Arm: Security Vulnerabilities
Mbed TLS before 3.6.4 has a NULL pointer dereference because mbedtls_asn1_store_named_data can trigger conflicting data with val.p of NULL but val.len greater than zero.
CVSS Score
4.0
EPSS Score
0.0
Published
2025-07-20
In MbedTLS 3.3.0 before 3.6.4, mbedtls_lms_verify may accept invalid signatures if hash computation fails and internal errors go unchecked, enabling LMS (Leighton-Micali Signature) forgery in a fault scenario. Specifically, unchecked return values in mbedtls_lms_verify allow an attacker (who can induce a hardware hash accelerator fault) to bypass LMS signature verification by reusing stale stack data, resulting in acceptance of an invalid signature. In mbedtls_lms_verify, the return values of the internal Merkle tree functions create_merkle_leaf_value and create_merkle_internal_value are not checked. These functions return an integer that indicates whether the call succeeded or not. If a failure occurs, the output buffer (Tc_candidate_root_node) may remain uninitialized, and the result of the signature verification is unpredictable. When the software implementation of SHA-256 is used, these functions will not fail. However, with hardware-accelerated hashing, an attacker could use fault injection against the accelerator to bypass verification.
CVSS Score
4.9
EPSS Score
0.0
Published
2025-07-04
In MbedTLS 3.3.0 before 3.6.4, mbedtls_lms_import_public_key does not check that the input buffer is at least 4 bytes before reading a 32-bit field, allowing a possible out-of-bounds read on truncated input. Specifically, an out-of-bounds read in mbedtls_lms_import_public_key allows context-dependent attackers to trigger a crash or limited adjacent-memory disclosure by supplying a truncated LMS (Leighton-Micali Signature) public-key buffer under four bytes. An LMS public key starts with a 4-byte type indicator. The function mbedtls_lms_import_public_key reads this type indicator before validating the size of its input.
CVSS Score
4.8
EPSS Score
0.0
Published
2025-07-04
Mbed TLS before 3.6.4 has a race condition in AESNI detection if certain compiler optimizations occur. An attacker may be able to extract an AES key from a multithreaded program, or perform a GCM forgery.
CVSS Score
7.8
EPSS Score
0.0
Published
2025-07-04
Mbed TLS before 3.6.4 has a PEM parsing one-byte heap-based buffer underflow, in mbedtls_pem_read_buffer and two mbedtls_pk_parse functions, via untrusted PEM input.
CVSS Score
4.8
EPSS Score
0.001
Published
2025-07-04
Use After Free vulnerability in Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform improper GPU memory processing operations to gain access to already freed memory.This issue affects Valhall GPU Kernel Driver: from r53p0 before r54p0; Arm 5th Gen GPU Architecture Kernel Driver: from r53p0 before r54p0.
CVSS Score
7.8
EPSS Score
0.0
Published
2025-06-02
Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to gain access to already freed memory.This issue affects Bifrost GPU Kernel Driver: from r44p0 through r49p3, from r50p0 through r51p0; Valhall GPU Kernel Driver: from r44p0 through r49p3, from r50p0 through r54p0; Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 through r49p3, from r50p0 through r54p0.
CVSS Score
7.8
EPSS Score
0.0
Published
2025-06-02
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Arm Ltd Bifrost GPU Userspace Driver, Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a non-privileged user process to perform valid GPU processing operations, including via WebGL or WebGPU, to access outside of buffer bounds.This issue affects Bifrost GPU Userspace Driver: from r18p0 through r49p3, from r50p0 through r51p0; Valhall GPU Userspace Driver: from r28p0 through r49p3, from r50p0 through r54p0; Arm 5th Gen GPU Architecture Userspace Driver: from r41p0 through r49p3, from r50p0 through r54p0.
CVSS Score
7.8
EPSS Score
0.0
Published
2025-06-02
Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU processing operations to gain access to already freed memory.This issue affects Bifrost GPU Kernel Driver: from r8p0 through r49p3, from r50p0 through r51p0; Valhall GPU Kernel Driver: from r19p0 through r49p3, from r50p0 through r53p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p3, from r50p0 through r53p0.
CVSS Score
7.8
EPSS Score
0.0
Published
2025-05-02
Use After Free vulnerability in Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform improper GPU memory processing operations to gain access to already freed memory.
This issue affects Valhall GPU Kernel Driver: from r29p0 through r49p3, from r50p0 through r53p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p3, from r50p0 through r53p0.
CVSS Score
7.8
EPSS Score
0.0
Published
2025-05-02