mbedtls — security advisory
In Trusted Firmware Mbed TLS 2.24.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.
- Products
- mbedtls
- Affected versions
- Not specified
- Fixed versions
- 2.16.11-0.1
- CVEs
- CVE-2021-24119
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:02 UTC · Revision 1
Source evidence
In Trusted Firmware Mbed TLS 2.24.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.
osv:DEBIAN-CVE-2021-24119
mbedtls
Fixed versions: 2.16.11-0.1
mbedtls
Fixed versions: 2.16.11-0.1
mbedtls
Fixed versions: 2.16.11-0.1
Complete source record
{
"id": "0856533ee15aa03060a230d4657f9fdf92cadb6c9e0b895de51700492e0d151a",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-24119",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2021-24119",
"summary": "In Trusted Firmware Mbed TLS 2.24.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.",
"evidence": "osv:DEBIAN-CVE-2021-24119",
"products": [
{
"name": {
"value": "mbedtls",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.16.11-0.1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "mbedtls",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
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"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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},
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],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2021-24119",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
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},
{
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],
"package": {
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"purl": "pkg:deb/debian/mbedtls?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-24119.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
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},
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],
"package": {
"name": "mbedtls",
"purl": "pkg:deb/debian/mbedtls?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-24119.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
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{
"fixed": "2.16.11-0.1"
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],
"package": {
"name": "mbedtls",
"purl": "pkg:deb/debian/mbedtls?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-24119.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:02:52.052814595Z",
"provider": "osv",
"upstream": [
"CVE-2021-24119"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2021-24119"
]
},
"related_cves": [
{
"value": "CVE-2021-24119",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 419744,
"published_at": "2021-07-14T13:15:08.1+00:00"
}