UnratedFix available
icu — security advisory
Stack-based buffer overflow in the _canonicalize function in common/uloc.c in International Components for Unicode (ICU) before 49.1 allows remote attackers to execute arbitrary code via a crafted locale ID that is not properly handled during variant canonicalization.
- Products
- icu
- Affected versions
- Not specified
- Fixed versions
- 4.8.1.1-3
- CVEs
- CVE-2011-4599
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 23:01 UTC · Revision 1
Source evidence
Stack-based buffer overflow in the _canonicalize function in common/uloc.c in International Components for Unicode (ICU) before 49.1 allows remote attackers to execute arbitrary code via a crafted locale ID that is not properly handled during variant canonicalization.
osv:DEBIAN-CVE-2011-4599
icu
Fixed versions: 4.8.1.1-3
icu
Fixed versions: 4.8.1.1-3
icu
Fixed versions: 4.8.1.1-3
Complete source record
{
"id": "33c0ab74ac6a579940b6e9f9acd7c94cf20563115b163518a72c2d45ba77ba30",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2011-4599",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2011-4599",
"summary": "Stack-based buffer overflow in the _canonicalize function in common/uloc.c in International Components for Unicode (ICU) before 49.1 allows remote attackers to execute arbitrary code via a crafted locale ID that is not properly handled during variant canonicalization.",
"evidence": "osv:DEBIAN-CVE-2011-4599",
"products": [
{
"name": {
"value": "icu",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.8.1.1-3",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "icu",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.8.1.1-3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "icu",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.8.1.1-3",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2011-4599",
"aliases": [
"DEBIAN-CVE-2011-4599"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.8.1.1-3"
}
]
}
],
"package": {
"name": "icu",
"purl": "pkg:deb/debian/icu?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-4599.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.8.1.1-3"
}
]
}
],
"package": {
"name": "icu",
"purl": "pkg:deb/debian/icu?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-4599.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.8.1.1-3"
}
]
}
],
"package": {
"name": "icu",
"purl": "pkg:deb/debian/icu?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-4599.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T17:47:32.883705676Z",
"provider": "osv",
"upstream": [
"CVE-2011-4599"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2011-4599"
]
},
"related_cves": [
{
"value": "CVE-2011-4599",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 417553,
"published_at": "2012-06-21T15:55:11.067+00:00"
}