ubuntu-cve-2025-20234
Vulnerability from osv_ubuntu
Published
2025-06-18 17:15
Modified
2026-04-22 07:53
Summary
Details
A vulnerability in Universal Disk Format (UDF) processing of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to a memory overread during UDF file scanning. An attacker could exploit this vulnerability by submitting a crafted file containing UDF content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process, resulting in a DoS condition on the affected software. For a description of this vulnerability, see the .
Severity
5.3 (Medium)
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "clamav",
"binary_version": "1.4.3+dfsg-0ubuntu0.20.04.1+esm1"
},
{
"binary_name": "clamav-base",
"binary_version": "1.4.3+dfsg-0ubuntu0.20.04.1+esm1"
},
{
"binary_name": "clamav-daemon",
"binary_version": "1.4.3+dfsg-0ubuntu0.20.04.1+esm1"
},
{
"binary_name": "clamav-docs",
"binary_version": "1.4.3+dfsg-0ubuntu0.20.04.1+esm1"
},
{
"binary_name": "clamav-freshclam",
"binary_version": "1.4.3+dfsg-0ubuntu0.20.04.1+esm1"
},
{
"binary_name": "clamav-milter",
"binary_version": "1.4.3+dfsg-0ubuntu0.20.04.1+esm1"
},
{
"binary_name": "clamav-testfiles",
"binary_version": "1.4.3+dfsg-0ubuntu0.20.04.1+esm1"
},
{
"binary_name": "clamdscan",
"binary_version": "1.4.3+dfsg-0ubuntu0.20.04.1+esm1"
},
{
"binary_name": "libclamav12",
"binary_version": "1.4.3+dfsg-0ubuntu0.20.04.1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "clamav",
"purl": "pkg:deb/ubuntu/clamav@1.4.3+dfsg-0ubuntu0.20.04.1+esm1?arch=source\u0026distro=esm-infra/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.3+dfsg-0ubuntu0.20.04.1+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.101.4+dfsg-1ubuntu1",
"0.102.1+dfsg-1ubuntu1",
"0.102.1+dfsg-2ubuntu1",
"0.102.1+dfsg-2ubuntu2",
"0.102.2+dfsg-1ubuntu1",
"0.102.2+dfsg-2ubuntu1",
"0.102.3+dfsg-0ubuntu0.20.04.1",
"0.102.4+dfsg-0ubuntu0.20.04.1",
"0.103.2+dfsg-0ubuntu0.20.04.1",
"0.103.2+dfsg-0ubuntu0.20.04.2",
"0.103.5+dfsg-1~20.04.1",
"0.103.6+dfsg-0ubuntu0.20.04.1",
"0.103.8+dfsg-0ubuntu0.20.04.1",
"0.103.9+dfsg-0ubuntu0.20.04.1",
"0.103.11+dfsg-0ubuntu0.20.04.1",
"0.103.12+dfsg-0ubuntu0.20.04.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "clamav",
"binary_version": "1.4.3+dfsg-0ubuntu0.22.04.1"
},
{
"binary_name": "clamav-base",
"binary_version": "1.4.3+dfsg-0ubuntu0.22.04.1"
},
{
"binary_name": "clamav-daemon",
"binary_version": "1.4.3+dfsg-0ubuntu0.22.04.1"
},
{
"binary_name": "clamav-docs",
"binary_version": "1.4.3+dfsg-0ubuntu0.22.04.1"
},
{
"binary_name": "clamav-freshclam",
"binary_version": "1.4.3+dfsg-0ubuntu0.22.04.1"
},
{
"binary_name": "clamav-milter",
"binary_version": "1.4.3+dfsg-0ubuntu0.22.04.1"
},
{
"binary_name": "clamav-testfiles",
"binary_version": "1.4.3+dfsg-0ubuntu0.22.04.1"
},
{
"binary_name": "clamdscan",
"binary_version": "1.4.3+dfsg-0ubuntu0.22.04.1"
},
{
"binary_name": "libclamav12",
"binary_version": "1.4.3+dfsg-0ubuntu0.22.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "clamav",
"purl": "pkg:deb/ubuntu/clamav@1.4.3+dfsg-0ubuntu0.22.04.1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.3+dfsg-0ubuntu0.22.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.103.3+dfsg-1",
"0.103.4+dfsg-1",
"0.103.4+dfsg-1build1",
"0.103.5+dfsg-1",
"0.103.6+dfsg-0ubuntu0.22.04.1",
"0.103.8+dfsg-0ubuntu0.22.04.1",
"0.103.9+dfsg-0ubuntu0.22.04.1",
"0.103.11+dfsg-0ubuntu0.22.04.1",
"0.103.12+dfsg-0ubuntu0.22.04.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "clamav",
"binary_version": "1.4.3+dfsg-0ubuntu0.24.04.1"
},
{
"binary_name": "clamav-base",
"binary_version": "1.4.3+dfsg-0ubuntu0.24.04.1"
},
{
"binary_name": "clamav-daemon",
"binary_version": "1.4.3+dfsg-0ubuntu0.24.04.1"
},
{
"binary_name": "clamav-docs",
"binary_version": "1.4.3+dfsg-0ubuntu0.24.04.1"
},
{
"binary_name": "clamav-freshclam",
"binary_version": "1.4.3+dfsg-0ubuntu0.24.04.1"
},
{
"binary_name": "clamav-milter",
"binary_version": "1.4.3+dfsg-0ubuntu0.24.04.1"
},
{
"binary_name": "clamav-testfiles",
"binary_version": "1.4.3+dfsg-0ubuntu0.24.04.1"
},
{
"binary_name": "clamdscan",
"binary_version": "1.4.3+dfsg-0ubuntu0.24.04.1"
},
{
"binary_name": "libclamav12",
"binary_version": "1.4.3+dfsg-0ubuntu0.24.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "clamav",
"purl": "pkg:deb/ubuntu/clamav@1.4.3+dfsg-0ubuntu0.24.04.1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.3+dfsg-0ubuntu0.24.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.2+dfsg-1ubuntu1",
"1.0.3+dfsg-2ubuntu1",
"1.0.4+dfsg-0ubuntu1",
"1.0.5+dfsg-1ubuntu1",
"1.0.5+dfsg-1.1ubuntu2",
"1.0.5+dfsg-1.1ubuntu3",
"1.0.7+dfsg-0ubuntu0.24.04.1",
"1.0.8+dfsg-0ubuntu0.24.04.1"
]
}
],
"aliases": [],
"details": "A vulnerability in Universal Disk Format (UDF) processing of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to a memory overread during UDF file scanning. An attacker could exploit this vulnerability by submitting a crafted file containing UDF content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process, resulting in a DoS condition on the affected software. For a description of this vulnerability, see the .",
"id": "UBUNTU-CVE-2025-20234",
"modified": "2026-04-22T07:53:21Z",
"published": "2025-06-18T17:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2025-20234"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-20234"
},
{
"type": "REPORT",
"url": "https://blog.clamav.net/2025/06/clamav-143-and-109-security-patch.html"
},
{
"type": "REPORT",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-udf-hmwd9nDy"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-7615-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-7615-2"
}
],
"related": [
"USN-7615-1",
"USN-7615-2"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2025-20234"
]
}
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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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