Bug 2453969 (CVE-2025-66442) - CVE-2025-66442 mbedtls: Mbed TLS and TF-PSA-Crypto: Information disclosure via compiler-induced timing side channel
Summary: CVE-2025-66442 mbedtls: Mbed TLS and TF-PSA-Crypto: Information disclosure vi...
Keywords:
Status: NEW
Alias: CVE-2025-66442
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2454197 2454199 2454202 2454206 2454211
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-01 20:02 UTC by OSIDB Bzimport
Modified: 2026-04-02 05:56 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-04-01 20:02:19 UTC 
In Mbed TLS through 4.0.0, there is a compiler-induced timing side channel (in RSA and CBC/ECB decryption) that only occurs with LLVM's select-optimize feature. TF-PSA-Crypto through 1.0.0 is also affected.
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