CVE-2026-48715: radvd-project radvdump, грешка в паметта

Описание

Оригинално описание

radvd is a router advertisement daemon for IPv6. Prior to version 2.21, the `radvdump` utility shipped with radvd contains a stack buffer overflow in the Route Information option parser. When processing a crafted ICMPv6 Router Advertisement, `print_ff()` copies up to 2032 bytes from attacker-controlled packet data into a 16-byte `struct in6_addr` on the stack, overflowing by up to 2016 bytes. Note that the main `radvd` daemon is not affected by the vulnerability. Version 2.21 patches the issue.

Засегнати продукти

• radvd-project radvdump: < 2.21

Вид слабост

• CWE-121 Препълване на буфера в стека

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-48715
• https://nvd.nist.gov/vuln/detail/CVE-2026-48715
• https://github.com/radvd-project/radvd/security/advisories/GHSA-52px-gh9p-m379
• https://github.com/radvd-project/radvd/commit/068bde13e3fd6a5fcdb6859e6a2acd293a325dc5