Medium severity · published Jan 1, 2019
CVE-2018-20651
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…
5.5
CVSS
2.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Binutils · Gnu
2.31.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-20651
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-20651
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html
Third Party Advisory
http://www.securityfocus.com/bid/106440
security.gentoo.org
https://security.gentoo.org/glsa/201908-01
Exploit
https://sourceware.org/bugzilla/show_bug.cgi?id=24041
sourceware.org
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=54025d5812ff100f5f0654eb7e1ffd50f2e37f5f
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