Critical
Security advisory
Integer overflow in the MDC2_Update function in crypto/mdc2/mdc2dgst.c in OpenSSL before 1.1.0 allows remote attackers to cause a denial of service (out-of-bounds write and application crash) or possibly have unspecified other impact via unknown vectors.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-6303
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:20 UTC · Revision 1
Source evidence
Integer overflow in the MDC2_Update function in crypto/mdc2/mdc2dgst.c in OpenSSL before 1.1.0 allows remote attackers to cause a denial of service (out-of-bounds write and application crash) or possibly have unspecified other impact via unknown vectors.
osv:CVE-2016-6303
Complete source record
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"modified": "2026-10-24T10:30:52.067189996Z",
"provider": "osv",
"references": [
"https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf",
"https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=55d83bf7c10c7b205fffa23fa7c3977491e56c07",
"https://bto.bluecoat.com/security-advisory/sa132",
"https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312",
"https://nodejs.org/en/blog/vulnerability/september-2016-security-releases/",
"https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc",
"https://www.tenable.com/security/tns-2016-16",
"https://www.tenable.com/security/tns-2016-20",
"https://www.tenable.com/security/tns-2016-21",
"https://bugzilla.redhat.com/show_bug.cgi?id=1370146"
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"evidence": "/id"
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},
"source_id": "core-osv",
"document_id": 437609,
"published_at": "2016-09-16T05:59:13.363+00:00"
}