE Linux Enterprise Micro 5.1< 16.2.9.536+g41a9f9a5573-150300.6.3.1
  • ceph&distro=SUSE Linux Enterprise Micro 5.2< 16.2.9.536+g41a9f9a5573-150300.6.3.1
  • ceph&distro=SUSE Linux Enterprise Module for Basesystem 15 SP3< 16.2.9.536+g41a9f9a5573-150300.6.3.1
  • ceph&distro=SUSE Linux Enterprise Module for Basesystem 15 SP4< 16.2.9.536+g41a9f9a5573-150400.3.3.1
Redhat6 products
Debian1 product
  • ceph< 16.2.9+ds-1
Fedoraproject1 product
Mageia1 product
  • ceph< 15.2.16-1.mga8
Ubuntu1 product
  • ceph< 12.2.13-0ubuntu0.18.04.11 | < 15.2.17-0ubuntu0.20.04.3

7 vendors · 26 products

References

31 links
Show all 31 references