Skip to main content

Improper Restriction of Operations within the Bounds of a Memory Buffer


Severity High
Score 9.8/10


Heap-based buffer overflow in "libavformat/http.c" in FFmpeg prior to 2.8.10, 2.9-dev prior to 3.0.5, 3.1.x prior to 3.1.6, 3.2.x prior to 3.2.2, 3.3-dev, 5.1, and 5.2-dev allows remote web servers to execute arbitrary code via a negative chunk size in an HTTP response.

  • LOW
  • HIGH
  • NONE
  • NONE
  • HIGH
  • HIGH

CWE-119 - Buffer Overflow

Buffer overflow attacks involve data transit and operations exceeding the restricted memory buffer, thereby corrupting or overwriting data in adjacent memory locations. Such overflow allows the attacker to run arbitrary code or manipulate the existing code to cause privilege escalation, data breach, denial of service, system crash and even complete system compromise. Given that languages such as C and C++ lack default safeguards against overwriting or accessing data in their memory, applications utilizing these languages are most susceptible to buffer overflows attacks.

Advisory Timeline

  • Published