full-disclosure

Open Source and information security mailing list archives

Date: Wed, 1 Mar 2023 19:02:10 +0300
From: Erg Noor <fuzzingrf@...dex.ru>
To: fulldisclosure@...lists.org
Subject: [FD] NetBSD overflow

Hi,

Trivial overflow in hfslib_reada_node_offset, while loop has no range 
checks.

|size_t hfslib_reada_node_offsets(void* in_bytes, uint16_t* 
out_offset_array) { void* ptr; if (in_bytes == NULL || out_offset_array 
== NULL) return 0; ptr = in_bytes; out_offset_array--; do { 
out_offset_array++; *out_offset_array = be16tohp(&ptr); } while 
(*out_offset_array != (uint16_t)14); return ((uint8_t*)ptr - 
(uint8_t*)in_bytes); }|

Repro is here https://github.com/fuzzingrf/netbsd_hfs

_______________________________________________
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