HighFix available
binutils — security advisory
In GNU Binutils 2.30, there's an integer overflow in the function load_specific_debug_section() in objdump.c, which results in `malloc()` with 0 size. A crafted ELF file allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.
- Products
- binutils
- Affected versions
- Not specified
- Fixed versions
- 2.30-r2, 2.30-r6
- CVEs
- CVE-2018-6543
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:16 UTC · Revision 1
Source evidence
In GNU Binutils 2.30, there's an integer overflow in the function load_specific_debug_section() in objdump.c, which results in `malloc()` with 0 size. A crafted ELF file allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.
osv:ALPINE-CVE-2018-6543
binutils
Fixed versions: 2.30-r2
binutils
Fixed versions: 2.30-r6
Complete source record
{
"id": "204e1c82b177aa1d4b681b803f729a0e731c85ad27984745cd5b228662643390",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2018-6543",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALPINE-CVE-2018-6543",
"summary": "In GNU Binutils 2.30, there's an integer overflow in the function load_specific_debug_section() in objdump.c, which results in `malloc()` with 0 size. A crafted ELF file allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.",
"evidence": "osv:ALPINE-CVE-2018-6543",
"products": [
{
"name": {
"value": "binutils",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.30-r2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "binutils",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.30-r6",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "ALPINE-CVE-2018-6543",
"aliases": [
"ALPINE-CVE-2018-6543"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.30-r2"
}
]
}
],
"package": {
"name": "binutils",
"purl": "pkg:apk/alpine/binutils?arch=source",
"ecosystem": "Alpine:v3.7"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6543.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.30-r6"
}
]
}
],
"package": {
"name": "binutils",
"purl": "pkg:apk/alpine/binutils?arch=source",
"ecosystem": "Alpine:v3.8"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6543.json"
},
"ecosystem_specific": {}
}
],
"modified": "2026-10-23T17:24:47.948178140Z",
"provider": "osv",
"upstream": [
"CVE-2018-6543"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2018-6543"
]
},
"related_cves": [
{
"value": "CVE-2018-6543",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 416147,
"published_at": "2018-02-02T09:29:00.647+00:00"
}