Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Python-Rsa Project | Python-Rsa | >= 2.1, < 4.7 |
| Redhat | Openstack Platform | 13.0 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25658Issue TrackingThird Party Advisory
- https://github.com/sybrenstuvel/python-rsa/issues/165ExploitIssue TrackingThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25658Issue TrackingThird Party Advisory
- https://github.com/sybrenstuvel/python-rsa/issues/165ExploitIssue TrackingThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2020-25658?
CVE-2020-25658 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.
How severe is CVE-2020-25658?
CVE-2020-25658 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-25658?
Check the references section above for vendor advisories and patch information. Affected products include: Python-Rsa Project Python-Rsa, Redhat Openstack Platform, Fedoraproject Fedora.