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Libgcrypt before 1.12.2 mishandles Dilithium signing. Writes to a static array lack a bounds check but do not use attacker-controlled data.
1 affected package
libgcrypt20
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| libgcrypt20 | Fixed | Fixed | Not affected | Not affected | Not affected |
Some fixes available 4 of 7
Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.
1 affected package
libgcrypt20
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| libgcrypt20 | Fixed | Fixed | Fixed | Needs evaluation | Needs evaluation |
Some fixes available 3 of 11
A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts.
2 affected packages
libgcrypt11, libgcrypt20
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| libgcrypt11 | Not in release | Not in release | Not in release | Not in release | — |
| libgcrypt20 | Fixed | Fixed | Fixed | Vulnerable | Vulnerable |
The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the...
1 affected package
libgcrypt20
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| libgcrypt20 | Fixed | Fixed | Fixed | Fixed | Fixed |
Some fixes available 14 of 15
Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example,...
1 affected package
libgcrypt20
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| libgcrypt20 | Fixed | Fixed | Fixed | Fixed | Fixed |
_gcry_md_block_write in cipher/hash-common.c in Libgcrypt version 1.9.0 has a heap-based buffer overflow when the digest final function sets a large count value. It is recommended to upgrade to 1.9.1 or later.
2 affected packages
libgcrypt11, libgcrypt20
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| libgcrypt11 | — | — | — | Not in release | Not in release |
| libgcrypt20 | — | — | — | Not affected | Not affected |
It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library. Version affected: 1.8.4-5, 1.7.6-2+deb9u3, and 1.6.3-2+deb8u4. Versions fixed: 1.8.5-2 and 1.6.3-2+deb8u7.
2 affected packages
libgcrypt11, libgcrypt20
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| libgcrypt11 | — | — | — | — | Not in release |
| libgcrypt20 | — | — | — | — | Fixed |
In Libgcrypt 1.8.4, the C implementation of AES is vulnerable to a flush-and-reload side-channel attack because physical addresses are available to other processes. (The C implementation is used on platforms where an...
2 affected packages
libgcrypt11, libgcrypt20
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| libgcrypt11 | — | — | Not in release | Not in release | Not in release |
| libgcrypt20 | — | — | Not affected | Not affected | Not affected |
Some fixes available 18 of 19
Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in...
6 affected packages
libgcrypt11, libgcrypt20, nss, openssl, openssl098, openssl1.0
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| libgcrypt11 | — | — | — | — | Not in release |
| libgcrypt20 | — | — | — | — | Fixed |
| nss | — | — | — | — | Fixed |
| openssl | — | — | — | — | Fixed |
| openssl098 | — | — | — | — | Not in release |
| openssl1.0 | — | — | — | — | Fixed |
cipher/elgamal.c in Libgcrypt through 1.8.2, when used to encrypt messages directly, improperly encodes plaintexts, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic...
3 affected packages
gnupg, libgcrypt11, libgcrypt20
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| gnupg | — | — | — | — | Not in release |
| libgcrypt11 | — | — | — | — | Not in release |
| libgcrypt20 | — | — | — | — | Not affected |