LowFix available
pngcheck — security advisory
A flaw was found in the check_chunk_name() function of pngcheck-2.4.0. An attacker able to pass a malicious file to be processed by pngcheck could cause a temporary denial of service, posing a low risk to application availability.
- Products
- pngcheck
- Affected versions
- 2.3.0-7, 3.0.3-3, 4.0.0+git20250707.6419815-1, 4.0.1-1
- Fixed versions
- 2.3.0-7ubuntu0.16.04.1~esm1, 2.3.0-7ubuntu0.18.04.1~esm1, 2.3.0-7ubuntu0.20.04.1
- CVEs
- CVE-2020-27818
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:34 UTC · Revision 1
Source evidence
A flaw was found in the check_chunk_name() function of pngcheck-2.4.0. An attacker able to pass a malicious file to be processed by pngcheck could cause a temporary denial of service, posing a low risk to application availability.
osv:UBUNTU-CVE-2020-27818
pngcheck
Fixed versions: 2.3.0-7ubuntu0.16.04.1~esm1
pngcheck
Fixed versions: 2.3.0-7ubuntu0.18.04.1~esm1
pngcheck
Fixed versions: 2.3.0-7ubuntu0.20.04.1
pngcheck
Fixed versions: Not specified
pngcheck
Fixed versions: Not specified
pngcheck
Fixed versions: Not specified
pngcheck
Fixed versions: Not specified
Complete source record
{
"id": "9677b70a6c383414acd90890cc4be5c1442fa062adf05e2b53642d56c87a4809",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-27818",
"method": "structured",
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"title": "UBUNTU-CVE-2020-27818",
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"metrics": [
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"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
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},
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],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
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"modified": "2026-10-17T12:55:45.264784133Z",
"provider": "osv",
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],
"references": [
"https://ubuntu.com/security/CVE-2020-27818",
"https://bugzilla.redhat.com/show_bug.cgi?id=1902011",
"https://ubuntu.com/security/notices/USN-6182-1",
"https://www.cve.org/CVERecord?id=CVE-2020-27818"
]
},
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"source_id": "core-osv",
"document_id": 354021,
"published_at": "2020-12-08T01:15:00+00:00"
}