CVE-2020-29651 Explained : Impact and Mitigation

A denial of service vulnerability exists in the py.path.svnwc component of py (python-py) through version 1.9.0. Attackers can exploit this issue to launch a compute-time denial of service attack by providing malicious input to the blame functionality.

Understanding CVE-2020-29651

This CVE involves a denial of service vulnerability in the py.path.svnwc component of py (python-py) through version 1.9.0.

What is CVE-2020-29651?

The vulnerability allows attackers to trigger a denial of service attack by manipulating regular expressions in the blame functionality of the affected component.

The Impact of CVE-2020-29651

Exploitation of this vulnerability can lead to a compute-time denial of service attack, impacting the availability of the system.

Technical Details of CVE-2020-29651

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability in the py.path.svnwc component of py (python-py) through version 1.9.0 enables attackers to cause a denial of service by providing malicious input to the blame functionality.

Affected Systems and Versions

Product: py (python-py)
Vendor: N/A
Versions affected: up to 1.9.0

Exploitation Mechanism

Attackers can exploit this vulnerability by supplying malicious input to the blame functionality, triggering a compute-time denial of service attack.

Mitigation and Prevention

Protecting systems from CVE-2020-29651 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor patches or updates promptly to mitigate the vulnerability.
Monitor and restrict input to the affected functionality to prevent exploitation.

Long-Term Security Practices

Regularly update software and dependencies to address known vulnerabilities.
Implement input validation mechanisms to filter out potentially malicious inputs.

Patching and Updates

Stay informed about security advisories from the vendor and apply patches as soon as they are available.