High
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
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-6543
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:26 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:CVE-2018-6543
Complete source record
{
"id": "e7ce4defee7e23da32dd15a3ed4c89c68b2138d88765079ae5acb33b6189cd56",
"url": "https://osv.dev/vulnerability/CVE-2018-6543",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "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:CVE-2018-6543",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2018-6543",
"aliases": [
"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": [
{
"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-2018-6543.json"
}
}
],
"modified": "2026-10-24T10:30:39.449691997Z",
"provider": "osv",
"references": [
"https://security.gentoo.org/glsa/201811-17",
"https://sourceware.org/bugzilla/show_bug.cgi?id=22769"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2018-6543",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 434669,
"published_at": "2018-02-02T09:29:00.647+00:00"
}