A buffer overflow in dnsmasq’s extract_addresses() function allows an attacker to trigger a heap out-of-bounds read and crash by exploiting a malformed DNS response, enabling extract_name() to advance the pointer past the record’s end.
Metrics
Affected Vendors & Products
| Vendors | Products |
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| Dnsmasq |
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References
History
Mon, 11 May 2026 20:45:00 +0000
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Mon, 11 May 2026 19:30:00 +0000
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Mon, 11 May 2026 19:00:00 +0000
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| First Time appeared |
Dnsmasq
Dnsmasq dnsmasq |
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| Weaknesses | CWE-125 | |
| Vendors & Products |
Dnsmasq
Dnsmasq dnsmasq |
Mon, 11 May 2026 18:45:00 +0000
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| References |
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Mon, 11 May 2026 17:30:00 +0000
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| Description | A buffer overflow in dnsmasq’s extract_addresses() function allows an attacker to trigger a heap out-of-bounds read and crash by exploiting a malformed DNS response, enabling extract_name() to advance the pointer past the record’s end. | |
| Title | CVE-2026-5172 | |
| References |
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MITRE
Status: PUBLISHED
Assigner: certcc
Published: 2026-05-11T16:48:46.219Z
Updated: 2026-05-11T19:57:28.843Z
Reserved: 2026-03-30T15:54:52.205Z
Link: CVE-2026-5172
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-05-11T18:16:41.920
Modified: 2026-05-11T21:19:03.053
Link: CVE-2026-5172
Redhat
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