CVE-2017-11112 : Vulnerability Insights and Analysis

CVE-2017-11112, related to ncurses 6.0, involves a vulnerability in the append_acs function that could lead to a remote denial of service attack.

Understanding CVE-2017-11112

This CVE entry highlights a critical issue in the ncurses library that could be exploited for a denial of service attack.

What is CVE-2017-11112?

The append_acs function in tinfo/parse_entry.c of ncurses 6.0 attempts to access a specific memory address, potentially leading to a denial of service if untrusted data is processed.

The Impact of CVE-2017-11112

The vulnerability could allow malicious actors to exploit the terminfo library code, resulting in a remote denial of service attack.

Technical Details of CVE-2017-11112

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

In ncurses 6.0, the append_acs function in tinfo/parse_entry.c attempts to access a specific memory address, which could be abused for a denial of service attack.

Affected Systems and Versions

Affected Systems: Not specified
Affected Versions: ncurses 6.0

Exploitation Mechanism

The vulnerability arises when the terminfo library code processes untrusted terminfo data, allowing attackers to trigger a denial of service.

Mitigation and Prevention

Protecting systems from CVE-2017-11112 requires immediate actions and long-term security measures.

Immediate Steps to Take

Apply vendor patches promptly to mitigate the vulnerability.
Monitor for any unusual system behavior that could indicate exploitation.

Long-Term Security Practices

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

Patching and Updates

Stay informed about security advisories and updates from the software vendor.
Ensure timely application of patches to address vulnerabilities and enhance system security.