CVE-2020-25658
Published: 12 November 2020
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.
Notes
Author | Note |
---|---|
eslerm | upstream fix is a mitigation at best dev states that a non-Python is likely needed for fix and "Python-RSA is a pure-Python RSA implementation." |
Priority
Status
Package | Release | Status |
---|---|---|
python-rsa Launchpad, Ubuntu, Debian |
hirsute |
Ignored
(end of life)
|
bionic |
Ignored
(will not be fixed upstream)
|
|
focal |
Ignored
(will not be fixed upstream)
|
|
jammy |
Ignored
(will not be fixed upstream)
|
|
trusty |
Ignored
(will not be fixed upstream)
|
|
upstream |
Ignored
(will not be fixed upstream)
|
|
kinetic |
Ignored
(end of life, was ignored [will not be fixed upstream])
|
|
xenial |
Ignored
(will not be fixed upstream)
|
|
impish |
Ignored
(end of life)
|
|
groovy |
Ignored
(end of life)
|
|
lunar |
Ignored
(end of life, was ignored [will not be fixed upstream])
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.9 |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |