8.8

CVE-2018-20847: debian debian_linux Integer Overflow or Wraparound

Modified
AliasesUBUNTU-CVE-2018-20847DEBIAN-CVE-2018-20847
Published 26-06-2019Last modified 05-08-2024

Vulnerability summary

CVE-2018-20847 is a high (CVSS 8.8) Integer Overflow or Wraparound vulnerability in debian debian_linux. EPSS estimates a 2.34% chance of exploitation in the next 30 days, higher than 83.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
2.34%
0%100%
Low · +0.17 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 3 · Related 1
DLA-1851-1RHSA-2021:4251USN-4497-1

Timeline

  1. 26-06-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An improper computation of p_tx0, p_tx1, p_ty0 and p_ty1 in the function opj_get_encoding_parameters in openjp2/pi.c in OpenJPEG through 2.3.0 can lead to an integer overflow.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.34%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

Increase +0.17 pp

From 2.17% 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: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu6 products
  • blenderAll versions (No fix recorded)
  • emscriptenAll versions (No fix recorded)
  • insighttoolkit4All versions (No fix recorded)
  • openjpeg2< 2.1.2-1.1+deb9u5build0.16.04.1
  • qtwebengine-opensource-srcAll versions (No fix recorded)
Debian2 products
Uclouvain1 product

3 vendors · 9 products

References

9 links