NULL pointer dereference in Binutils - CVE-2018-20651

 

NULL pointer dereference in Binutils - CVE-2018-20651

Published: January 4, 2019


Vulnerability identifier: #VU16809
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-20651
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: GNU
Affected software:
Binutils

Detailed vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in elf_link_add_object_symbols in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd). A remote attacker can supply a specially crafted ELF file and perform a denial of service (DoS) attack.


How to mitigate CVE-2018-20651

Install update from vendor's website.

Sources