Android Security Security Blog

Critical Integer Overflow in C: How a Simple Multiplication Almost Caused Heap Corruption

A critical integer overflow vulnerability was discovered and patched in `src/asb_governor.c`, where an unchecked multiplication during buffer reallocation could produce a dangerously undersized heap allocation on 32-bit systems. An attacker with a crafted session file could trigger heap corruption, potentially leading to arbitrary code execution. The fix adds proper overflow detection before any memory allocation, closing a classic but devastating class of memory safety bug.

#integer-overflow#heap-corruption#memory-safety+4 more

orbisai0security

May 23, 2026

critical8 min

Heap Buffer Overflows in YAML Parser: How Unchecked memcpy Calls Create Critical Attack Vectors

A critical heap buffer overflow vulnerability was discovered and patched in the YAML parser embedded within an Android VPN application, where five unvalidated `memcpy` calls could allow an attacker to corrupt heap memory by supplying a crafted YAML configuration file. This class of vulnerability is particularly dangerous because it can lead to arbitrary code execution or application crashes in security-sensitive contexts. The fix adds proper bounds validation before each copy operation, eliminat

#buffer-overflow#c-security#yaml-parser+4 more

orbisai0security

May 13, 2026