Vulnerability in Python-Rsa Project
CVE-2020-25658
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.017 (76.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Python-Rsa Project
- Sybren A. Stüvel Python-Rsa — versions after 3.0 (inclusive)
- Fedoraproject Fedora — versions 33, 34, 35
- Red Hat OpenStack Platform — versions 13.0, 16.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- github.com/sybrenstuvel/python-rsa/issues/165 (Exploit, Third Party Advisory, Issue Tracking)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2020-25658?
- CVE-2020-25658 is a high-severity vulnerability in Python-Rsa Project, classified under CWE-385. CVSS score: 7.5/10. Published 2020-11-12.
- How severe is CVE-2020-25658?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-25658 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.