HighFix available
firefox-esr, thunderbird — security advisory
Memory safety bugs present in Firefox 111 and Firefox ESR 102.9. 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 Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.
- Products
- firefox-esr, thunderbird
- Affected versions
- Not specified
- Fixed versions
- 102.10.0esr-1, 1:102.10.0-1
- CVEs
- CVE-2023-29550
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 09:55 UTC · Revision 1
Source evidence
Memory safety bugs present in Firefox 111 and Firefox ESR 102.9. 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 Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.
osv:DEBIAN-CVE-2023-29550
firefox-esr
Fixed versions: 102.10.0esr-1
firefox-esr
Fixed versions: 102.10.0esr-1
firefox-esr
Fixed versions: 102.10.0esr-1
thunderbird
Fixed versions: 1:102.10.0-1
thunderbird
Fixed versions: 1:102.10.0-1
thunderbird
Fixed versions: 1:102.10.0-1
Complete source record
{
"id": "bd8a4094c1c0374441a308359f7e97f48002ce97b7d7317e889be665004bb510",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-29550",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-29550",
"summary": "Memory safety bugs present in Firefox 111 and Firefox ESR 102.9. 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 Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.",
"evidence": "osv:DEBIAN-CVE-2023-29550",
"products": [
{
"name": {
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"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
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"fixed_versions": [
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{
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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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"evidence": "/affected/5/ranges"
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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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"events": [
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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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"ecosystem": "Debian:13"
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"package": {
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"ecosystem": "Debian:14"
},
"database_specific": {
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"package": {
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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-2023-29550.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-2023-29550.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-25T09:47:36.622428046Z",
"provider": "osv",
"upstream": [
"CVE-2023-29550"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-29550"
]
},
"related_cves": [
{
"value": "CVE-2023-29550",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 445309,
"published_at": "2023-06-02T17:15:12.967+00:00"
}