Null pointer dereference in elfutils - CVE-2018-18520
Published: October 25, 2018
Vulnerability identifier: #VU15528
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:P/U:Clear
CVE-ID: CVE-2018-18520
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Sourceware
Affected software:
elfutils
elfutils
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to due to improper handling of Executable and Linkable Format (ELF) files by the elf_end function, as defined in the size.c source code file. A remote attacker can trick the victim into opening a specially crafted ELF file that submits malicious input, trigger NULL pointer dereference and cause application to crash.
How to mitigate CVE-2018-18520
Install updates from vendor's website.