6.5

CVE-2021-3582: debian debian_linux

Modified
AliasesUBUNTU-CVE-2021-3582DEBIAN-CVE-2021-3582
Published 25-03-2022Last modified 03-08-2024

Vulnerability summary

CVE-2021-3582 is a medium (CVSS 6.5) vulnerability in debian debian_linux. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 32.7% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Routine

Not severe (CVSS 6.5, local 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
0.39%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 11 · Related 10
DLA-3099-1OPENSUSE-SU-2021:1202-1OPENSUSE-SU-2021:2442-1OPENSUSE-SU-2021:2474-1OPENSUSE-SU-2021:2591-1OPENSUSE-SU-2024:11287-1

Timeline

  1. 25-03-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. The issue occurs while handling a "PVRDMA_CMD_CREATE_MR" command due to improper memory remapping (mremap). This flaw allows a malicious guest to crash the QEMU process on the host. The highest threat from this vulnerability is to system availability.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.39%

Chance of exploitation in the next 30 days

Percentile

33%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.39% 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

1 found
  • referenceUnverified

    Exploit Reference (bugzilla.redhat.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Debian2 products
Qemu1 product
Ubuntu1 product
  • qemu< 1:4.2-3ubuntu6.17 | < 1:6.0+dfsg-2expubuntu1

3 vendors · 4 products

References

9 links