ubuntu-cve-2020-27842
Vulnerability from osv_ubuntu
Published
2021-01-05 18:15
Modified
2026-05-29 10:24
Summary
Details
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.
Severity
5.5 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopenjpeg2",
"binary_version": "1.3+dfsg-4.7ubuntu1"
},
{
"binary_name": "openjpeg-tools",
"binary_version": "1.3+dfsg-4.7ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "openjpeg",
"purl": "pkg:deb/ubuntu/openjpeg@1.3+dfsg-4.7ubuntu1?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.3+dfsg-4.6ubuntu2",
"1.3+dfsg-4.7ubuntu1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ghostscript",
"binary_version": "9.26~dfsg+0-0ubuntu0.16.04.14"
},
{
"binary_name": "ghostscript-x",
"binary_version": "9.26~dfsg+0-0ubuntu0.16.04.14"
},
{
"binary_name": "libgs9",
"binary_version": "9.26~dfsg+0-0ubuntu0.16.04.14"
},
{
"binary_name": "libgs9-common",
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}
]
},
"package": {
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"name": "ghostscript",
"purl": "pkg:deb/ubuntu/ghostscript@9.26~dfsg+0-0ubuntu0.16.04.14?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
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},
{
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}
],
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}
],
"versions": [
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"9.16~dfsg~0-0ubuntu4",
"9.18~dfsg~0-0ubuntu1",
"9.18~dfsg~0-0ubuntu2",
"9.18~dfsg~0-0ubuntu2.2",
"9.18~dfsg~0-0ubuntu2.3",
"9.18~dfsg~0-0ubuntu2.4",
"9.18~dfsg~0-0ubuntu2.6",
"9.18~dfsg~0-0ubuntu2.7",
"9.18~dfsg~0-0ubuntu2.8",
"9.18~dfsg~0-0ubuntu2.9",
"9.25~dfsg+1-0ubuntu0.16.04.1",
"9.25~dfsg+1-0ubuntu0.16.04.2",
"9.25~dfsg+1-0ubuntu0.16.04.3",
"9.26~dfsg+0-0ubuntu0.16.04.1",
"9.26~dfsg+0-0ubuntu0.16.04.3",
"9.26~dfsg+0-0ubuntu0.16.04.4",
"9.26~dfsg+0-0ubuntu0.16.04.5",
"9.26~dfsg+0-0ubuntu0.16.04.6",
"9.26~dfsg+0-0ubuntu0.16.04.7",
"9.26~dfsg+0-0ubuntu0.16.04.8",
"9.26~dfsg+0-0ubuntu0.16.04.9",
"9.26~dfsg+0-0ubuntu0.16.04.10",
"9.26~dfsg+0-0ubuntu0.16.04.11",
"9.26~dfsg+0-0ubuntu0.16.04.12",
"9.26~dfsg+0-0ubuntu0.16.04.13"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libopenjp2-7",
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},
{
"binary_name": "libopenjp2-tools",
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},
{
"binary_name": "libopenjp3d-tools",
"binary_version": "2.1.2-1.1+deb9u6ubuntu0.1~esm3"
},
{
"binary_name": "libopenjp3d7",
"binary_version": "2.1.2-1.1+deb9u6ubuntu0.1~esm3"
},
{
"binary_name": "libopenjpip-dec-server",
"binary_version": "2.1.2-1.1+deb9u6ubuntu0.1~esm3"
},
{
"binary_name": "libopenjpip-server",
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},
{
"binary_name": "libopenjpip-viewer",
"binary_version": "2.1.2-1.1+deb9u6ubuntu0.1~esm3"
},
{
"binary_name": "libopenjpip7",
"binary_version": "2.1.2-1.1+deb9u6ubuntu0.1~esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "openjpeg2",
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},
"ranges": [
{
"events": [
{
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},
{
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}
],
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}
],
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]
},
{
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{
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},
{
"binary_name": "blender-data",
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]
},
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{
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"versions": [
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]
},
{
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{
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},
{
"binary_name": "insighttoolkit4-python",
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},
{
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}
]
},
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},
"ranges": [
{
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{
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}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.8.1-1ubuntu3",
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]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopenjpeg-java",
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},
{
"binary_name": "libopenjpeg5",
"binary_version": "1:1.5.2-3.1ubuntu0.1~esm2"
},
{
"binary_name": "openjpeg-tools",
"binary_version": "1:1.5.2-3.1ubuntu0.1~esm2"
},
{
"binary_name": "openjpip-dec-server",
"binary_version": "1:1.5.2-3.1ubuntu0.1~esm2"
},
{
"binary_name": "openjpip-server",
"binary_version": "1:1.5.2-3.1ubuntu0.1~esm2"
},
{
"binary_name": "openjpip-viewer",
"binary_version": "1:1.5.2-3.1ubuntu0.1~esm2"
},
{
"binary_name": "openjpip-viewer-xerces",
"binary_version": "1:1.5.2-3.1ubuntu0.1~esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "openjpeg",
"purl": "pkg:deb/ubuntu/openjpeg@1:1.5.2-3.1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:1.5.2-3.1",
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]
},
{
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"binaries": [
{
"binary_name": "texmaker",
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},
{
"binary_name": "texmaker-data",
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}
]
},
"package": {
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},
