CVE-2018-18607

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Se ha descubierto un problema en elf_link_input_bfd en elflink.c en la biblioteca Binary File Descriptor (BFD), también conocida como libbfd, tal y como se distribuye en GNU Binutils 2.31. Hay una desreferencia de puntero NULL en elf_link_input_bfd al emplearse para encontrar símbolos STT_TLS sin ninguna sección TLS. Un ELF especialmente manipulado permite que atacantes remotos provoquen una denegación de servicio (DoS), tal y como queda demostrado con Id.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-10-23 CVE Reserved
2018-10-23 CVE Published
2024-06-11 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (7)

URL	Tag	Source
http://www.securityfocus.com/bid/105754	Third Party Advisory
https://security.netapp.com/advisory/ntap-20190307-0003	Third Party Advisory
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=102def4da826b3d9e169741421e5e67e8731909a	X_refsource_misc

URL	Date	SRC
https://sourceware.org/bugzilla/show_bug.cgi?id=23805	2024-08-05

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html	2023-11-07
https://usn.ubuntu.com/4336-1	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnu Search vendor "Gnu"		Binutils Search vendor "Gnu" for product "Binutils"				2.31 Search vendor "Gnu" for product "Binutils" and version "2.31"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Netapp Search vendor "Netapp"		Data Ontap Search vendor "Netapp" for product "Data Ontap"				-		-		Affected