| Name | CVE-2020-25659 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | ELA-1215-1 |
| Debian Bugs | 973247 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| python-cryptography (PTS) | jessie | 0.6.1-1+deb8u1 | vulnerable |
| stretch | 1.7.1-3+deb9u2 | vulnerable |
| buster, buster (lts) | 2.6.1-3+deb10u5 | fixed |
| buster (security) | 2.6.1-3+deb10u4 | vulnerable |
| bullseye | 3.3.2-1 | fixed |
| bullseye (security) | 3.3.2-1+deb11u1 | fixed |
| bookworm | 38.0.4-3+deb12u1 | fixed |
| bookworm (security) | 38.0.4-3~deb12u1 | fixed |
| sid, trixie | 43.0.0-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[buster] - python-cryptography <no-dsa> (Minor issue)
[stretch] - python-cryptography <no-dsa> (Minor issue; risk of regression & marginal benefit)
https://github.com/pyca/cryptography/security/advisories/GHSA-hggm-jpg3-v476
https://bugzilla.redhat.com/show_bug.cgi?id=1889988
https://github.com/pyca/cryptography/commit/58494b41d6ecb0f56b7c5f05d5f5e3ca0320d494 (3.2)
[jessie] - python-cryptography <no-dsa> (Minor issue; risk of regression & marginal benefit)