usn-7972-2
Vulnerability from osv_ubuntu
Published
2026-05-26 20:39
Modified
2026-05-26 20:39
Summary
opencc vulnerability
Details
USN-7972-1 fixed a vulnerability in OpenCC. This update provides the corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.
Original advisory details:
It was discovered that OpenCC incorrectly handled truncated UTF-8 input. An attacker could possibly use this issue to cause OpenCC to crash, resulting in a denial of service.
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2025-15536",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
"type": "CVSS_V4"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libopencc2",
"binary_version": "1.0.4-5ubuntu0.1~esm1"
},
{
"binary_name": "libopencc2-data",
"binary_version": "1.0.4-5ubuntu0.1~esm1"
},
{
"binary_name": "opencc",
"binary_version": "1.0.4-5ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "opencc",
"purl": "pkg:deb/ubuntu/opencc@1.0.4-5ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.4-5ubuntu0.1~esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.4-5"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2025-15536",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
"type": "CVSS_V4"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libopencc2",
"binary_version": "1.0.5+git20190530-1ubuntu0.1~esm1"
},
{
"binary_name": "libopencc2-data",
"binary_version": "1.0.5+git20190530-1ubuntu0.1~esm1"
},
{
"binary_name": "opencc",
"binary_version": "1.0.5+git20190530-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "opencc",
"purl": "pkg:deb/ubuntu/opencc@1.0.5+git20190530-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.5+git20190530-1ubuntu0.1~esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.5-2",
"1.0.5+git20190530-1",
"1.0.5+git20190530-1build1"
]
}
],
"aliases": [],
"details": "USN-7972-1 fixed a vulnerability in OpenCC. This update provides the\ncorresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.\n\nOriginal advisory details:\n\n It was discovered that OpenCC incorrectly handled truncated UTF-8 input.\n An attacker could possibly use this issue to cause OpenCC to crash,\n resulting in a denial of service.",
"id": "USN-7972-2",
"modified": "2026-05-26T20:39:08Z",
"published": "2026-05-26T20:39:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-7972-2"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2025-15536"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "opencc vulnerability",
"upstream": [
"UBUNTU-CVE-2025-15536"
]
}
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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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