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CVE-2018-18605

5.5 · MEDIUM

A heap-based buffer over-read issue was discovered in the function sec_merge_hash_lookup in merge.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31, be…

Published Oct 23, 2018CWE-125EPSS 2.32%

Overview

CVE-2018-18605 is a medium-severity vulnerability. It was published on October 23, 2018 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

A heap-based buffer over-read issue was discovered in the function sec_merge_hash_lookup in merge.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31, because _bfd_add_merge_section mishandles section merges when size is not a multiple of entsize. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.opensuse.org/opensuse-security-announce/2019-10/msg00072.htmlReflists.opensuse.org/opensuse-security-announce/2019-11/msg00008.htmlRefwww.securityfocus.com/bid/105754Refsecurity.netapp.com/advisory/ntap-20190307-0003/Refsourceware.org/bugzilla/show_bug.cgi?id=23804Refsourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=ab419ddbb2cdd17ca83618990f2cacf904ce1d61Refusn.ubuntu.com/4336-1/Reflists.opensuse.org/opensuse-security-announce/2019-10/msg00072.htmlReflists.opensuse.org/opensuse-security-announce/2019-11/msg00008.htmlRefwww.securityfocus.com/bid/105754

How CyberStrike helps

Frequently asked questions

What is CVE-2018-18605?

CVE-2018-18605 is a medium-severity vulnerability. It was published on October 23, 2018 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

How severe is CVE-2018-18605?

This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-18605?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-18605?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-18605 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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