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CVE-2018-18606

Date: October 23, 2018

An issue was discovered in the merge_strings function in merge.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. There is a NULL pointer dereference in _bfd_add_merge_section when attempting to merge sections with large alignments. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.

Language: C

Severity Score

Related Resources (12)

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=45a0eaf77022963d639d6d19871dbab7b79703fc
https://nvd.nist.gov/vuln/detail/CVE-2018-18606
https://usn.ubuntu.com/4336-1/
https://access.redhat.com/security/cve/CVE-2018-18606
http://www.securityfocus.com/bid/105754
https://sourceware.org/bugzilla/show_bug.cgi?id=23806
https://security.netapp.com/advisory/ntap-20190307-0003/
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-18606
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html
https://security-tracker.debian.org/tracker/CVE-2018-18606
https://www.mend.io/vulnerability-database/CVE-2018-18606

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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