CVE catalog
CVE-2020-25658
python-rsa: CVE-2020-25658
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.65% · Oct 25, 2026
It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | python-rsa | sid | 4.9-4 | vulnerable |
| Debian | python-rsa | forky | 4.9-4 | vulnerable |
| Debian | python-rsa | trixie | 4.9-2 | vulnerable |
| Debian | python-rsa | bookworm | 4.8-1 | vulnerable |
| PyPI | rsa | Not reported | 4.7 | fixed |
| Suse | python-rsa | linux enterprise module for public cloud 12 | 3.1.4-12.19.2 | fixed |
| Suse | python-rsa | linux enterprise micro 5.3 | 3.4.2-150000.3.7.1 | fixed |
| Suse | python-rsa | linux enterprise module for basesystem 15 sp3 | 3.4.2-150000.3.7.1 | fixed |
| Suse | python-rsa | linux enterprise module for basesystem 15 sp4 | 3.4.2-150000.3.7.1 | fixed |
| Suse | python-rsa | linux enterprise module for package hub 15 sp3 | 3.4.2-150000.3.7.1 | fixed |
| Suse | python-rsa | linux enterprise module for package hub 15 sp4 | 3.4.2-150000.3.7.1 | fixed |
| Suse | python-rsa | linux enterprise micro 5.2 | 3.4.2-150000.3.7.1 | fixed |
| Opensuse | python-rsa | leap micro 5.2 | 3.4.2-150000.3.7.1 | fixed |
| Opensuse | python-rsa | leap 15.3 | 3.4.2-150000.3.7.1 | fixed |
| Opensuse | python-rsa | leap 15.4 | 3.4.2-150000.3.7.1 | fixed |
| Ubuntu | python-rsa | pro | 4.0-2 | vulnerable |
| Ubuntu | python-rsa | pro | 4.0-3 | vulnerable |
| Ubuntu | python-rsa | pro | 4.0-3ubuntu0.1~esm1 | vulnerable |
| Ubuntu | python-rsa | 22.04 | 4.0-4 | vulnerable |
| Ubuntu | python-rsa | 22.04 | 4.7.2-1 | vulnerable |
| Ubuntu | python-rsa | 22.04 | 4.8-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | python-rsa | source | sid | (unfixed) | unimportant | Not reported | [974685] |
| Debian | python-rsa | source | forky | (unfixed) | unimportant | Not reported | [974685] |
| Debian | python-rsa | source | trixie | (unfixed) | unimportant | Not reported | [974685] |
| Debian | python-rsa | source | bookworm | (unfixed) | unimportant | Not reported | [974685] |
| PyPI | rsa | PyPI | Not reported | 4.7 | Not reported | Not reported | Not reported |
| Suse | python-rsa | rpm | linux enterprise module for public cloud 12 | 3.1.4-12.19.2 | Not reported | SUSE-SU-2023:0648-1 | Not reported |
| Suse | python-rsa | rpm | linux enterprise micro 5.3 | 3.4.2-150000.3.7.1 | Not reported | SUSE-SU-2022:3932-1 | Not reported |
| Suse | python-rsa | rpm | linux enterprise module for basesystem 15 sp3 | 3.4.2-150000.3.7.1 | Not reported | SUSE-SU-2022:3932-1 | Not reported |
| Suse | python-rsa | rpm | linux enterprise module for basesystem 15 sp4 | 3.4.2-150000.3.7.1 | Not reported | SUSE-SU-2022:3932-1 | Not reported |
| Suse | python-rsa | rpm | linux enterprise module for package hub 15 sp3 | 3.4.2-150000.3.7.1 | Not reported | SUSE-SU-2022:3932-1 | Not reported |
| Suse | python-rsa | rpm | linux enterprise module for package hub 15 sp4 | 3.4.2-150000.3.7.1 | Not reported | SUSE-SU-2022:3932-1 | Not reported |
| Suse | python-rsa | rpm | linux enterprise micro 5.2 | 3.4.2-150000.3.7.1 | Not reported | SUSE-SU-2022:3932-1 | Not reported |
| Opensuse | python-rsa | rpm | leap micro 5.2 | 3.4.2-150000.3.7.1 | Not reported | SUSE-SU-2022:3932-1 | Not reported |
| Opensuse | python-rsa | rpm | leap 15.3 | 3.4.2-150000.3.7.1 | Not reported | SUSE-SU-2022:3932-1 | Not reported |
| Opensuse | python-rsa | rpm | leap 15.4 | 3.4.2-150000.3.7.1 | Not reported | SUSE-SU-2022:3932-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-rsa]Affected
Source package: [python-rsa]
Details (2)
4.8-1· all · bookwormAffected
dsa · python-rsa · debian · bookworm; dsa · python-rsa · debian · 12
4.8-1· all · bookwormAffected
dsa · python-rsa · debian · bookworm; dsa · python-rsa · debian · 12
[Debian 13 (Trixie)]
- [python3-rsa]Affected
Source package: [python-rsa]
Details (2)
4.9-2· all · trixieAffected
dsa · python-rsa · debian · 13
4.9-2· all · trixieAffected
dsa · python-rsa · debian · 13
Observed:
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-455250.json]
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2022_3932-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2020-25658]
- [https://osv.dev/vulnerability/GHSA-xrx6-fmxq-rjj2]
- [https://osv.dev/vulnerability/PYSEC-2020-100]
- [https://osv.dev/vulnerability/SUSE-SU-2022:3932-1]
- [https://osv.dev/vulnerability/SUSE-SU-2023:0648-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2020-25658]
- [https://security-tracker.debian.org/tracker/CVE-2020-25658]
- [https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-25658.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-0794.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]