CVE-2019-7150 : What You Need to Know

A problem has been found in elfutils version 0.175 where a segmentation fault can occur, leading to denial-of-service. This issue has been demonstrated in eu-stack.

Understanding CVE-2019-7150

This CVE involves a vulnerability in elfutils version 0.175 that can result in a program crash due to improper verification of dyn data from a core file.

What is CVE-2019-7150?

The vulnerability is located in the function elf64_xlatetom in libelf/elf32_xlatetom.c
It is caused by dwfl_segment_report_module not properly verifying if the dyn data read from a core file is truncated
An intentionally manipulated input can lead to a program crash, causing denial-of-service

The Impact of CVE-2019-7150

Affects elfutils version 0.175
Can result in a segmentation fault and denial-of-service situation

Technical Details of CVE-2019-7150

This section provides more in-depth technical details about the vulnerability.

Vulnerability Description

The issue occurs in elfutils version 0.175
Specifically in the function elf64_xlatetom in libelf/elf32_xlatetom.c
Caused by dwfl_segment_report_module not properly verifying truncated dyn data

Affected Systems and Versions

Product: elfutils
Vendor: N/A
Version: 0.175

Exploitation Mechanism

Crafted input can trigger a segmentation fault
Demonstrated in eu-stack

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Update elfutils to a patched version
Monitor for any unusual program crashes

Long-Term Security Practices

Regularly update software to the latest versions
Implement proper input validation mechanisms

Patching and Updates

Apply security updates provided by the vendor
Stay informed about security advisories related to elfutils