CVE-2017-7274 : Exploit Details and Defense Strategies

A vulnerability in radare2 version 1.3.0 can lead to a denial of service condition due to a NULL pointer dereference in the r_pkcs7_parse_cms function.

Understanding CVE-2017-7274

This CVE involves a vulnerability in radare2 version 1.3.0 that can be exploited remotely to cause a denial of service by crashing the application.

What is CVE-2017-7274?

The vulnerability in radare2 version 1.3.0 allows remote attackers to trigger a denial of service condition by providing a specially crafted PE file that causes a NULL pointer dereference in the r_pkcs7_parse_cms function.

The Impact of CVE-2017-7274

The exploitation of this vulnerability can lead to a crash of the application, resulting in a denial of service for legitimate users.

Technical Details of CVE-2017-7274

This section provides more technical insights into the CVE.

Vulnerability Description

The r_pkcs7_parse_cms function in libr/util/r_pkcs7.c in radare2 1.3.0 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted PE file.

Affected Systems and Versions

Affected Version: 1.3.0
Systems using radare2 version 1.3.0

Exploitation Mechanism

By providing a carefully crafted PE file, attackers can trigger a NULL pointer dereference in the r_pkcs7_parse_cms function, leading to a crash of the application.

Mitigation and Prevention

Protecting systems from CVE-2017-7274 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply the patch provided by the vendor to address the vulnerability.
Monitor vendor updates for any security patches related to radare2.

Long-Term Security Practices

Regularly update software and applications to the latest versions.
Implement network security measures to detect and prevent remote attacks.

Patching and Updates

Ensure that radare2 is updated to a version where the vulnerability has been patched.