5.5

CVE-2020-36312: linux linux_kernel

Modified
AliasesUBUNTU-CVE-2020-36312DEBIAN-CVE-2020-36312
Published 06-04-2021Last modified 04-08-2024

Vulnerability summary

CVE-2020-36312 is a medium (CVSS 5.5) vulnerability in linux linux_kernel. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 24.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.31%
0%100%
Low · 0.00 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 22 · Related 20
OPENSUSE-SU-2021:0579-1OPENSUSE-SU-2021:0758-1OPENSUSE-SU-2021:1975-1OPENSUSE-SU-2021:1977-1RHSA-2021:4140RHSA-2021:4356

Timeline

  1. 06-04-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in the Linux kernel before 5.8.10. virt/kvm/kvm_main.c has a kvm_io_bus_unregister_dev memory leak upon a kmalloc failure, aka CID-f65886606c2d.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.31%

Chance of exploitation in the next 30 days

Percentile

24%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.31% 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: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu43 products
  • linux< 4.4.0-197.229 | < 4.15.0-126.129 | < 5.4.0-56.62
  • linux-aws< 4.4.0-1082.86 | < 4.4.0-1118.132 | < 4.15.0-1088.93 | < 5.4.0-1030.31
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.3All versions (No fix recorded)
  • linux-aws-5.4< 5.4.0-1030.31~18.04.1
Debian1 product
  • linux< 5.8.10-1
Linux1 product

3 vendors · 45 products

References

6 links