CVE-2018-18607

MEDIUM

GNU Binutils - NULL Pointer Dereference

Title source: rule

Description

An issue was discovered in elf_link_input_bfd 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 elf_link_input_bfd when used for finding STT_TLS symbols without any TLS section. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.

References (7)

[Patch] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=102def4da826b3d9e169741421e5e67e8731909a

[Mailing List] http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html

[Mailing List] http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/105754

[Third Party Advisory] https://security.netapp.com/advisory/ntap-20190307-0003/

[Exploit, Issue Tracking, Third Party Advisory] https://sourceware.org/bugzilla/show_bug.cgi?id=23805

[Vendor Advisory] https://usn.ubuntu.com/4336-1/

Scores

CVSS v3 5.5

EPSS 0.0037

EPSS Percentile 58.6%

Attack Vector LOCAL

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Classification

CWE

CWE-476

Status published

Affected Products (5)

gnu/binutils

debian/debian_linux

debian/debian_linux

debian/debian_linux

netapp/data_ontap

Timeline

Published Oct 23, 2018

Tracked Since Feb 18, 2026