CVE-2018-11504 : Exploit Details and Defense Strategies

CVE-2018-11504 was published on May 26, 2018, and affects the islist function within markdown.c in DISCOUNT 2.2.3a. This vulnerability can be exploited by remote attackers to trigger a denial of service.

Understanding CVE-2018-11504

This CVE entry describes a specific vulnerability in the DISCOUNT library that can lead to a denial of service attack.

What is CVE-2018-11504?

The islist function within markdown.c in libmarkdown.a in DISCOUNT 2.2.3a allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted file, as demonstrated by mkd2html.

The Impact of CVE-2018-11504

The vulnerability can be exploited by remote attackers to trigger a denial of service, potentially disrupting the availability of the affected system.

Technical Details of CVE-2018-11504

This section provides more technical insights into the vulnerability.

Vulnerability Description

The islist function within markdown.c in libmarkdown.a in DISCOUNT 2.2.3a can be exploited by remote attackers to trigger a denial of service through a crafted file, as exemplified by mkd2html.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability can be exploited remotely by attackers through a crafted file, leading to a denial of service.

Mitigation and Prevention

Protecting systems from CVE-2018-11504 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Monitor for any unusual system behavior that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities.
Implement network security measures to detect and block malicious traffic.

Patching and Updates

Stay informed about security updates and advisories from the vendor.
Apply patches and updates as soon as they are available to mitigate the risk of exploitation.