Описание
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.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | needed | |
| esm-apps/bionic | not-affected | code not present |
| esm-apps/focal | not-affected | code not present |
| esm-apps/jammy | not-affected | code not present |
| esm-apps/noble | not-affected | code not present |
| esm-apps/xenial | not-affected | code not present |
| jammy | not-affected | code not present |
| noble | not-affected | code not present |
| oracular | ignored | end of life, was needs-triage |
| plucky | ignored | end of life, was needed |
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EPSS
4.8 Medium
CVSS3
Связанные уязвимости
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.
In MbedTLS 3.3.0 before 3.6.4, mbedtls_lms_import_public_key does not ...
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.
Уязвимость функции mbedtls_lms_import_public_key() программного обеспечения Mbed TLS, позволяющая нарушителю вызвать отказ в обслуживании или раскрыть защищаемую информацию
EPSS
4.8 Medium
CVSS3