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{
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],
"versions": [
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]
},
{
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{
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},
{
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},
{
"binary_name": "libgs9",
"binary_version": "9.26~dfsg+0-0ubuntu0.18.04.14"
},
{
"binary_name": "libgs9-common",
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}
]
},
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{
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{
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},
{
"fixed": "9.26~dfsg+0-0ubuntu0.18.04.14"
}
],
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],
"versions": [
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"9.25~dfsg+1-0ubuntu0.18.04.2",
"9.26~dfsg+0-0ubuntu0.18.04.1",
"9.26~dfsg+0-0ubuntu0.18.04.3",
"9.26~dfsg+0-0ubuntu0.18.04.4",
"9.26~dfsg+0-0ubuntu0.18.04.5",
"9.26~dfsg+0-0ubuntu0.18.04.6",
"9.26~dfsg+0-0ubuntu0.18.04.7",
"9.26~dfsg+0-0ubuntu0.18.04.8",
"9.26~dfsg+0-0ubuntu0.18.04.9",
"9.26~dfsg+0-0ubuntu0.18.04.10",
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},
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},
{
"binary_name": "libopenjp2-tools",
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},
{
"binary_name": "libopenjp3d-tools",
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{
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},
{
"binary_name": "libopenjpip-dec-server",
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},
{
"binary_name": "libopenjpip-server",
"binary_version": "2.3.0-2+deb10u2build0.18.04.1"
},
{
"binary_name": "libopenjpip-viewer",
"binary_version": "2.3.0-2+deb10u2build0.18.04.1"
},
{
"binary_name": "libopenjpip7",
"binary_version": "2.3.0-2+deb10u2build0.18.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "openjpeg2",
"purl": "pkg:deb/ubuntu/openjpeg2@2.3.0-2+deb10u2build0.18.04.1?arch=source\u0026distro=bionic"
},
"ranges": [
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],
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"versions": [
"2.2.0-1",
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]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "blender",
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{
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}
]
},
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},
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{
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]
},
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},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libqt5webengine-data",
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},
{
"binary_name": "libqt5webengine5",
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{
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},
{
"binary_name": "libqt5webenginewidgets5",
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{
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},
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{
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},
{
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},
"package": {
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},
{
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{
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{
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{
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{
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},
{
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{
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},
{
"binary_name": "libopenjpip7",
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}
]
},
"package": {
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"name": "openjpeg2",
"purl": "pkg:deb/ubuntu/openjpeg2@2.3.1-1ubuntu4.20.04.1?arch=source\u0026distro=focal"
},
"ranges": [
{
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{
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{
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],
"type": "ECOSYSTEM"
}
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"versions": [
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},
{
"ecosystem_specific": {
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{
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},
{
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"versions": [
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{
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"5.15.19+dfsg2-4ubuntu0.1~esm1"
]
}
],
"aliases": [],
"details": "There\u0027s a flaw in openjpeg\u0027s 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.",
"id": "UBUNTU-CVE-2020-27842",
"modified": "2026-05-29T10:24:59Z",
"published": "2021-01-05T18:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-27842"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4685-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4686-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5952-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27842"
}
],
"related": [
"USN-4685-1",
"USN-4686-1",
"USN-5952-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2020-27842"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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