OESA-2021-1401

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1401
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2021-1401.json
JSON Data
https://api.test.osv.dev/v1/vulns/OESA-2021-1401
Upstream
Published
2021-10-19T11:03:18Z
Modified
2025-08-12T05:09:26.292721Z
Summary
python3 security update
Details

Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C++ (or other languages, depending on the chosen implementation). Python is also usable as an extension language for applications written in other languages that need easy-to-use scripting or automation interfaces.

Security Fix(es):

A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.(CVE-2021-3737)

There s a flaw in urllib s AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.(CVE-2021-3733)

Database specific 
{
    "severity": "Medium"
}
References

Affected packages

openEuler:20.03-LTS-SP1 / python3

Package

Name
python3
Purl
pkg:rpm/openEuler/python3&distro=openEuler-20.03-LTS-SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.7.9-15.oe1

Ecosystem specific 

{
    "src": [
        "python3-3.7.9-15.oe1.src.rpm"
    ],
    "x86_64": [
        "python3-3.7.9-15.oe1.x86_64.rpm",
        "python3-devel-3.7.9-15.oe1.x86_64.rpm",
        "python3-debug-3.7.9-15.oe1.x86_64.rpm",
        "python3-debugsource-3.7.9-15.oe1.x86_64.rpm",
        "python3-debuginfo-3.7.9-15.oe1.x86_64.rpm"
    ],
    "aarch64": [
        "python3-3.7.9-15.oe1.aarch64.rpm",
        "python3-devel-3.7.9-15.oe1.aarch64.rpm",
        "python3-debug-3.7.9-15.oe1.aarch64.rpm",
        "python3-debugsource-3.7.9-15.oe1.aarch64.rpm",
        "python3-debuginfo-3.7.9-15.oe1.aarch64.rpm"
    ],
    "noarch": [
        "python3-help-3.7.9-15.oe1.noarch.rpm"
    ]
}

openEuler:20.03-LTS-SP2 / python3

Package

Name
python3
Purl
pkg:rpm/openEuler/python3&distro=openEuler-20.03-LTS-SP2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.7.9-16.oe1

Ecosystem specific 

{
    "src": [
        "python3-3.7.9-16.oe1.src.rpm"
    ],
    "x86_64": [
        "python3-3.7.9-16.oe1.x86_64.rpm",
        "python3-devel-3.7.9-16.oe1.x86_64.rpm",
        "python3-debug-3.7.9-16.oe1.x86_64.rpm",
        "python3-debugsource-3.7.9-16.oe1.x86_64.rpm",
        "python3-debuginfo-3.7.9-16.oe1.x86_64.rpm"
    ],
    "aarch64": [
        "python3-3.7.9-16.oe1.aarch64.rpm",
        "python3-devel-3.7.9-16.oe1.aarch64.rpm",
        "python3-debug-3.7.9-16.oe1.aarch64.rpm",
        "python3-debugsource-3.7.9-16.oe1.aarch64.rpm",
        "python3-debuginfo-3.7.9-16.oe1.aarch64.rpm"
    ],
    "noarch": [
        "python3-help-3.7.9-16.oe1.noarch.rpm"
    ]
}