HighFix available
firefox-esr, thunderbird — security advisory
Mozilla developers and community members reported memory safety bugs present in Firefox ESR 60.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 60.3 and Thunderbird < 60.3.
- Products
- firefox-esr, thunderbird
- Affected versions
- Not specified
- Fixed versions
- 1:60.3.0-1, 60.3.0esr-1
- CVEs
- CVE-2018-12389
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:06 UTC · Revision 1
Source evidence
Mozilla developers and community members reported memory safety bugs present in Firefox ESR 60.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 60.3 and Thunderbird < 60.3.
osv:DEBIAN-CVE-2018-12389
firefox-esr
Fixed versions: 60.3.0esr-1
firefox-esr
Fixed versions: 60.3.0esr-1
firefox-esr
Fixed versions: 60.3.0esr-1
thunderbird
Fixed versions: 1:60.3.0-1
thunderbird
Fixed versions: 1:60.3.0-1
thunderbird
Fixed versions: 1:60.3.0-1
Complete source record
{
"id": "5b3f5f7292f39101c221a18a553ebd4ac92929c499fecd70319d27b7e4448915",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-12389",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2018-12389",
"summary": "Mozilla developers and community members reported memory safety bugs present in Firefox ESR 60.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 60.3 and Thunderbird < 60.3.",
"evidence": "osv:DEBIAN-CVE-2018-12389",
"products": [
{
"name": {
"value": "firefox-esr",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "60.3.0esr-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "firefox-esr",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "60.3.0esr-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "60.3.0esr-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
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},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"affected_versions": []
},
{
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],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2018-12389",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
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{
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"events": [
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{
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],
"package": {
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"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-2018-12389.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
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"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12389.json"
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"ecosystem_specific": {
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{
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],
"package": {
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"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-2018-12389.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
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{
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"package": {
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"ecosystem": "Debian:12"
},
"database_specific": {
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},
"ecosystem_specific": {
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}
},
{
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],
"package": {
"name": "thunderbird",
"purl": "pkg:deb/debian/thunderbird?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12389.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "1:60.3.0-1"
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]
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],
"package": {
"name": "thunderbird",
"purl": "pkg:deb/debian/thunderbird?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12389.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:02:58.771010119Z",
"provider": "osv",
"upstream": [
"CVE-2018-12389"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2018-12389"
]
},
"related_cves": [
{
"value": "CVE-2018-12389",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 419989,
"published_at": "2019-02-28T18:29:00.32+00:00"
}