HighFix available
firefox-esr, thunderbird — security advisory
Members the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103, Firefox ESR 102.1, and Firefox ESR 91.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 102.2, Thunderbird < 91.13, Firefox ESR < 91.13, Firefox ESR < 102.2, and Firefox < 104.
- Products
- firefox-esr, thunderbird
- Affected versions
- Not specified
- Fixed versions
- 102.2.0esr-1, 1:102.2.0-1
- CVEs
- CVE-2022-38478
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 14:46 UTC · Revision 1
Source evidence
Members the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103, Firefox ESR 102.1, and Firefox ESR 91.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 102.2, Thunderbird < 91.13, Firefox ESR < 91.13, Firefox ESR < 102.2, and Firefox < 104.
osv:DEBIAN-CVE-2022-38478
firefox-esr
Fixed versions: 102.2.0esr-1
firefox-esr
Fixed versions: 102.2.0esr-1
firefox-esr
Fixed versions: 102.2.0esr-1
thunderbird
Fixed versions: 1:102.2.0-1
thunderbird
Fixed versions: 1:102.2.0-1
thunderbird
Fixed versions: 1:102.2.0-1
Complete source record
{
"id": "dde6906256866eb490ba286516f5271a0963916113eb0eb49c201357eb44e434",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-38478",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2022-38478",
"summary": "Members the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103, Firefox ESR 102.1, and Firefox ESR 91.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 102.2, Thunderbird < 91.13, Firefox ESR < 91.13, Firefox ESR < 102.2, and Firefox < 104.",
"evidence": "osv:DEBIAN-CVE-2022-38478",
"products": [
{
"name": {
"value": "firefox-esr",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "102.2.0esr-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
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},
"prerequisites": [],
"fixed_versions": [
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},
{
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},
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"affected_versions": []
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{
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{
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"affected_versions": []
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{
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"affected_versions": []
}
],
"severity": "high",
"structured": {
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"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
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],
"package": {
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"purl": "pkg:deb/debian/firefox-esr?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
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"database_specific": {
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"ecosystem_specific": {
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{
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"ecosystem": "Debian:13"
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{
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"package": {
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"ecosystem": "Debian:14"
},
"database_specific": {
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"package": {
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"ecosystem": "Debian:12"
},
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},
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}
},
{
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"package": {
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"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-38478.json"
},
"ecosystem_specific": {
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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-2022-38478.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-15T08:02:04.609292883Z",
"provider": "osv",
"upstream": [
"CVE-2022-38478"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2022-38478"
]
},
"related_cves": [
{
"value": "CVE-2022-38478",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 323250,
"published_at": "2022-12-22T20:15:37.587+00:00"
}