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Some fixes available 4 of 5
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...
1 affected package
python-cryptography
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| python-cryptography | Not affected | Not affected | Fixed | Fixed | Fixed |
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.
1 affected package
python-cryptography
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| python-cryptography | — | — | — | Not affected | Not affected |
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.
1 affected package
python-cryptography
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| python-cryptography | — | — | — | Fixed | Fixed |
Some fixes available 1 of 2
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...
1 affected package
python-cryptography
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| python-cryptography | — | — | — | — | Fixed |
Some fixes available 5 of 6
lib/Crypto/PublicKey/ElGamal.py in PyCrypto through 2.6.1 generates weak ElGamal key parameters, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face...
2 affected packages
pycryptodome, python-crypto
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| pycryptodome | — | — | — | — | Fixed |
| python-crypto | — | — | — | — | Fixed |
Some fixes available 3 of 4
Heap-based buffer overflow in the ALGnew function in block_templace.c in Python Cryptography Toolkit (aka pycrypto) allows remote attackers to execute arbitrary code as demonstrated by a crafted iv parameter to cryptmsg.py.
1 affected package
python-crypto
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| python-crypto | — | — | — | — | — |
HKDF in cryptography before 1.5.2 returns an empty byte-string if used with a length less than algorithm.digest_size.
1 affected package
python-cryptography
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| python-cryptography | — | — | — | — | — |
The Crypto.Random.atfork function in PyCrypto before 2.6.1 does not properly reseed the pseudo-random number generator (PRNG) before allowing a child process to access it, which makes it easier for context-dependent attackers to...
1 affected package
python-crypto
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| python-crypto | — | — | — | Not affected | Not affected |
The NIST SP 800-90A default statement of the Dual Elliptic Curve Deterministic Random Bit Generation (Dual_EC_DRBG) algorithm contains point Q constants with a possible relationship to certain "skeleton key" values, which might...
10 affected packages
bouncycastle, gnutls26, gnutls28, libgcrypt11, mbedtls...
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| bouncycastle | — | — | — | — | Not affected |
| gnutls26 | — | — | — | — | Not in release |
| gnutls28 | — | — | — | — | Not affected |
| libgcrypt11 | — | — | — | — | Not in release |
| mbedtls | — | — | — | — | Not affected |
| nss | — | — | — | — | Not affected |
| openssl | — | — | — | — | Not affected |
| openssl098 | — | — | — | — | Not in release |
| polarssl | — | — | — | — | Not in release |
| python-crypto | — | — | — | — | Not affected |
Some fixes available 4 of 5
PyCrypto before 2.6 does not produce appropriate prime numbers when using an ElGamal scheme to generate a key, which reduces the signature space or public key space and makes it easier for attackers to conduct brute force attacks...
1 affected package
python-crypto
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| python-crypto | — | — | — | — | — |