CVE-2020-11528 : Security Advisory and Response

bit2spr 1992-06-07 has a stack-based buffer overflow (129-byte write) in conv_bitmap in bit2spr.c via a long line in a bitmap file.

Understanding CVE-2020-11528

This CVE describes a stack-based buffer overflow vulnerability in bit2spr 1992-06-07.

What is CVE-2020-11528?

The vulnerability in bit2spr 1992-06-07 allows an attacker to trigger a buffer overflow by exploiting a specific function in the software.

The Impact of CVE-2020-11528

This vulnerability could potentially lead to arbitrary code execution or denial of service if successfully exploited.

Technical Details of CVE-2020-11528

bit2spr 1992-06-07 is susceptible to a stack-based buffer overflow.

Vulnerability Description

The issue arises from a 129-byte write overflow in the conv_bitmap function in bit2spr.c when processing long lines in a bitmap file.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: Not applicable

Exploitation Mechanism

Attackers can craft a malicious bitmap file with an excessively long line to trigger the buffer overflow, potentially leading to unauthorized code execution.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.

Immediate Steps to Take

Disable or restrict access to the affected software until a patch is available.
Monitor network traffic for any signs of exploitation attempts.

Long-Term Security Practices

Regularly update and patch software to mitigate known vulnerabilities.
Implement secure coding practices to prevent buffer overflows and other common vulnerabilities.

Patching and Updates

Check for updates or patches from the software vendor to address the buffer overflow issue in bit2spr 1992-06-07.