Vulnerabilities > CVE-2018-12447 - Integer Overflow or Wraparound vulnerability in Libbpg Project Libbpg 0.9.8

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL

Summary

The restore_tqb_pixels function in hevc_filter.c in libavcodec, as used in libbpg 0.9.8 and other products, has an integer overflow that leads to a heap-based buffer overflow and remote code execution.

Vulnerable Configurations

Part Description Count
Application
Libbpg_Project
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Forced Integer Overflow
    This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.