CVE-2017-13048 : Security Advisory and Response

A buffer over-read vulnerability exists in the print-rsvp.c:rsvp_obj_print() function of the RSVP parser in tcpdump versions prior to 4.9.2.

Understanding CVE-2017-13048

What is CVE-2017-13048?

The CVE-2017-13048 vulnerability is a buffer over-read issue found in the RSVP parser within tcpdump versions before 4.9.2.

The Impact of CVE-2017-13048

This vulnerability could allow an attacker to exploit the buffer over-read, potentially leading to information disclosure or denial of service.

Technical Details of CVE-2017-13048

Vulnerability Description

The RSVP parser in tcpdump before version 4.9.2 is susceptible to a buffer over-read in the print-rsvp.c:rsvp_obj_print() function.

Affected Systems and Versions

Affected System: tcpdump
Affected Versions: Versions prior to 4.9.2

Exploitation Mechanism

The vulnerability can be exploited by crafting a malicious RSVP packet to trigger the buffer over-read in the affected function.

Mitigation and Prevention

Immediate Steps to Take

Update tcpdump to version 4.9.2 or later to mitigate the vulnerability.
Monitor vendor security advisories for patches and updates.

Long-Term Security Practices

Regularly update software and systems to the latest versions.
Implement network segmentation to minimize the impact of potential attacks.

Patching and Updates

Apply patches provided by the vendor promptly to address security vulnerabilities.