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openSUSE-SU-2026:21294-1

Опубликовано: 10 июл. 2026
Источник: suse-cvrf

Описание

Security update for python-cryptography

This update for python-cryptography fixes the following issues

  • CVE-2026-41676: openssl: Deriver:derive and PkeyCtxRef:derive can overflow short buffers on OpenSSL 1.1.1 (bsc#1270208).
  • CVE-2026-41677: openssl: out-of-bounds read in PEM password callback when returning an oversized length (bsc#1270620).
  • CVE-2026-41678: openssl: out-of-bounds write due to incorrect bounds assertion in aes::unwrap_key() (bsc#1270706).
  • CVE-2026-41681: openssl: MdCtxRef::digest_final() writes past caller buffer with no length check (bsc#1270772).
  • CVE-2026-41898: openssl: unchecked callback-returned length in PSK and cookie generate trampolines can leak adjacent memory to the network (bsc#1270801).
  • CVE-2026-42327: openssl: undefined behavior in X509Ref::ocsp_responders for certificates with non-UTF-8 OCSP URLs (bsc#1270515).
  • CVE-2026-44662: openssl: heap buffer overflow when encrypting with AES key-wrap-with-padding due to incorrectly sized output buffers (bsc#1270936).
  • CVE-2026-45784: openssl: out-of-bounds write in CipherCtxRef::cipher_update_inplace for AES-KW-PAD ciphers due to incorrectly sized output buffer (bsc#1270994).

Список пакетов

openSUSE Leap 16.0
python313-cryptography-44.0.3-160000.4.1

Ссылки

Описание

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.27 to before 0.10.78, Deriver::derive (and PkeyCtxRef::derive) sets len = buf.len() and passes it as the in/out length to EVP_PKEY_derive, relying on OpenSSL to honor it. On OpenSSL 1.1.x, X25519, X448, DH and HKDF-extract ignore the incoming *keylen, unconditionally writing the full shared secret (32/56/prime-size bytes). A caller passing a short slice gets a heap/stack overflow from safe code. OpenSSL 3.x providers do check, so this only impacts older OpenSSL. This vulnerability is fixed in 0.10.78.

Затронутые продукты
openSUSE Leap 16.0:python313-cryptography-44.0.3-160000.4.1
Ссылки

Описание

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.0 to before 0.10.78, the *_from_pem_callback APIs did not validate the length returned by the user's callback. A password callback that returns a value larger than the buffer it was given can cause some versions of OpenSSL to over-read this buffer. OpenSSL 3.x is not affected by this. This vulnerability is fixed in 0.10.78.

Затронутые продукты
openSUSE Leap 16.0:python313-cryptography-44.0.3-160000.4.1
Ссылки

Описание

rust-openssl provides OpenSSL bindings for the Rust programming language. From to before 0.10.78, aes::unwrap_key() contains an incorrect assertion: it checks that out.len() + 8 <= in_.len(), but this condition is reversed. The intended invariant is out.len() >= in_.len() - 8, ensuring the output buffer is large enough. Because of the inverted check, the function only accepts buffers at or below the minimum required size and rejects larger ones. If a smaller buffer is provided the function will write past the end of out by in_.len() - 8 - out.len() bytes, causing an out-of-bounds write from a safe public function. This vulnerability is fixed in 0.10.78.

Затронутые продукты
openSUSE Leap 16.0:python313-cryptography-44.0.3-160000.4.1
Ссылки

Описание

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.39 to before 0.10.78, EVP_DigestFinal() always writes EVP_MD_CTX_size(ctx) to the out buffer. If out is smaller than that, MdCtxRef::digest_final() writes past its end, usually corrupting the stack. This is reachable from safe Rust. This vulnerability is fixed in 0.10.78.

Затронутые продукты
openSUSE Leap 16.0:python313-cryptography-44.0.3-160000.4.1
Ссылки

Описание

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.24 to before 0.10.78, the FFI trampolines behind SslContextBuilder::set_psk_client_callback, set_psk_server_callback, set_cookie_generate_cb, and set_stateless_cookie_generate_cb forwarded the user closure's returned usize directly to OpenSSL without checking it against the &mut [u8] that was handed to the closure. This can lead to buffer overflows and other unintended consequences. This vulnerability is fixed in 0.10.78.

Затронутые продукты
openSUSE Leap 16.0:python313-cryptography-44.0.3-160000.4.1
Ссылки

Описание

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocsp_responders returns OCSP responder URLs from a certificate's AIA extension as OpensslString, whose Deref<Target = str> wraps the raw bytes with str::from_utf8_unchecked. OpenSSL does not enforce that the underlying IA5String is ASCII, so a certificate with non-UTF-8 bytes in its OCSP accessLocation causes safe Rust code to construct a &str that violates the UTF-8 invariant - resulting in undefined behavior. This vulnerability is fixed in 0.10.79.

Затронутые продукты
openSUSE Leap 16.0:python313-cryptography-44.0.3-160000.4.1
Ссылки

Описание

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.0 to before 0.10.79, CipherCtxRef::cipher_update, CipherCtxRef::cipher_update_vec, and symm::Crypter::update incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers (EVP_aes_{128,192,256}_wrap_pad). For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller's buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced. This only impacts users using AES key-wrap-with-padding ciphers. This vulnerability is fixed in 0.10.79.

Затронутые продукты
openSUSE Leap 16.0:python313-cryptography-44.0.3-160000.4.1
Ссылки

Описание

unknown

Затронутые продукты
openSUSE Leap 16.0:python313-cryptography-44.0.3-160000.4.1
Ссылки