CVE-2018-20651 - A NULL pointer dereference was discovered in elf_link_add_object_symbols in elflink.c in the Binary

CVE-2018-20651

Summary

A NULL pointer dereference was discovered in elf_link_add_object_symbols in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31.1. This occurs for a crafted ET_DYN with no program headers. A specially crafted ELF file allows remote attackers to cause a denial of service, as demonstrated by ld.

References

Vulnerable Configurations

cpe:2.3:a:gnu:binutils:2.31.1:*:*:*:*:*:*:*
cpe:2.3:a:gnu:binutils:2.31.1:*:*:*:*:*:*:*

CVSS

Base:	4.3 (as of 03-08-2019 - 13:15)
Impact:
Exploitability:

CWE

CWE-476

CAPEC

Access

Vector	Complexity	Authentication
NETWORK	MEDIUM	NONE

Impact

Confidentiality	Integrity	Availability
NONE	NONE	PARTIAL

cvss-vector via4

AV:N/AC:M/Au:N/C:N/I:N/A:P

refmap via4

bid	106440
confirm	https://support.f5.com/csp/article/K38336243
gentoo	GLSA-201908-01
misc	https://sourceware.org/bugzilla/show_bug.cgi?id=24041 https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=54025d5812ff100f5f0654eb7e1ffd50f2e37f5f
suse	openSUSE-SU-2019:2415 openSUSE-SU-2019:2432
ubuntu	USN-4336-1

Last major update

03-08-2019 - 13:15

Published

01-01-2019 - 16:29

Last modified

03-08-2019 - 13:15