CVE-2017-16357 : Vulnerability Insights and Analysis

Version 2.0.1 of radare encountered a memory corruption weakness in the functions store_versioninfo_gnu_verdef() and store_versioninfo_gnu_verneed() within the file elf.c, resulting in an invalid free operation due to a lack of proper validation for sh_size when allocating memory.

Understanding CVE-2017-16357

In radare 2.0.1, a memory corruption vulnerability exists in store_versioninfo_gnu_verdef() and store_versioninfo_gnu_verneed() in libr/bin/format/elf/elf.c, as demonstrated by an invalid free operation.

What is CVE-2017-16357?

The vulnerability in radare 2.0.1 leads to a memory corruption issue due to improper sh_size validation when allocating memory.

The Impact of CVE-2017-16357

The vulnerability allows for an invalid free operation, potentially leading to exploitation by attackers to execute arbitrary code or crash the application.

Technical Details of CVE-2017-16357

Vulnerability Description

The vulnerability in radare 2.0.1 is a memory corruption weakness in the functions store_versioninfo_gnu_verdef() and store_versioninfo_gnu_verneed() within the file elf.c.

Affected Systems and Versions

Product: N/A
Vendor: N/A
Version: 2.0.1

Exploitation Mechanism

The vulnerability occurs due to a lack of proper validation for sh_size when allocating memory, leading to an invalid free operation.

Mitigation and Prevention

Immediate Steps to Take

Update to a patched version of radare to mitigate the vulnerability.
Implement proper input validation and memory handling mechanisms in software development.

Long-Term Security Practices

Regularly update software and libraries to address known vulnerabilities.
Conduct security assessments and code reviews to identify and fix potential weaknesses.

Patching and Updates

Apply patches and updates provided by the software vendor to address the memory corruption vulnerability in radare 2.0.1.