CVE-2018-17360 : What You Need to Know
Learn about CVE-2018-17360, a heap-based buffer over-read vulnerability in GNU Binutils version 2.31. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability was found in the libbfd library, also known as the Binary File Descriptor, as included in GNU Binutils version 2.31. This vulnerability involves a heap-based buffer over-read in a function called bfd_getl32 within the libbfd.c file. An attacker can exploit this vulnerability by using a specially crafted PE file, which may result in a denial of service. The objdump executable can act as a trigger for this vulnerability.
Understanding CVE-2018-17360
This CVE entry describes a specific vulnerability in the libbfd library of GNU Binutils version 2.31.
What is CVE-2018-17360?
CVE-2018-17360 is a heap-based buffer over-read vulnerability in the libbfd library of GNU Binutils version 2.31. It allows an attacker to cause a denial of service by exploiting a function called bfd_getl32 with a crafted PE file.
The Impact of CVE-2018-17360
The vulnerability can be exploited by an attacker using a specially crafted PE file, potentially leading to a denial of service condition. The objdump executable can be used as a trigger for this vulnerability.
Technical Details of CVE-2018-17360
This section provides more technical details about the CVE.
Vulnerability Description
The vulnerability involves a heap-based buffer over-read in the bfd_getl32 function within the libbfd.c file.
Affected Systems and Versions
- Affected System: GNU Binutils version 2.31
- Affected Versions: All versions of GNU Binutils 2.31
Exploitation Mechanism
The vulnerability can be exploited by using a specially crafted PE file, with the objdump executable acting as a trigger.
Mitigation and Prevention
Protecting systems from CVE-2018-17360 requires immediate action and long-term security practices.
Immediate Steps to Take
- Apply patches provided by the vendor to address the vulnerability.
- Monitor vendor advisories and security mailing lists for updates.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Implement strong file validation mechanisms to detect malicious files.
Patching and Updates
- Ensure timely application of security patches released by GNU Binutils.