CVE-2020-25658

Advisory

Rsa 4.7 includes a fix for 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.

Affected package

Affected versions

Fixed versions

Vulnerability changelog

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. See CVE-2020-25658.


CONFIRM:https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25658: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25658
MISC:https://github.com/sybrenstuvel/python-rsa/issues/165: https://github.com/sybrenstuvel/python-rsa/issues/165

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25658
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25658
• https://github.com/sybrenstuvel/python-rsa/issues/165
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APF364QJ2IYLPDNVFBOEJ24QP2WLVLJP/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2SAF67KDGSOHLVFTRDOHNEAFDRSSYIWA/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QY4PJWTYSOV7ZEYZVMYIF6XRU73CY6O7/