Medium
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-6759
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:38 UTC · Revision 1
Source evidence
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.
osv:CVE-2018-6759
Complete source record
{
"id": "0efcd0d72ecbd64311f402a4c0fe3d99e7efd67f92bb0ae838c641d22263d057",
"url": "https://osv.dev/vulnerability/CVE-2018-6759",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-6759",
"summary": "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.",
"evidence": "osv:CVE-2018-6759",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2018-6759",
"aliases": [
"CVE-2018-6759"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://sourceware.org/git/binutils-gdb.git",
"type": "GIT",
"events": [
{
"introduced": "8db5daf9efe8a6174d3b10ac7bba8c178836e9ce"
},
{
"last_affected": "8db5daf9efe8a6174d3b10ac7bba8c178836e9ce"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:gnu:binutils:2.30:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.30"
},
{
"last_affected": "2.30"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"2.30",
"binutils-2_30"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-6759.json"
}
}
],
"modified": "2026-10-24T10:30:31.627817586Z",
"provider": "osv",
"references": [
"https://security.gentoo.org/glsa/201811-17",
"https://sourceware.org/bugzilla/show_bug.cgi?id=22794"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2018-6759",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 432848,
"published_at": "2018-02-06T21:29:00.52+00:00"
}