5

CVE-2020-14364: canonical ubuntu_linux Out-of-bounds Read

Modified
AliasesALPINE-CVE-2020-14364RHSA-2020:4047RHSA-2020:4048
Published 31-08-2020Last modified 04-08-2024

Vulnerability summary

CVE-2020-14364 is a medium (CVSS 5.0) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 5.40% chance of exploitation in the next 30 days, higher than 92.6% of scored vulnerabilities.

Priority
Routine

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

Source freshness unavailable

How is this decided?
CVSS score
5.0/10
010
Medium · v3.1 (NVD)
EPSS score
5.40%
0%100%
Low · -0.04 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 35 · Related 27

Timeline

  1. 31-08-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its 'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

5.40%

Chance of exploitation in the next 30 days

Percentile

93%

Versus all other CVEs

30-day change

Decrease -0.04 pp

From 5.45% 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, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat191 products
  • enterprise_linuxEOL6.0 | 7.0 | 8.0
  • openstack10 | 13
  • hivex< 0:1.3.15-7.module+el8.1.0+4066+0f1aadab | < 0:1.3.15-7.module+el8.0.0+4084+cceb9f44 | < 0:1.3.18-20.module+el8.2.0+5588+63a201c3
  • hivex-debuginfo< 0:1.3.15-7.module+el8.1.0+4066+0f1aadab | < 0:1.3.15-7.module+el8.0.0+4084+cceb9f44 | < 0:1.3.18-20.module+el8.2.0+5588+63a201c3
  • hivex-debugsource< 0:1.3.15-7.module+el8.1.0+4066+0f1aadab | < 0:1.3.15-7.module+el8.0.0+4084+cceb9f44 | < 0:1.3.18-20.module+el8.2.0+5588+63a201c3
Alpine2 products
  • qemu< 5.0.0-r2 | < 5.1.0-r1
  • xen< 4.12.3-r3 | < 4.13.1-r3 | < 4.13.1-r5 | < 4.11.4-r1
Debian2 products
Canonical1 product
Fedoraproject1 product
Opensuse1 product
Qemu1 product
Ubuntu1 product
  • qemu< 2.0.0+dfsg-2ubuntu1.47+esm1 | < 1:2.5+dfsg-5ubuntu10.46 | < 1:2.11+dfsg-1ubuntu7.32 | < 1:4.2-3ubuntu6.6

8 vendors · 200 products · Showing 200 of 253

References

55 links
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