Security Bulletin: This Power System update is being released to address CVE-2025-49087

Summary Mbed-TLS is used by partition firmware for Linux secure boot. This update is being released to mitigate any potential impacts to Linux partitions with secure boot enabled. Vulnerability Details CVEID:CVE-2025-49087 DESCRIPTION: In Mbed TLS 3.6.1 through 3.6.3 before 3.6.4, a timing...

Astra Linux – Vulnerability in mbedtls

In Mbed TLS versions prior to 2.28.10, and 3.x versions prior to 3.6.3, on the client side, servers with trusted certificates for arbitrary hostnames are accepted, unless the TLS client application calls mbedtlssslsethostname...

Astra Linux – Vulnerability in mbedtls

In Mbed TLS versions prior to 2.28.10 and 3.x before 3.6.3, in some cases of failed memory allocation or hardware errors, uninitialized stack memory was used to construct the TLS Finished message. This could potentially lead to authentication bypasses, such as replay attacks...

CVE-2023-43615

Mbed TLS 2.x before 2.28.5 and 3.x before 3.5.0 has a Buffer Overflow...

JLSEC-2025-223 An issue was discovered in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2

An issue was discovered in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2. There was a timing side channel in RSA private operations. This side channel could be sufficient for a local attacker to recover the plaintext. It requires the attacker to send a large number of messages for decryption, a...

JLSEC-2025-222 Mbed TLS 2.x before 2.28.5 and 3.x before 3.5.0 has a Buffer Overflow.

Mbed TLS 2.x before 2.28.5 and 3.x before 3.5.0 has a Buffer Overflow...

JLSEC-2025-227 Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted...

Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for arbitrary hostnames unless the TLS client application calls mbedtlssslsethostname...

JLSEC-2025-226 An issue was discovered in Mbed TLS before 2.28.9 and 3.x before 3.6.1, in which the user-selected...

An issue was discovered in Mbed TLS before 2.28.9 and 3.x before 3.6.1, in which the user-selected algorithm is not used. Unlike previously documented, enabling MBEDTLSPSAHMACDRBGMDTYPE does not cause the PSA subsystem to use HMACDRBG: it uses HMACDRBG only when MBEDTLSPSACRYPTOEXTERNALRNG and...

JLSEC-2025-215 In Mbed TLS before 2.28.0 and 3.x before 3.1.0, `psa_cipher_generate_iv` and `psa_cipher_encrypt`...

In Mbed TLS before 2.28.0 and 3.x before 3.1.0, psaciphergenerateiv and psacipherencrypt allow policy bypass or oracle-based decryption when the output buffer is at memory locations accessible to an untrusted application...

JLSEC-2025-214 Mbed TLS before 3.0.1 has a double free in certain out-of-memory conditions, as demonstrated by an...

Mbed TLS before 3.0.1 has a double free in certain out-of-memory conditions, as demonstrated by an mbedtlssslsetsession failure...

JLSEC-2025-199 The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1...

The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks...

JLSEC-2025-220 An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0

An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. There is a potential heap-based buffer overflow and heap-based buffer over-read in DTLS if MBEDTLSSSLDTLSCONNECTIONID is enabled and MBEDTLSSSLCIDINLENMAX 2 MBEDTLSSSLCIDOUTLENMAX...

JLSEC-2025-231 Mbed TLS before 3.6.4 allows a use-after-free in certain situations of applications that are...

Mbed TLS before 3.6.4 allows a use-after-free in certain situations of applications that are developed in accordance with the documentation. The function mbedtlsx509stringtonames takes a head argument that is documented as an output argument. The documentation does not suggest that the function...

JLSEC-2025-208 An issue was discovered in Arm Mbed TLS before 2.24.0

An issue was discovered in Arm Mbed TLS before 2.24.0. It incorrectly uses a revocationDate check when deciding whether to honor certificate revocation via a CRL. In some situations, an attacker can exploit this by changing the local clock...

JLSEC-2025-201 An issue was discovered in Arm Mbed TLS before 2.16.6 and 2.7.x before 2.7.15

An issue was discovered in Arm Mbed TLS before 2.16.6 and 2.7.x before 2.7.15. An attacker that can get precise enough side-channel measurements can recover the long-term ECDSA private key by 1 reconstructing the projective coordinate of the result of scalar multiplication by exploiting side...

JLSEC-2025-229 Mbed TLS before 3.6.4 has a PEM parsing one-byte heap-based buffer underflow, in...

Mbed TLS before 3.6.4 has a PEM parsing one-byte heap-based buffer underflow, in mbedtlspemreadbuffer and two mbedtlspkparse functions, via untrusted PEM input...

JLSEC-2025-218 An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0

An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0. In some configurations, an unauthenticated attacker can send an invalid ClientHello message to a DTLS server that causes a heap-based buffer over-read of up to 255 bytes. This can cause a server crash or possibly information...

JLSEC-2025-206 An issue was discovered in Arm Mbed TLS before 2.23.0

An issue was discovered in Arm Mbed TLS before 2.23.0. A remote attacker can recover plaintext because a certain Lucky 13 countermeasure doesn't properly consider the case of a hardware accelerator...

JLSEC-2025-212 An issue was discovered in Mbed TLS before 2.24.0

An issue was discovered in Mbed TLS before 2.24.0. The verification of X.509 certificates when matching the expected common name the cn argument of mbedtlsx509crtverify with the actual certificate name is mishandled: when the subjecAltName extension is present, the expected name is compared to an...

JLSEC-2025-211 An issue was discovered in Mbed TLS before 2.24.0 (and before 2.16.8 LTS and before 2.7.17 LTS)

An issue was discovered in Mbed TLS before 2.24.0 and before 2.16.8 LTS and before 2.7.17 LTS. There is missing zeroization of plaintext buffers in mbedtlssslread to erase unused application data from memory...