CVE-2020-27843: debian debian_linux Out-of-bounds Read

Modified

AliasesUBUNTU-CVE-2020-27843DEBIAN-CVE-2020-27843

Published 05-01-2021Last modified 04-08-2024

Vulnerability summary

CVE-2020-27843 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 1.77% chance of exploitation in the next 30 days, higher than 78.1% 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

7.1/10

010

High · v2.0 (NVD)

EPSS score

1.77%

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 10 · Related 6

DLA-2975-1 DSA-4882-1 MGASA-2020-0478 RHSA-2021:4251 SUSE-SU-2022:3801-1 SUSE-SU-2022:3802-1+4 more

Timeline

05-01-2021
PublishedVulnerability first disclosed.
04-08-2024
Last modifiedVulnerability information updated.

Description

A flaw was found in OpenJPEG in versions prior to 2.4.0. This flaw allows an attacker to provide specially crafted input to the conversion or encoding functionality, causing an out-of-bounds read. The highest threat from this vulnerability is system availability.

CVSS metrics

4 scores · 3 sources · 2 versions

v3.15.5v2.07.1

EPSS trend

Probability

1.77%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.77% 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

CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.

Affected systems

Version check

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

Ubuntu7 products

blenderAll versions (No fix recorded)
ghostscript< 9.26~dfsg+0-0ubuntu0.16.04.14 | < 9.26~dfsg+0-0ubuntu0.18.04.14
insighttoolkit4All versions (No fix recorded)
openjpegAll versions (No fix recorded)
openjpeg2< 2.1.2-1.1+deb9u6ubuntu0.1~esm3 | All versions (No fix recorded) | < 2.3.1-1ubuntu4.20.04.1 | < 2.3.1-1ubuntu5