CVE-2018-7643 : Security Advisory and Response
Learn about CVE-2018-7643, an integer overflow vulnerability in GNU Binutils 2.30 that could allow remote attackers to cause a denial of service or other impacts. Find out how to mitigate and prevent this vulnerability.
An integer overflow vulnerability in GNU Binutils 2.30 could allow remote attackers to cause a denial of service or potentially achieve other impacts.
Understanding CVE-2018-7643
What is CVE-2018-7643?
The vulnerability exists in the display_debug_ranges function of dwarf.c in GNU Binutils 2.30, triggered by processing a specially crafted ELF file.
The Impact of CVE-2018-7643
The vulnerability could lead to a denial of service by crashing the application or potentially enable attackers to achieve other impacts.
Technical Details of CVE-2018-7643
Vulnerability Description
The integer overflow vulnerability in GNU Binutils 2.30 allows remote attackers to cause a denial of service or potentially have other impacts by exploiting a specially crafted ELF file.
Affected Systems and Versions
- Product: n/a
- Vendor: n/a
- Version: n/a
Exploitation Mechanism
The vulnerability is exploited by remote attackers through the display_debug_ranges function in dwarf.c when processing a maliciously crafted ELF file, as demonstrated by objdump.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor vendor advisories and security mailing lists for updates.
- Implement network security measures to prevent unauthorized access.
Long-Term Security Practices
- Regularly update software and systems to the latest versions.
- Conduct security assessments and penetration testing to identify vulnerabilities.
- Educate users and IT staff on security best practices.
Patching and Updates
- Refer to vendor advisories for patch availability and installation instructions.