CVE-2023-52927: Turning a Forgotten #Syzkaller Report into #kCTF #Exploit
CVE-2023-52927: Turning a Forgotten Syzkaller Report into kCTF Exploit
Table of Contents I. Introduction II. Netfilter hooks, nf_tables, nf_conntrack, nf_nat and nf_queue 2.1 Netfilter hooks 2.2 nf_tables 2.3 nf_conntrack 2.4 nf_nat 2.5 nf_queue III. The Forgotten Syzkaller Report IV. Root Cause Analysis of a “no reproducer” Syzkaller UAF Report 4.1 Allocation Backtrace 4.2 Free Backtrace 4.3 UAF Backtrace 4.4 Root Cause V. Crafting a Reproducer to Trigger the KASAN UAF 5.1 Allocate a template nf_conn by calling nft_ct_set_zone_eval() 5.2 Setup nf_nat_setup_info() function 5.


















