CVE-2023-33864

StreamReader::ReadFromExternal in RenderDoc before 1.27 allows an Integer Overflow with a resultant Buffer Overflow

Critical · published June 7, 2023

CVSS v3.1
9.8
EPSS
4%
Percentile
90.8
In the wild
Unconfirmed
What it is

🔥 An integer overflow in RenderDoc before version 1.27 could allow a buffer overflow, making this a ticking time bomb in your graphics debugging toolkit! Think of it as a water tank that overfills — once the water spills over the edge, it can wreak havoc downstream, flooding everything in its path. This vulnerability lets attackers exploit the overflow just like that water, leading to unpredictable behavior and potential data loss. An attacker could potentially crash the application or execute malicious code, gaining unauthorized access to sensitive information or even taking control of the system. This is absolutely devastating if left unchecked, especially in environments relying on RenderDoc for secure graphics debugging.

Put simply

Think of it as a water tank that overfills — once the water spills over the edge, it can wreak havoc downstream, flooding everything in its path. This vulnerability lets attackers exploit the overflow just like that water, leading to unpredictable behavior and potential data loss. The issue arises from the StreamReader::ReadFromExternal method, where the use of uint32_t on the difference between m_BufferSize and m_InputSize can lead to an overflow if m_InputSize exceeds m_BufferSize, resulting in a buffer overflow scenario.

What to do

An attacker could potentially crash the application or execute malicious code, gaining unauthorized access to sensitive information or even taking control of the system. This is absolutely devastating if left unchecked, especially in environments relying on RenderDoc for secure graphics debugging. To remediate this vulnerability, upgrade RenderDoc to version 1.27 or later immediately. Additionally, review and validate input sizes rigorously in your applications to prevent similar issues. Don't forget to conduct thorough testing after the upgrade! You've got this! Patch up and fortify your defenses, and you'll be secure in no time! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.04158 · 90.8th percentile
Published
2023-06-07T00:00Z
EPSS history
Timeline
  • 07 JUN 00:00Z
    StreamReader::ReadFromExternal in RenderDoc before 1.27 allows an Integer Overflow with a resultant Buffer Overflow
    cvelistv5