5.5

CVE-2020-14314: canonical ubuntu_linux Out-of-bounds Read

Modified
AliasesUBUNTU-CVE-2020-14314DEBIAN-CVE-2020-14314
Published 15-09-2020Last modified 04-08-2024

Vulnerability summary

CVE-2020-14314 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 31% 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 (CVE.org)
EPSS score
0.37%
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 26 · Related 19
DLA-2385-1DLA-2420-1MGASA-2020-0355OPENSUSE-SU-2020:1325-1OPENSUSE-SU-2020:1382-1OPENSUSE-SU-2021:0242-1

Timeline

  1. 15-09-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.37%

Chance of exploitation in the next 30 days

Percentile

31%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.37% 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.

Ubuntu42 products
  • linuxAll versions (No fix recorded) | < 4.4.0-193.224 | < 4.15.0-121.123 | < 5.4.0-51.56
  • linux-aws< 4.4.0-1081.85 | < 4.4.0-1117.131 | < 4.15.0-1086.91 | < 5.4.0-1028.29
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.3All versions (No fix recorded)
  • linux-aws-5.4< 5.4.0-1028.29~18.04.1
Debian2 products
Canonical1 product
Linux1 product
Linux kernel1 product
Starwindsoftware1 product
  • starwind_virtual_sanv8:build12533 | v8:build12658 | v8:build12859 | v8:build13170 | v8:build13586 | v8:build13861

6 vendors · 48 products

References

20 links
Show all 20 references