An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.
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History
Mon, 09 Jun 2025 16:15:00 +0000
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cvssV3_1
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Status: PUBLISHED
Assigner: mitre
Published: 2019-01-09T16:00:00.000Z
Updated: 2025-06-09T15:26:04.926Z
Reserved: 2019-01-09T00:00:00.000Z
Link: CVE-2018-20679

Updated: 2024-08-05T12:05:17.686Z

Status : Modified
Published: 2019-01-09T16:29:00.273
Modified: 2025-06-09T16:15:29.090
Link: CVE-2018-20679
