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Vulnerability details: VCID-2u1h-j78k-kudq
Vulnerability ID VCID-2u1h-j78k-kudq
Aliases CVE-2018-20847
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 7.9
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-190 Integer Overflow or Wraparound
System Score Found at
cvssv3 4.0 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-20847.json
epss 0.00738 https://api.first.org/data/v1/epss?cve=CVE-2018-20847
epss 0.00738 https://api.first.org/data/v1/epss?cve=CVE-2018-20847
epss 0.00738 https://api.first.org/data/v1/epss?cve=CVE-2018-20847
epss 0.00738 https://api.first.org/data/v1/epss?cve=CVE-2018-20847
epss 0.00738 https://api.first.org/data/v1/epss?cve=CVE-2018-20847
epss 0.00738 https://api.first.org/data/v1/epss?cve=CVE-2018-20847
epss 0.00738 https://api.first.org/data/v1/epss?cve=CVE-2018-20847
epss 0.00738 https://api.first.org/data/v1/epss?cve=CVE-2018-20847
epss 0.00738 https://api.first.org/data/v1/epss?cve=CVE-2018-20847
epss 0.00738 https://api.first.org/data/v1/epss?cve=CVE-2018-20847
epss 0.00738 https://api.first.org/data/v1/epss?cve=CVE-2018-20847
cvssv3 5.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2018-20847
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2018-20847
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-20847.json
https://api.first.org/data/v1/epss?cve=CVE-2018-20847
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20847
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/uclouvain/openjpeg/commit/5d00b719f4b93b1445e6fb4c766b9a9883c57949
https://github.com/uclouvain/openjpeg/issues/431
https://github.com/uclouvain/openjpeg/pull/1168/commits/c58df149900df862806d0e892859b41115875845
https://lists.debian.org/debian-lts-announce/2019/07/msg00010.html
http://www.securityfocus.com/bid/108921
1728509 https://bugzilla.redhat.com/show_bug.cgi?id=1728509
931294 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=931294
cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
CVE-2018-20847 https://nvd.nist.gov/vuln/detail/CVE-2018-20847
RHSA-2021:4251 https://access.redhat.com/errata/RHSA-2021:4251
USN-4497-1 https://usn.ubuntu.com/4497-1/
No exploits are available.
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-20847.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-20847
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-20847
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.71847
EPSS Score 0.00738
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:15:11.783302+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/4497-1/ 36.1.3