Debian Python-Cryptography vulnerabilities

CVE-2020-36242 [CRITICAL] CVE-2020-36242: python-cryptography - In the cryptography package before 3.3.2 for Python, certain sequences of update... In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class. Scope: local bookworm: resolved (fixed in 3.3.2-1) bullseye: resolved (fixed in 3.3.2-1) forky: resolved (fixed in 3.3.2-1) sid: r

CVE-2026-39892 [MEDIUM] CVE-2026-39892: python-cryptography - cryptography is a package designed to expose cryptographic primitives and recipe... cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 45.0.0 to before 46.0.7, if a non-contiguous buffer was passed to APIs which accepted Python buffers (e.g. Hash.update()), this could lead to buffer overflows. This vulnerability is fixed in 46.0.7. Scope: local bookworm: resolved bullseye: reso

CVE-2018-10903 [HIGH] CVE-2018-10903: python-cryptography - A flaw was found in python-cryptography versions between >=1.9.0 and <2.3. The f... A flaw was found in python-cryptography versions between >=1.9.0 and <2.3. The finalize_with_tag API did not enforce a minimum tag length. If a user did not validate the input length prior to passing it to finalize_with_tag an attacker could craft an invalid payload with a shortened tag (e.g. 1 byte) such that they would have a 1 in 256 chance of passing

CVE-2023-50782 [HIGH] CVE-2023-50782: python-cryptography - A flaw was found in the python-cryptography package. This issue may allow a remo... A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data. Scope: local bookworm: open bullseye: open forky: resolved (fixed in 42.0.5-1) sid: resolved (fixed in 42.0.5-1) trixie: resolved

CVE-2016-9243 [HIGH] CVE-2016-9243: python-cryptography - HKDF in cryptography before 1.5.2 returns an empty byte-string if used with a le... HKDF in cryptography before 1.5.2 returns an empty byte-string if used with a length less than algorithm.digest_size. Scope: local bookworm: resolved (fixed in 1.5.3-1) bullseye: resolved (fixed in 1.5.3-1) forky: resolved (fixed in 1.5.3-1) sid: resolved (fixed in 1.5.3-1) trixie: resolved (fixed in 1.5.3-1)

CVE-2024-26130 [HIGH] CVE-2024-26130: python-cryptography - cryptography is a package designed to expose cryptographic primitives and recipe... cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Starting in version 38.0.0 and prior to version 42.0.4, if `pkcs12.serialize_key_and_certificates` is called with both a certificate whose public key did not match the provided private key and an `encryption_algorithm` with `hmac_hash` set (via `Privat

CVE-2026-26007 [HIGH] CVE-2026-26007: python-cryptography - cryptography is a package designed to expose cryptographic primitives and recipe... cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 46.0.5, the public_key_from_numbers (or EllipticCurvePublicNumbers.public_key()), EllipticCurvePublicNumbers.public_key(), load_der_public_key() and load_pem_public_key() functions do not verify that the point belongs to the expected prime-ord

CVE-2023-49083 [MEDIUM] CVE-2023-49083: python-cryptography - cryptography is a package designed to expose cryptographic primitives and recipe... cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Calling `load_pem_pkcs7_certificates` or `load_der_pkcs7_certificates` could lead to a NULL-pointer dereference and segfault. Exploitation of this vulnerability poses a serious risk of Denial of Service (DoS) for any application attempting to deseria

CVE-2023-23931 [MEDIUM] CVE-2023-23931: python-cryptography - cryptography is a package designed to expose cryptographic primitives and recipe... cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions `Cipher.update_into` would accept Python objects which implement the buffer protocol, but provide only immutable buffers. This would allow immutable objects (such as `bytes`) to be mutated, thus violating fundamental rules of Pyt

CVE-2020-25659 [MEDIUM] CVE-2020-25659: python-cryptography - python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RS... python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext. Scope: local bookworm: resolved (fixed in 3.2.1-1) bullseye: resolved (fixed in 3.2.1-1) forky: resolved (fixed in 3.2.1-1) sid: resolved (fixed in 3.2.1-1) trixie: resolved (fixed in 3.2.1-1)

CVE-2026-34073 [LOW] CVE-2026-34073: python-cryptography - cryptography is a package designed to expose cryptographic primitives and recipe... cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to version 46.0.6, DNS name constraints were only validated against SANs within child certificates, and not the "peer name" presented during each validation. Consequently, cryptography would allow a peer named bar.example.com to validate against a