CVE-2026-1678

dnsunpackname caches the buffer tailroom once and reuses it while appending DNS labels. As the buffer grows, the cached size becomes incorrect, and the final null terminator can be written past the buffer. With assertions disabled default, a malicious DNS response can trigger an out-of-bounds wri...

CVE-2026-1678

dnsunpackname caches the buffer tailroom once and reuses it while appending DNS labels. As the buffer grows, the cached size becomes incorrect, and the final null terminator can be written past the buffer. With assertions disabled default, a malicious DNS response can trigger an out-of-bounds wri...

CVE-2026-1678

dnsunpackname caches the buffer tailroom once and reuses it while appending DNS labels. As the buffer grows, the cached size becomes incorrect, and the final null terminator can be written past the buffer. With assertions disabled default, a malicious DNS response can trigger an out-of-bounds wri...

CVE-2026-1678

CVE-2026-1678 affects Zephyr’s DNS name parser. The function dns_unpack_name() caches the buffer tailroom and reuses it when appending DNS labels; as the buffer grows, the cached size can become incorrect, allowing the final null terminator to be written past the buffer. With assertions disabled ...

CVE-2026-1678 dns: memory‑safety issue in the DNS name parser

dnsunpackname caches the buffer tailroom once and reuses it while appending DNS labels. As the buffer grows, the cached size becomes incorrect, and the final null terminator can be written past the buffer. With assertions disabled default, a malicious DNS response can trigger an out-of-bounds wri...

Zephyr 安全漏洞

Zephyr is an open-source, scalable real-time operating system RTOS developed by Zephyr. Versions of Zephyr prior to 4.3.0 contained security vulnerabilities. These vulnerabilities were caused by improper handling of the tail space in the buffer used by the dnsunpackname function, which could lead...

PT-2026-23408

Name of the Vulnerable Software and Affected Versions Zephyr RTOS affected versions not specified Description The dns unpack name function in Zephyr RTOS contains a flaw where it caches the buffer tailroom and reuses it when appending DNS labels. As the buffer expands, the cached size becomes...

CVE-2022-28708

On F5 BIG-IP 16.1.x versions prior to 16.1.2.2 and 15.1.x versions prior to 15.1.5.1, when a BIG-IP DNS resolver-enabled, HTTP-Explicit or SOCKS profile is configured on a virtual server, an undisclosed DNS response can cause the Traffic Management Microkernel TMM process to terminate. Note:...