USN-7010-2 (UBUNTU-CVE-2021-41687)
Vulnerability from osv_ubuntu – Published: 2025-07-08 05:47 – Updated: 2026-06-25 10:46 – Source websiteUSN-7010-1 fixed vulnerabilities in DCMTK. The update introduced a regression. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Jinsheng Ba discovered that DCMTK incorrectly handled certain requests. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-41687, CVE-2021-41688, CVE-2021-41689, CVE-2021-41690)
Sharon Brizinov and Noam Moshe discovered that DCMTK incorrectly handled pointers. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2022-2121)
It was discovered that DCMTK incorrectly handled certain inputs. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2022-43272)
It was discovered that DCMTK incorrectly handled certain inputs. If a user or an automated system were tricked into opening a certain specially crafted input file, a remote attacker could possibly use this issue to execute arbitrary code. This issue was only addressed in Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2024-28130)
It was discovered that DCMTK incorrectly handled memory when processing an invalid incoming DIMSE message. An attacker could possibly use this issue to cause a denial of service. (CVE-2024-34508, CVE-2024-34509)
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2021-41687",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "dcmtk",
"binary_version": "3.6.1~20150924-5ubuntu0.1~esm3"
},
{
"binary_name": "libdcmtk5",
"binary_version": "3.6.1~20150924-5ubuntu0.1~esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "dcmtk",
"purl": "pkg:deb/ubuntu/dcmtk@3.6.1~20150924-5ubuntu0.1~esm3?arch=source\u0026distro=esm-apps/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.1~20150924-5ubuntu0.1~esm3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.6.0-15.1",
"3.6.1~20150629-5",
"3.6.1~20150924-4",
"3.6.1~20150924-5",
"3.6.1~20150924-5ubuntu0.1~esm1",
"3.6.1~20150924-5ubuntu0.1~esm2"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2021-41687",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "dcmtk",
"binary_version": "3.6.2-3ubuntu0.1~esm3"
},
{
"binary_name": "libdcmtk12",
"binary_version": "3.6.2-3ubuntu0.1~esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "dcmtk",
"purl": "pkg:deb/ubuntu/dcmtk@3.6.2-3ubuntu0.1~esm3?arch=source\u0026distro=esm-apps/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.2-3ubuntu0.1~esm3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.6.2-2",
"3.6.2-2build1",
"3.6.2-3",
"3.6.2-3build1",
"3.6.2-3build2",
"3.6.2-3build3",
"3.6.2-3ubuntu0.1~esm1",
"3.6.2-3ubuntu0.1~esm2"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2021-41687",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "dcmtk",
"binary_version": "3.6.4-2.1ubuntu0.2"
},
{
"binary_name": "libdcmtk14",
"binary_version": "3.6.4-2.1ubuntu0.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "dcmtk",
"purl": "pkg:deb/ubuntu/dcmtk@3.6.4-2.1ubuntu0.2?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.4-2.1ubuntu0.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.6.4-2.1",
"3.6.4-2.1build1",
"3.6.4-2.1build2",
"3.6.4-2.1ubuntu0.1"
]
}
],
"aliases": [],
"details": "USN-7010-1 fixed vulnerabilities in DCMTK. The update introduced a\nregression. This update fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n Jinsheng Ba discovered that DCMTK incorrectly handled certain requests. If\n a user or an automated system were tricked into opening a certain specially\n crafted input file, a remote attacker could possibly use this issue to\n cause a denial of service. This issue only affected Ubuntu 20.04 LTS.\n (CVE-2021-41687, CVE-2021-41688, CVE-2021-41689, CVE-2021-41690)\n\n Sharon Brizinov and Noam Moshe discovered that DCMTK incorrectly handled\n pointers. If a user or an automated system were tricked into opening a\n certain specially crafted input file, a remote attacker could possibly use\n this issue to cause a denial of service. This issue only affected\n Ubuntu 20.04 LTS. (CVE-2022-2121)\n\n It was discovered that DCMTK incorrectly handled certain inputs. If a\n user or an automated system were tricked into opening a certain specially\n crafted input file, a remote attacker could possibly use this issue to\n cause a denial of service. This issue only affected Ubuntu 20.04 LTS.\n (CVE-2022-43272)\n\n It was discovered that DCMTK incorrectly handled certain inputs. If a\n user or an automated system were tricked into opening a certain specially\n crafted input file, a remote attacker could possibly use this issue to\n execute arbitrary code. This issue was only addressed in Ubuntu 20.04 LTS\n and Ubuntu 22.04 LTS. (CVE-2024-28130)\n\n It was discovered that DCMTK incorrectly handled memory when processing an\n invalid incoming DIMSE message. An attacker could possibly use this issue\n to cause a denial of service. (CVE-2024-34508, CVE-2024-34509)\n",
"id": "USN-7010-2",
"modified": "2026-06-25T10:46:30Z",
"published": "2025-07-08T05:47:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-7010-2"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-41687"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "dcmtk regression",
"upstream": [
"UBUNTU-CVE-2021-41687"
]
}
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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