MediumFix available
tar — security advisory
GNU Tar through 1.34 has a one-byte out-of-bounds read that results in use of uninitialized memory for a conditional jump. Exploitation to change the flow of control has not been demonstrated. The issue occurs in from_header in list.c via a V7 archive in which mtime has approximately 11 whitespace characters.
- Products
- tar
- Affected versions
- 1.34+dfsg-1.2
- Fixed versions
- 1.34+dfsg-1.2+deb12u1, 1.34+dfsg-1.4
- CVEs
- CVE-2022-48303
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 16:22 UTC · Revision 1
Source evidence
GNU Tar through 1.34 has a one-byte out-of-bounds read that results in use of uninitialized memory for a conditional jump. Exploitation to change the flow of control has not been demonstrated. The issue occurs in from_header in list.c via a V7 archive in which mtime has approximately 11 whitespace characters.
osv:DEBIAN-CVE-2022-48303
tar
Fixed versions: 1.34+dfsg-1.2+deb12u1
tar
Fixed versions: 1.34+dfsg-1.4
tar
Fixed versions: 1.34+dfsg-1.4
Complete source record
{
"id": "f28e9f7e8da3fe0f9e182d623d544517effc573ba13544bf26b9bd030d2b4170",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-48303",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2022-48303",
"summary": "GNU Tar through 1.34 has a one-byte out-of-bounds read that results in use of uninitialized memory for a conditional jump. Exploitation to change the flow of control has not been demonstrated. The issue occurs in from_header in list.c via a V7 archive in which mtime has approximately 11 whitespace characters.",
"evidence": "osv:DEBIAN-CVE-2022-48303",
"products": [
{
"name": {
"value": "tar",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.34+dfsg-1.2+deb12u1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "1.34+dfsg-1.2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "tar",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.34+dfsg-1.4",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tar",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.34+dfsg-1.4",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2022-48303",
"aliases": [
"DEBIAN-CVE-2022-48303"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.34+dfsg-1.2+deb12u1"
}
]
}
],
"package": {
"name": "tar",
"purl": "pkg:deb/debian/tar?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.34+dfsg-1.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-48303.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.34+dfsg-1.4"
}
]
}
],
"package": {
"name": "tar",
"purl": "pkg:deb/debian/tar?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-48303.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.34+dfsg-1.4"
}
]
}
],
"package": {
"name": "tar",
"purl": "pkg:deb/debian/tar?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-48303.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
],
"modified": "2026-10-15T09:47:30.828960602Z",
"provider": "osv",
"upstream": [
"CVE-2022-48303"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2022-48303"
]
},
"related_cves": [
{
"value": "CVE-2022-48303",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 327565,
"published_at": "2023-01-30T04:15:08.03+00:00"
}