MediumFix available
mbedtls — security advisory
A Lucky 13 timing side channel in mbedtls_ssl_decrypt_buf in library/ssl_msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length.
- Products
- mbedtls
- Affected versions
- Not specified
- Fixed versions
- 2.16.8-r0
- CVEs
- CVE-2020-16150
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:04 UTC · Revision 1
Source evidence
A Lucky 13 timing side channel in mbedtls_ssl_decrypt_buf in library/ssl_msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length.
osv:ALPINE-CVE-2020-16150
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
mbedtls
Fixed versions: 2.16.8-r0
Complete source record
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"modified": "2026-10-26T11:17:55.137127984Z",
"provider": "osv",
"upstream": [
"CVE-2020-16150"
],
"references": [
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]
},
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"evidence": "/upstream"
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"source_id": "core-osv",
"document_id": 450456,
"published_at": "2020-09-02T16:15:12.363+00:00"
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