ubuntu-cve-2020-21890
Vulnerability from osv_ubuntu
Published
2023-08-22 19:16
Modified
2026-04-22 07:39
Summary
Details
Buffer Overflow vulnerability in clj_media_size function in devices/gdevclj.c in Artifex Ghostscript 9.50 allows remote attackers to cause a denial of service or other unspecified impact(s) via opening of crafted PDF document.
Severity
7.8 (High)
N/A (UNKNOWN)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ghostscript",
"binary_version": "9.26~dfsg+0-0ubuntu0.16.04.14+esm7"
},
{
"binary_name": "ghostscript-x",
"binary_version": "9.26~dfsg+0-0ubuntu0.16.04.14+esm7"
},
{
"binary_name": "libgs9",
"binary_version": "9.26~dfsg+0-0ubuntu0.16.04.14+esm7"
},
{
"binary_name": "libgs9-common",
"binary_version": "9.26~dfsg+0-0ubuntu0.16.04.14+esm7"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "ghostscript",
"purl": "pkg:deb/ubuntu/ghostscript@9.26~dfsg+0-0ubuntu0.16.04.14+esm7?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "9.26~dfsg+0-0ubuntu0.16.04.14+esm7"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"9.16~dfsg~0-0ubuntu3",
"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",
"9.26~dfsg+0-0ubuntu0.16.04.14",
"9.26~dfsg+0-0ubuntu0.16.04.14+esm1",
"9.26~dfsg+0-0ubuntu0.16.04.14+esm2",
"9.26~dfsg+0-0ubuntu0.16.04.14+esm3",
"9.26~dfsg+0-0ubuntu0.16.04.14+esm4",
"9.26~dfsg+0-0ubuntu0.16.04.14+esm5",
"9.26~dfsg+0-0ubuntu0.16.04.14+esm6"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ghostscript",
"binary_version": "9.26~dfsg+0-0ubuntu0.18.04.18+esm2"
},
{
"binary_name": "ghostscript-x",
"binary_version": "9.26~dfsg+0-0ubuntu0.18.04.18+esm2"
},
{
"binary_name": "libgs9",
"binary_version": "9.26~dfsg+0-0ubuntu0.18.04.18+esm2"
},
{
"binary_name": "libgs9-common",
"binary_version": "9.26~dfsg+0-0ubuntu0.18.04.18+esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "ghostscript",
"purl": "pkg:deb/ubuntu/ghostscript@9.26~dfsg+0-0ubuntu0.18.04.18+esm2?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "9.26~dfsg+0-0ubuntu0.18.04.18+esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"9.21~dfsg+1-0ubuntu3",
"9.22~dfsg+1-0ubuntu1",
"9.22~dfsg+1-0ubuntu1.1",
"9.22~dfsg+1-0ubuntu1.2",
"9.25~dfsg+1-0ubuntu0.18.04.1",
"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",
"9.26~dfsg+0-0ubuntu0.18.04.11",
"9.26~dfsg+0-0ubuntu0.18.04.12",
"9.26~dfsg+0-0ubuntu0.18.04.13",
"9.26~dfsg+0-0ubuntu0.18.04.14",
"9.26~dfsg+0-0ubuntu0.18.04.15",
"9.26~dfsg+0-0ubuntu0.18.04.16",
"9.26~dfsg+0-0ubuntu0.18.04.17",
"9.26~dfsg+0-0ubuntu0.18.04.18",
"9.26~dfsg+0-0ubuntu0.18.04.18+esm1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ghostscript",
"binary_version": "9.50~dfsg-5ubuntu4.10"
},
{
"binary_name": "ghostscript-x",
"binary_version": "9.50~dfsg-5ubuntu4.10"
},
{
"binary_name": "libgs9",
"binary_version": "9.50~dfsg-5ubuntu4.10"
},
{
"binary_name": "libgs9-common",
"binary_version": "9.50~dfsg-5ubuntu4.10"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "ghostscript",
"purl": "pkg:deb/ubuntu/ghostscript@9.50~dfsg-5ubuntu4.10?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "9.50~dfsg-5ubuntu4.10"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"9.27~dfsg+0-0ubuntu3",
"9.27~dfsg+0-0ubuntu4",
"9.50~dfsg-5ubuntu1",
"9.50~dfsg-5ubuntu2",
"9.50~dfsg-5ubuntu3",
"9.50~dfsg-5ubuntu4",
"9.50~dfsg-5ubuntu4.1",
"9.50~dfsg-5ubuntu4.2",
"9.50~dfsg-5ubuntu4.3",
"9.50~dfsg-5ubuntu4.4",
"9.50~dfsg-5ubuntu4.5",
"9.50~dfsg-5ubuntu4.6",
"9.50~dfsg-5ubuntu4.7",
"9.50~dfsg-5ubuntu4.8",
"9.50~dfsg-5ubuntu4.9"
]
}
],
"aliases": [],
"details": "Buffer Overflow vulnerability in clj_media_size function in devices/gdevclj.c in Artifex Ghostscript 9.50 allows remote attackers to cause a denial of service or other unspecified impact(s) via opening of crafted PDF document.",
"id": "UBUNTU-CVE-2020-21890",
"modified": "2026-04-22T07:39:30Z",
"published": "2023-08-22T19:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-21890"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6364-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-21890"
}
],
"related": [
"USN-6364-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2020-21890"
]
}
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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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