CVE-2018-6759 : The bfd_get_debug_link_info_1 function in opncls.c in the Binary File Descriptor

The bfd_get_debug_link_info_1 function in opncls.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, has an unchecked strnlen operation. Remote attackers could leverage this vulnerability to cause a denial of service (segmentation fault) via a crafted ELF file.

Published 2018-02-06 21:29:01

Updated 2019-10-31 01:15:16

Source MITRE

View at NVD, CVE.org

Vulnerability category: Memory CorruptionInput validationDenial of service

Products affected by CVE-2018-6759

GNU » Binutils » Version: 2.30
cpe:2.3:a:gnu:binutils:2.30:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2018-6759

EPSS FAQ

0.29%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 51 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-6759

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:N/A:P	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
5.5	MEDIUM	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	1.8	3.6	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2018-6759

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-6759

http://www.securityfocus.com/bid/103030

GNU Binutils CVE-2018-6759 Remote Denial of Service Vulnerability
Third Party Advisory;VDB Entry
https://sourceware.org/bugzilla/show_bug.cgi?id=22794

22794 – Unchecked strnlen operation in bfd_get_debug_link_info_1 (./src/bfd/opncls.c)
Issue Tracking;Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html

[security-announce] openSUSE-SU-2019:2415-1: moderate: Security update f

CVEs referencing this url
https://security.gentoo.org/glsa/201811-17

Binutils: Multiple vulnerabilities (GLSA 201811-17) — Gentoo security
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html

[security-announce] openSUSE-SU-2019:2432-1: moderate: Security update f

CVEs referencing this url

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Vulnerability Details : CVE-2018-6759

Products affected by CVE-2018-6759

Exploit prediction scoring system (EPSS) score for CVE-2018-6759

CVSS scores for CVE-2018-6759

CWE ids for CVE-2018-6759

References for CVE-2018-6759