5.5

CVE-2020-12768: canonical ubuntu_linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2020-12768DEBIAN-CVE-2020-12768
Published 09-05-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-12768 is a medium (CVSS 5.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 31.8% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.39%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 9
DSA-4699-1SUSE-SU-2020:1587-1SUSE-SU-2020:1599-1SUSE-SU-2020:1602-1SUSE-SU-2020:1603-1SUSE-SU-2020:1604-1

Timeline

  1. 09-05-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in the Linux kernel before 5.6. svm_cpu_uninit in arch/x86/kvm/svm.c has a memory leak, aka CID-d80b64ff297e. NOTE: third parties dispute this issue because it's a one-time leak at the boot, the size is negligible, and it can't be triggered at will

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.39%

Chance of exploitation in the next 30 days

Percentile

32%

Versus all other CVEs

30-day change

0.00 pp

From 0.39% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.39%

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

Ubuntu31 products
  • linux< 5.4.0-40.44
  • linux-aws< 5.4.0-1018.18
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.3< 5.3.0-1030.32~18.04.1
  • linux-azureAll versions (No fix recorded) | < 5.4.0-1020.20
Debian2 products
Canonical1 product
Linux1 product

4 vendors · 35 products

References

15 links
Show all 15 references