5.5

CVE-2020-27842: debian debian_linux Out-of-bounds Read

Modified
AliasesUBUNTU-CVE-2020-27842DEBIAN-CVE-2020-27842
Published 05-01-2021Last modified 04-08-2024

Vulnerability summary

CVE-2020-27842 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 1.52% chance of exploitation in the next 30 days, higher than 74.6% 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
1.52%
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-2975-1DSA-4882-1MGASA-2020-0478RHSA-2021:4251SUSE-SU-2022:3801-1SUSE-SU-2022:3802-1

Timeline

  1. 05-01-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide crafted input to be processed by openjpeg could cause a null pointer dereference. The highest impact of this flaw is to application availability.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.52%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.52% 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, 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 | < 2.3.0-2+deb10u2build0.18.04.1 | < 2.3.1-1ubuntu4.20.04.1 | < 2.3.1-1ubuntu5
Redhat6 products
Debian2 products
Fedoraproject2 products
Oracle1 product
Uclouvain1 product

6 vendors · 19 products

References

14 links
Show all 14 references