CVE-2018-7568 : Security Advisory and Response
Discover the impact of CVE-2018-7568, an integer overflow vulnerability in the Binary File Descriptor (BFD) library of GNU Binutils 2.30, allowing remote attackers to trigger an application crash. Learn about mitigation steps and preventive measures.
An integer overflow and application crash vulnerability in the Binary File Descriptor (BFD) library (libbfd) of GNU Binutils 2.30 can be triggered by corrupt dwarf1 debug information in an ELF file. This vulnerability, identified as CVE-2018-7568, was published on February 28, 2018.
Understanding CVE-2018-7568
This section provides insights into the nature and impact of the CVE-2018-7568 vulnerability.
What is CVE-2018-7568?
The vulnerability in the parse_die function of dwarf1.c in the BFD library allows remote attackers to cause a denial of service through an integer overflow and application crash by exploiting corrupt dwarf1 debug information in an ELF file. The exploit can be demonstrated using the nm command.
The Impact of CVE-2018-7568
The vulnerability poses a risk of remote exploitation leading to a denial of service (DoS) condition due to an integer overflow and application crash. Attackers can potentially exploit this issue remotely.
Technical Details of CVE-2018-7568
This section delves into the technical aspects of the CVE-2018-7568 vulnerability.
Vulnerability Description
The parse_die function in dwarf1.c in the BFD library of GNU Binutils 2.30 is susceptible to a remote DoS attack via an ELF file containing corrupt dwarf1 debug information.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: Affected version not specified
Exploitation Mechanism
The vulnerability can be exploited remotely by manipulating dwarf1 debug information in an ELF file, triggering an integer overflow and application crash.
Mitigation and Prevention
Learn how to mitigate and prevent the CVE-2018-7568 vulnerability.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor vendor advisories for updates and follow best security practices.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Implement network security measures to prevent remote exploitation.
Patching and Updates
- Refer to vendor-specific security advisories for patch availability and installation instructions.