UbuntuUSN-5199-1Python vulnerabilities
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 High
AI Score
Confidence
High
7.1 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
0.016 Low
EPSS
Percentile
87.0%
Releases
- Ubuntu 18.04 ESM
Packages
- python3.6 - An interactive high-level object-oriented language
Details
It was discovered that the urllib.request.AbstractBasicAuthHandler class
in Python contains regex with a quadratic worst-case time complexity.
Specially crafted traffic from a malicious HTTP server could cause a regular
expression denial of service (ReDoS) condition for a client.
(CVE-2021-3733)
It was discovered that the Python urllib http client could enter into an infinite
loop when incorrectly handling certain server responses (100 Continue response).
Specially crafted traffic from a malicious HTTP server could cause a denial of
service (DoS) condition for a client.
(CVE-2021-3737)
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Ubuntu | 18.04 | noarch | libpython3.6-stdlib | < 3.6.9-1~18.04ubuntu1.6 | UNKNOWN |
| Ubuntu | 18.04 | noarch | idle-python3.6 | < 3.6.9-1~18.04ubuntu1.6 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libpython3.6 | < 3.6.9-1~18.04ubuntu1.6 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libpython3.6-dbg | < 3.6.9-1~18.04ubuntu1.6 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libpython3.6-dev | < 3.6.9-1~18.04ubuntu1.6 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libpython3.6-minimal | < 3.6.9-1~18.04ubuntu1.6 | UNKNOWN |
| Ubuntu | 18.04 | noarch | libpython3.6-testsuite | < 3.6.9-1~18.04ubuntu1.6 | UNKNOWN |
| Ubuntu | 18.04 | noarch | python3.6 | < 3.6.9-1~18.04ubuntu1.6 | UNKNOWN |
| Ubuntu | 18.04 | noarch | python3.6-dbg | < 3.6.9-1~18.04ubuntu1.6 | UNKNOWN |
| Ubuntu | 18.04 | noarch | python3.6-dev | < 3.6.9-1~18.04ubuntu1.6 | UNKNOWN |
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 High
AI Score
Confidence
High
7.1 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
0.016 Low
EPSS
Percentile
87.0%