HighFix available
openssh — security advisory
A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.
- Products
- openssh
- Affected versions
- 1:9.2p1-2, 1:9.2p1-2+deb12u1, 1:9.2p1-2+deb12u2
- Fixed versions
- 1:9.2p1-2+deb12u3, 1:9.7p1-7
- CVEs
- CVE-2024-6387
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 16:20 UTC · Revision 1
Source evidence
A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.
osv:DEBIAN-CVE-2024-6387
openssh
Fixed versions: 1:9.2p1-2+deb12u3
openssh
Fixed versions: 1:9.7p1-7
openssh
Fixed versions: 1:9.7p1-7
Complete source record
{
"id": "727402b256950847310e508ed918bf291122380fa2fb3b7bb8ffdc8af0cf51d7",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2024-6387",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2024-6387",
"summary": "A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.",
"evidence": "osv:DEBIAN-CVE-2024-6387",
"products": [
{
"name": {
"value": "openssh",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.2p1-2+deb12u3",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "1:9.2p1-2",
"evidence": "/affected/0/versions"
},
{
"value": "1:9.2p1-2+deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "1:9.2p1-2+deb12u2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "openssh",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.7p1-7",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openssh",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.7p1-7",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2024-6387",
"aliases": [
"DEBIAN-CVE-2024-6387"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.2p1-2+deb12u3"
}
]
}
],
"package": {
"name": "openssh",
"purl": "pkg:deb/debian/openssh?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1:9.2p1-2",
"1:9.2p1-2+deb12u1",
"1:9.2p1-2+deb12u2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-6387.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.7p1-7"
}
]
}
],
"package": {
"name": "openssh",
"purl": "pkg:deb/debian/openssh?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-6387.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.7p1-7"
}
]
}
],
"package": {
"name": "openssh",
"purl": "pkg:deb/debian/openssh?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-6387.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-15T09:47:30.250301196Z",
"provider": "osv",
"upstream": [
"CVE-2024-6387"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2024-6387"
]
},
"related_cves": [
{
"value": "CVE-2024-6387",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 327537,
"published_at": "2024-07-01T13:15:06.467+00:00"
}