CVE-2018-6485 : What You Need to Know

The GNU C Library version 2.26 and earlier may encounter an integer overflow issue in the posix_memalign and memalign functions, potentially leading to heap corruption.

Understanding CVE-2018-6485

This CVE involves an integer overflow vulnerability in the GNU C Library.

What is CVE-2018-6485?

An integer overflow in the implementation of the posix_memalign and memalign functions in the GNU C Library could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.

The Impact of CVE-2018-6485

The vulnerability could allow attackers to exploit the affected functions, resulting in heap corruption and potentially leading to security breaches or system crashes.

Technical Details of CVE-2018-6485

This section provides more technical insights into the CVE.

Vulnerability Description

The issue arises from an integer overflow in the implementation of certain functions in the GNU C Library, potentially causing the functions to return pointers to insufficiently sized heap areas.

Affected Systems and Versions

The GNU C Library version 2.26 and earlier are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the affected functions to return pointers to inadequately sized heap areas, leading to potential heap corruption.

Mitigation and Prevention

Protecting systems from CVE-2018-6485 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches provided by the vendor to address the vulnerability.
Monitor security advisories for updates and apply them promptly.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Implement secure coding practices to prevent integer overflow vulnerabilities.

Patching and Updates

Refer to vendor-specific advisories for patching instructions and updates.