CVE-2021-3426
Publication date 20 May 2021
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access. The highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9, Python versions before 3.9.3 and Python versions before 3.10.0a7.
Mitigation
Do not expose the pydoc webserver to untrusted users.
Status
Package | Ubuntu Release | Status |
---|---|---|
python2.7 | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal |
Not affected
|
|
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Not affected
|
|
14.04 LTS trusty |
Not affected
|
|
python3.10 | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
python3.4 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty |
Fixed 3.4.3-1ubuntu1~14.04.7+esm12
|
|
python3.5 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Not in release | |
16.04 LTS xenial |
Fixed 3.5.2-2ubuntu0~16.04.13+esm2
|
|
14.04 LTS trusty |
Fixed 3.5.2-2ubuntu0~16.04.4~14.04.1+esm1
|
|
python3.6 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic |
Fixed 3.6.9-1~18.04ubuntu1.7
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
python3.7 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic |
Fixed 3.7.5-2ubuntu1~18.04.2+esm1
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
python3.8 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Not affected
|
|
18.04 LTS bionic |
Fixed 3.8.0-3ubuntu1~18.04.2+esm2
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
python3.9 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Fixed 3.9.5-3~20.04.1
|
|
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release |
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Patch details
Package | Patch details |
---|---|
python3.10 |
|
python3.6 |
|
python3.7 |
|
python3.8 |
|
python3.9 |
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.7 · Medium |
Attack vector | Adjacent |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-5342-1
- Python vulnerabilities
- 28 March 2022
- USN-5342-3
- Python vulnerability
- 23 May 2022
- USN-6891-1
- Python vulnerabilities
- 11 July 2024