PT-2025-48517 · Julia · Mbedtls Jll

Published 2025-11-21 · Updated 2025-11-21

OSV

An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. An adversary with access to precise enough information about memory accesses (typically, an untrusted operating system attacking a secure enclave) can recover an RSA private key after observing the victim performing a single private-key operation, if the window size (MBEDTLS MPI WINDOW SIZE) used for the exponentiation is 3 or smaller.

Related Identifiers

JLSEC-2025-219

Affected Products

Mbedtls Jll

References · 6

• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BR7ZCVKLPGCOEEALUHZMFHXQHR6S4QL · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XMKJ5IMJEPXYAHHU56Z4P2FSYIEAESB · Vendor Advisory
• https://osv.dev/vulnerability/JLSEC-2025-219 · Vendor Advisory
• https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.3.0 · Note
• https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.2 · Note
• https://lists.debian.org/debian-lts-announce/2025/06/msg00034.html · Note