CVE-2018-18607: Null Pointer Dereference
An issue was discovered in elflinkinputbfd in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. There is a NULL pointer dereference in elflinkinputbfd when used for finding STTTLS symbols without any TLS section. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2018-18607?
CVE-2018-18607 is a vulnerability in the Binary File Descriptor (BFD) library in GNU Binutils 2.31 that leads to a NULL pointer dereference.
How does CVE-2018-18607 affect me?
If you are using affected versions of binutils on Ubuntu Xenial (16.04), Ubuntu Bionic (18.04), or Debian, you may be vulnerable to this issue.
How can I fix CVE-2018-18607?
To fix CVE-2018-18607, update your binutils package to the recommended version provided by your operating system (Ubuntu or Debian).
Where can I find more information about CVE-2018-18607?
You can find more information about CVE-2018-18607 on the Sourceware bugzilla and gitweb, as well as the SecurityFocus website.
What is CWE-476?
CWE-476 is a Common Weakness Enumeration category that refers to NULL Pointer Dereference vulnerabilities.