nDPI 5.1.0 contains a memory access issue in the DNS dissector and serializer deserialization code. Specially crafted network input can cause byte-buffer addresses at odd offsets to be cast to uint16_t or wider integer pointers and directly dereferenced without alignment checks. This results in undefined behavior and can cause process termination in UBSan-instrumented builds or on strict-alignment architectures, leading to denial of service.
Metrics
Affected Vendors & Products
References
History
Sat, 26 Sep 2026 07:30:00 +0000
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ssvc
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Sat, 26 Sep 2026 05:30:00 +0000
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| Title | DNS Packet Parsing Alignment Violation Leading to Denial of Service in nDPI 5.1.0 |
Fri, 25 Sep 2026 02:45:00 +0000
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| First Time appeared |
Ntop
Ntop ndpi |
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| Vendors & Products |
Ntop
Ntop ndpi |
Thu, 24 Sep 2026 18:30:00 +0000
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| Weaknesses | CWE-1335 | |
| Metrics |
cvssV3_1
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Thu, 24 Sep 2026 15:45:00 +0000
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| Description | nDPI 5.1.0 contains a memory access issue in the DNS dissector and serializer deserialization code. Specially crafted network input can cause byte-buffer addresses at odd offsets to be cast to uint16_t or wider integer pointers and directly dereferenced without alignment checks. This results in undefined behavior and can cause process termination in UBSan-instrumented builds or on strict-alignment architectures, leading to denial of service. | |
| References |
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Status: PUBLISHED
Assigner: mitre
Published: 2026-09-24T00:00:00.000Z
Updated: 2026-09-24T17:53:09.601Z
Reserved: 2026-09-10T00:00:00.000Z
Link: CVE-2026-88357
Updated: 2026-09-24T17:53:02.984Z
Status : Deferred
Published: 2026-09-24T16:17:12.957
Modified: 2026-09-24T21:08:55.030
Link: CVE-2026-88357
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