Vulnerabilites related to Mbed - mbedtls
CVE-2025-52496 (GCVE-0-2025-52496)
Vulnerability from cvelistv5
Published
2025-07-04 00:00
Modified
2025-07-08 14:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-733 - Compiler Optimization Removal or Modification of Security-critical Code
Summary
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.
References
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CVE-2025-52497 (GCVE-0-2025-52497)
Vulnerability from cvelistv5
Published
2025-07-04 00:00
Modified
2025-07-08 14:36
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-193 - Off-by-one Error
Summary
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.
References
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CVE-2025-27810 (GCVE-0-2025-27810)
Vulnerability from cvelistv5
Published
2025-03-25 00:00
Modified
2025-03-25 14:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-908 - Use of Uninitialized Resource
Summary
Mbed TLS before 2.28.10 and 3.x before 3.6.3, in some cases of failed memory allocation or hardware errors, uses uninitialized stack memory to compose the TLS Finished message, potentially leading to authentication bypasses such as replays.
References
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CVE-2025-47917 (GCVE-0-2025-47917)
Vulnerability from cvelistv5
Published
2025-07-20 00:00
Modified
2025-07-22 14:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
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 mbedtls_x509_string_to_names() takes a head argument that is documented as an output argument. The documentation does not suggest that the function will free that pointer; however, the function does call mbedtls_asn1_free_named_data_list() on that argument, which performs a deep free(). As a result, application code that uses this function (relying only on documented behavior) is likely to still hold pointers to the memory blocks that were freed, resulting in a high risk of use-after-free or double-free. In particular, the two sample programs x509/cert_write and x509/cert_req are affected (use-after-free if the san string contains more than one DN).
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CVE-2025-49600 (GCVE-0-2025-49600)
Vulnerability from cvelistv5
Published
2025-07-04 00:00
Modified
2025-07-08 14:36
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-325 - Missing Cryptographic Step
Summary
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.
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CVE-2025-49087 (GCVE-0-2025-49087)
Vulnerability from cvelistv5
Published
2025-07-20 00:00
Modified
2025-07-21 20:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-385 - Covert Timing Channel
Summary
In Mbed TLS 3.6.1 through 3.6.3 before 3.6.4, a timing discrepancy in block cipher padding removal allows an attacker to recover the plaintext when PKCS#7 padding mode is used.
References
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CVE-2025-49601 (GCVE-0-2025-49601)
Vulnerability from cvelistv5
Published
2025-07-04 00:00
Modified
2025-07-08 14:36
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
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.
References
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CVE-2025-48965 (GCVE-0-2025-48965)
Vulnerability from cvelistv5
Published
2025-07-20 00:00
Modified
2025-07-23 15:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-696 - Incorrect Behavior Order
Summary
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.
References
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CVE-2025-27809 (GCVE-0-2025-27809)
Vulnerability from cvelistv5
Published
2025-03-25 00:00
Modified
2025-03-25 16:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1188 - Initialization of a Resource with an Insecure Default
Summary
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 mbedtls_ssl_set_hostname.
References
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