CVE-2017-8392 : Vulnerability Insights and Analysis

In GNU Binutils 2.28, a vulnerability exists in the Binary File Descriptor (BFD) library, leading to an invalid read of size 8 due to a missing check in the _bfd_dwarf2_find_nearest_line function. This flaw can cause crashes in programs using the libbfd library for binary analysis.

Understanding CVE-2017-8392

This CVE entry highlights a vulnerability in the GNU Binutils 2.28 version that affects the Binary File Descriptor (BFD) library.

What is CVE-2017-8392?

The vulnerability in the _bfd_dwarf2_find_nearest_line function of the libbfd library in GNU Binutils 2.28 results in an invalid read of size 8 due to the absence of a NULL symbols check.

The Impact of CVE-2017-8392

The vulnerability can lead to crashes in programs utilizing the libbfd library for binary program analysis, such as objdump.

Technical Details of CVE-2017-8392

This section delves into the technical aspects of the CVE-2017-8392 vulnerability.

Vulnerability Description

The vulnerability in the _bfd_dwarf2_find_nearest_line function of the libbfd library in GNU Binutils 2.28 allows for an invalid read of size 8 due to the lack of a check for NULL symbols.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: All versions of GNU Binutils 2.28

Exploitation Mechanism

The vulnerability can be exploited by crafting a specially designed binary file that triggers the invalid read in the _bfd_dwarf2_find_nearest_line function.

Mitigation and Prevention

To address CVE-2017-8392, follow these mitigation strategies:

Immediate Steps to Take

Update Binutils to a patched version.
Monitor vendor advisories for updates.

Long-Term Security Practices

Regularly update software and libraries.
Conduct security assessments and audits.

Patching and Updates

Apply patches provided by the software vendor.