CVE-2020-25659

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 73%
Affected Products (NVD)
VendorProductVersion
cryptography.iocryptography
3.2
oraclecommunications_cloud_native_core_network_function_cloud_native_environment
1.10.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
python-cryptography
bookworm
38.0.4-3
fixed
bookworm (security)
38.0.4-3~deb12u1
fixed
bullseye
3.3.2-1
fixed
bullseye (security)
3.3.2-1+deb11u1
fixed
buster
no-dsa
sid
43.0.0-1
fixed
stretch
no-dsa
trixie
43.0.0-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
python-cryptography
bionic
Fixed 2.1.4-1ubuntu1.4
released
focal
Fixed 2.8-3ubuntu0.1
released
groovy
Fixed 3.0-1ubuntu0.1
released
trusty
dne
xenial
Fixed 1.2.3-1ubuntu0.3
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
python-cryptography
suse enterprise sap 12 SP2
2.1.4-7.31.1
fixed
suse enterprise sap 12 SP3
2.1.4-7.31.1
fixed
suse enterprise sap 12 SP4
2.1.4-7.31.1
fixed
suse enterprise sap 12 SP5
2.1.4-7.31.1
fixed
suse enterprise server 12 SP2
2.1.4-7.31.1
fixed
suse enterprise server 12 SP3
2.1.4-7.31.1
fixed
suse enterprise server 12 SP4
2.1.4-7.31.1
fixed
suse enterprise server 12 SP5
2.1.4-7.31.1
fixed
python2-cryptography
suse enterprise sap 15 SP1
3.3.2-150100.7.15.3
fixed
suse enterprise server 15 SP1
3.3.2-150100.7.15.3
fixed
suse enterprise server 15 SP2
3.3.2-150200.16.1
fixed
python2-cryptography-vectors
suse enterprise sap 15 SP1
3.3.2-150100.3.11.3
fixed
suse enterprise server 15 SP1
3.3.2-150100.3.11.3
fixed
python3-cryptography
suse enterprise sap 12 SP2
2.1.4-7.31.1
fixed
suse enterprise sap 12 SP3
2.1.4-7.31.1
fixed
suse enterprise sap 12 SP4
2.1.4-7.31.1
fixed
suse enterprise sap 12 SP5
2.1.4-7.31.1
fixed
suse enterprise sap 15 SP1
3.3.2-150100.7.15.3
fixed
suse enterprise server 12 SP2
2.1.4-7.31.1
fixed
suse enterprise server 12 SP3
2.1.4-7.31.1
fixed
suse enterprise server 12 SP4
2.1.4-7.31.1
fixed
suse enterprise server 12 SP5
2.1.4-7.31.1
fixed
suse enterprise server 15 SP1
3.3.2-150100.7.15.3
fixed
suse enterprise server 15 SP2
3.3.2-150200.16.1
fixed
suse enterprise server 15 SP4
3.3.2-150400.16.3.1
fixed
python3-cryptography-vectors
suse enterprise sap 15 SP1
3.3.2-150100.3.11.3
fixed
suse enterprise server 15 SP1
3.3.2-150100.3.11.3
fixed
suse enterprise server 15 SP4
3.3.2-150100.3.11.3
fixed
python36-cryptography
suse enterprise server 12 SP3
2.8-6.3.17
fixed
Common Weakness Enumeration
References
https://github.com/pyca/cryptography/pull/5507/commits/ce1bef6f1ee06ac497ca0c837fbd1c7ef6c2472b
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpujul2022.html
https://github.com/pyca/cryptography/pull/5507/commits/ce1bef6f1ee06ac497ca0c837fbd1c7ef6c2472b
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpujul2022.html