UnratedFix available
firefox-esr — security advisory
The js_dtoa function in Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 overwrites memory instead of exiting when the floating point precision is reduced, which allows remote attackers to cause a denial of service via any plugins that reduce the precision.
- Products
- firefox-esr
- Affected versions
- Not specified
- Fixed versions
- 45.0esr-1
- CVEs
- CVE-2006-6499
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 20:08 UTC · Revision 1
Source evidence
The js_dtoa function in Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 overwrites memory instead of exiting when the floating point precision is reduced, which allows remote attackers to cause a denial of service via any plugins that reduce the precision.
osv:DEBIAN-CVE-2006-6499
firefox-esr
Fixed versions: 45.0esr-1
firefox-esr
Fixed versions: 45.0esr-1
firefox-esr
Fixed versions: 45.0esr-1
Complete source record
{
"id": "1c97a3e8413401f5280392e1b73a2d22a7a7b3eda71fb94310f4fbec517b37e9",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2006-6499",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2006-6499",
"summary": "The js_dtoa function in Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 overwrites memory instead of exiting when the floating point precision is reduced, which allows remote attackers to cause a denial of service via any plugins that reduce the precision.",
"evidence": "osv:DEBIAN-CVE-2006-6499",
"products": [
{
"name": {
"value": "firefox-esr",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "45.0esr-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "firefox-esr",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "45.0esr-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "firefox-esr",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "45.0esr-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2006-6499",
"aliases": [
"DEBIAN-CVE-2006-6499"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "45.0esr-1"
}
]
}
],
"package": {
"name": "firefox-esr",
"purl": "pkg:deb/debian/firefox-esr?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-6499.json"
},
"ecosystem_specific": {
"urgency": "high"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "45.0esr-1"
}
]
}
],
"package": {
"name": "firefox-esr",
"purl": "pkg:deb/debian/firefox-esr?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-6499.json"
},
"ecosystem_specific": {
"urgency": "high"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "45.0esr-1"
}
]
}
],
"package": {
"name": "firefox-esr",
"purl": "pkg:deb/debian/firefox-esr?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-6499.json"
},
"ecosystem_specific": {
"urgency": "high"
}
}
],
"modified": "2026-10-22T23:47:18.768334465Z",
"provider": "osv",
"upstream": [
"CVE-2006-6499"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2006-6499"
]
},
"related_cves": [
{
"value": "CVE-2006-6499",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 410174,
"published_at": "2006-12-20T01:28:00+00:00"
}