Описание
Security update for radvd
This update for radvd fixes the following issue
- CVE-2026-48715: crafted ICMPv6 Router Advertisement can lead to a stack-based buffer overflow (bsc#1268641).
Changes for radvd:
- Update to version 2.21.
- feat: RFC8319 support: Increase max AdvDefaultLifetime and MaxRtrAdvInterval.
- feat: Add DHCPv6-PD preferred flag.
- fix: improve file checks for procfs knobs.
- feat: allow libc strlcpy.
- fix: make libcheck fatal if missing with --with-check.
- refactor: make drop_root_privileges reusable.
- fix: support incoming jumbo packets.
- Avoid libbsd header with libc strlcpy.
Список пакетов
openSUSE Leap 16.0
radvd-2.21-160000.1.1
Ссылки
- SUSE Security Ratings
- SUSE Bug 1268641
- SUSE CVE CVE-2026-48715 page
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.
Затронутые продукты
openSUSE Leap 16.0:radvd-2.21-160000.1.1
Ссылки
- CVE-2026-48715
- SUSE Bug 1268641