Cloud Defense Logo

Products

Solutions

Company

CVE-2017-18248 : Security Advisory and Response

Learn about CVE-2017-18248, a vulnerability in CUPS before version 2.2.6 enabling remote attackers to crash the system by submitting print jobs with an invalid username.

CUPS before version 2.2.6 is vulnerable to remote attacks due to a flaw in the add_job function when D-Bus support is enabled. Attackers can cause a crash by submitting print jobs with an invalid username.

Understanding CVE-2017-18248

If D-Bus support is enabled, the add_job function in scheduler/ipp.c of CUPS prior to version 2.2.6 may be vulnerable to remote attackers. By submitting print jobs with an invalid username, attackers can cause a crash due to a D-Bus notification.

What is CVE-2017-18248?

The vulnerability in CUPS allows remote attackers to crash the system by sending print jobs with an invalid username, exploiting the D-Bus notification.

The Impact of CVE-2017-18248

This vulnerability can be exploited by malicious actors to cause a denial of service (DoS) by crashing the CUPS service, disrupting printing capabilities.

Technical Details of CVE-2017-18248

CUPS before version 2.2.6 is susceptible to a remote attack due to a flaw in the add_job function when D-Bus support is enabled.

Vulnerability Description

The add_job function in scheduler/ipp.c of CUPS before 2.2.6, when D-Bus support is enabled, can be crashed by remote attackers by sending print jobs with an invalid username, related to a D-Bus notification.

Affected Systems and Versions

        Product: n/a
        Vendor: n/a
        Version: n/a

Exploitation Mechanism

Attackers exploit the vulnerability by submitting print jobs with an invalid username, triggering a crash through a D-Bus notification.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2017-18248.

Immediate Steps to Take

        Disable D-Bus support if not essential for system functionality.
        Apply the security update to CUPS version 2.2.6 or later to mitigate the vulnerability.

Long-Term Security Practices

        Regularly update CUPS and other software components to patch known vulnerabilities.
        Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

        Update CUPS to version 2.2.6 or above to eliminate the vulnerability and enhance system security.

Popular CVEs

CVE Id

Published Date

Is your System Free of Underlying Vulnerabilities?
Find Out Now