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Vulnerability details: VCID-6rtq-2r74-p3g9
Vulnerability ID VCID-6rtq-2r74-p3g9
Aliases CVE-2020-27842
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-125 Out-of-bounds Read
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 5.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27842.json
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00072 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
epss 0.00072 https://api.first.org/data/v1/epss?cve=CVE-2020-27842
cvssv3.1 4.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2020-27842
cvssv3.1 5.5 https://nvd.nist.gov/vuln/detail/CVE-2020-27842
archlinux Medium https://security.archlinux.org/AVG-1339
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27842.json
https://api.first.org/data/v1/epss?cve=CVE-2020-27842
https://bugzilla.redhat.com/show_bug.cgi?id=1907513
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15389
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27814
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27823
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27824
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27841
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27842
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27843
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27845
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6851
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8112
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.debian.org/debian-lts-announce/2022/04/msg00006.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJUPGIZE6A4O52EBOF75MCXJOL6MUCRV/
https://security.gentoo.org/glsa/202101-29
https://www.debian.org/security/2021/dsa-4882
https://www.oracle.com/security-alerts/cpuApr2021.html
https://www.oracle.com//security-alerts/cpujul2021.html
ASA-202012-21 https://security.archlinux.org/ASA-202012-21
AVG-1339 https://security.archlinux.org/AVG-1339
cpe:2.3:a:fedoraproject:extra_packages_for_enterprise_linux:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:fedoraproject:extra_packages_for_enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:outside_in_technology:8.5.5:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:outside_in_technology:8.5.5:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:codeready_linux_builder:8.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems:8.0:*:*:*:*:*:*:*
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:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:redhat:codeready_linux_builder_for_power_little_endian:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:codeready_linux_builder_for_power_little_endian:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*
CVE-2020-27842 https://nvd.nist.gov/vuln/detail/CVE-2020-27842
RHSA-2021:4251 https://access.redhat.com/errata/RHSA-2021:4251
USN-4685-1 https://usn.ubuntu.com/4685-1/
USN-4686-1 https://usn.ubuntu.com/4686-1/
USN-5952-1 https://usn.ubuntu.com/5952-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27842.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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L 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:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-27842
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:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-27842
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 0.20929
EPSS Score 0.00066
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:34:42.930334+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/4686-1/ 37.0.0