OESA-2026-4660

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OESA-2026-4660

Summary: tftp security update

Details: TFTP which is the abbreviation of Trivial File Fransfer Protocol enables users to transfer files between local host and remote machine. This package tftp is a client implementing TFTP. Security Fix(es): A flaw was found in tftp-hpa. When the `in.tftpd` remap engine processes an inverse remap rule that also aborts with a non-empty custom error message, it can pass invalid match offsets to the `genmatchstring()` function. This leads to out-of-bounds read/write operations. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted request, causing the daemon to crash and resulting in a denial of service.(CVE-2026-85234)

References: https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4660, https://nvd.nist.gov/vuln/detail/CVE-2026-85234