Exploitation Summary
EIP tracks 1 public exploit for CVE-2015-3798. PoCs published by Google Security Research.
AI-analyzed exploit summary The exploit targets an integer overflow in the OS X regex engine (tre_tnfa_run_parallel) leading to a negative total_bytes value, causing a heap-based buffer overflow via memset. The PoC constructs a malicious regex with excessive nesting and captures to trigger the vulnerability.
Description
The TRE library in Libc in Apple iOS before 8.4.1 and OS X before 10.10.5 allows context-dependent attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted regular expression, a different vulnerability than CVE-2015-3796 and CVE-2015-3797.
Exploits (1)
The exploit targets an integer overflow in the OS X regex engine (tre_tnfa_run_parallel) leading to a negative total_bytes value, causing a heap-based buffer overflow via memset. The PoC constructs a malicious regex with excessive nesting and captures to trigger the vulnerability.