full-disclosure

Open Source and information security mailing list archives

Message-ID: <ae93356c-c2a5-ecbb-330f-f957b65bfef3@yandex.ru>
Date: Sat, 4 Mar 2023 18:20:30 +0300
From: Erg Noor <fuzzingrf@...dex.ru>
To: fulldisclosure@...lists.org
Subject: [FD] OpenBSD overflow

Hi,

Fun OpenBSD bug.

ip_dooptions() will allow IPOPT_SSRR with optlen = 2.

save_rte() will set isr_nhops to very large value, which will cause 
overflow in next ip_srcroute() call.

More info is here https://github.com/fuzzingrf/openbsd_tcpip_overflow/

-erg
_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: https://seclists.org/fulldisclosure/

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives