RHEL 8:python27: 2.7 (RHSA-2022: 1821)

high Nessus 插件 ID 161026

简介

远程 Red Hat 主机缺少一个或多个安全更新。

描述

远程 Redhat Enterprise Linux 8 主机上安装的多个程序包受到 RHSA-2022: 1821 公告。

- python:urllib:AbstractBasicAuthHandler 中的正则表达式 DoS (CVE-2021-3733)

- 在 python 中发现一个缺陷。python 的 HTTP 客户端代码中存在未正确处理的 HTTP 响应,因此可能允许控制 HTTP 服务器的远程攻击者使客户端脚本进入无限循环,从而消耗 CPU 时间。此漏洞最大的威胁在于系统可用性。(CVE-2021-3737)

- python:ftplib 不应使用 PASV 响应中的主机 (CVE-2021-4189)

- python-lxml:HTML Cleaner 允许通过构建的脚本和 SVG 嵌入式脚本 (CVE-2021-43818)

- python:urllib.parse 不会审查包含 ASCII 换行符和制表符的 URL (CVE-2022-0391)

请注意,Nessus 尚未测试这些问题,而是只依据应用程序自我报告的版本号进行判断。

解决方案

更新受影响的程序包。

另见

http://www.nessus.org/u?9341665d

http://www.nessus.org/u?be9e5197

https://access.redhat.com/security/updates/classification/#moderate

https://access.redhat.com/errata/RHSA-2022:1821

https://bugzilla.redhat.com/show_bug.cgi?id=1995162

https://bugzilla.redhat.com/show_bug.cgi?id=1995234

https://bugzilla.redhat.com/show_bug.cgi?id=2006792

https://bugzilla.redhat.com/show_bug.cgi?id=2032569

https://bugzilla.redhat.com/show_bug.cgi?id=2036020

https://bugzilla.redhat.com/show_bug.cgi?id=2047376

插件详情

严重性: High

ID: 161026

文件名: redhat-RHSA-2022-1821.nasl

版本: 1.12

类型: local

代理: unix

发布时间: 2022/5/11

最近更新时间: 2025/3/15

支持的传感器: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

风险信息

VPR

风险因素: Medium

分数: 4.4

Vendor

Vendor Severity: Moderate

CVSS v2

风险因素: Medium

基本分数: 6.8

时间分数: 5.3

矢量: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 分数来源: CVE-2021-43818

CVSS v3

风险因素: High

基本分数: 7.5

时间分数: 6.7

矢量: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

时间矢量: CVSS:3.0/E:P/RL:O/RC:C

CVSS 分数来源: CVE-2022-0391

漏洞信息

CPE: p-cpe:/a:redhat:enterprise_linux:python2-rpm-macros, p-cpe:/a:redhat:enterprise_linux:python2-docutils, p-cpe:/a:redhat:enterprise_linux:pyyaml, p-cpe:/a:redhat:enterprise_linux:python2-urllib3, p-cpe:/a:redhat:enterprise_linux:python2-setuptools-wheel, p-cpe:/a:redhat:enterprise_linux:pytz, p-cpe:/a:redhat:enterprise_linux:python2-libs, p-cpe:/a:redhat:enterprise_linux:python2-setuptools, p-cpe:/a:redhat:enterprise_linux:python-pytest-mock, p-cpe:/a:redhat:enterprise_linux:python-jinja2, p-cpe:/a:redhat:enterprise_linux:python2-mock, p-cpe:/a:redhat:enterprise_linux:python-requests, p-cpe:/a:redhat:enterprise_linux:python2-sqlalchemy, p-cpe:/a:redhat:enterprise_linux:python2-psycopg2-tests, p-cpe:/a:redhat:enterprise_linux:python-mock, p-cpe:/a:redhat:enterprise_linux:python2-backports, p-cpe:/a:redhat:enterprise_linux:python2-numpy-f2py, p-cpe:/a:redhat:enterprise_linux:python2-markupsafe, p-cpe:/a:redhat:enterprise_linux:python2-numpy-doc, p-cpe:/a:redhat:enterprise_linux:python2-pytz, p-cpe:/a:redhat:enterprise_linux:python-setuptools_scm, p-cpe:/a:redhat:enterprise_linux:python2-psycopg2, p-cpe:/a:redhat:enterprise_linux:python2-scipy, p-cpe:/a:redhat:enterprise_linux:python-lxml, p-cpe:/a:redhat:enterprise_linux:python-attrs, p-cpe:/a:redhat:enterprise_linux:python2-docs, p-cpe:/a:redhat:enterprise_linux:python2-chardet, p-cpe:/a:redhat:enterprise_linux:python-backports-ssl_match_hostname, p-cpe:/a:redhat:enterprise_linux:python-virtualenv, p-cpe:/a:redhat:enterprise_linux:python-wheel, p-cpe:/a:redhat:enterprise_linux:python2-babel, p-cpe:/a:redhat:enterprise_linux:babel, p-cpe:/a:redhat:enterprise_linux:python-pysocks, p-cpe:/a:redhat:enterprise_linux:python2-dns, p-cpe:/a:redhat:enterprise_linux:python-pymysql, p-cpe:/a:redhat:enterprise_linux:python2-virtualenv, p-cpe:/a:redhat:enterprise_linux:python2-debug, p-cpe:/a:redhat:enterprise_linux:python-chardet, p-cpe:/a:redhat:enterprise_linux:python2-attrs, p-cpe:/a:redhat:enterprise_linux:python2-pip-wheel, p-cpe:/a:redhat:enterprise_linux:python-nose-docs, p-cpe:/a:redhat:enterprise_linux:python2-pytest-mock, p-cpe:/a:redhat:enterprise_linux:python2-funcsigs, p-cpe:/a:redhat:enterprise_linux:python2-tkinter, p-cpe:/a:redhat:enterprise_linux:python2-pysocks, p-cpe:/a:redhat:enterprise_linux:python2-pyyaml, p-cpe:/a:redhat:enterprise_linux:python2-devel, p-cpe:/a:redhat:enterprise_linux:python-funcsigs, p-cpe:/a:redhat:enterprise_linux:python-py, p-cpe:/a:redhat:enterprise_linux:python2-pluggy, p-cpe:/a:redhat:enterprise_linux:pytest, p-cpe:/a:redhat:enterprise_linux:python-psycopg2-doc, p-cpe:/a:redhat:enterprise_linux:python2-cython, p-cpe:/a:redhat:enterprise_linux:python-urllib3, p-cpe:/a:redhat:enterprise_linux:python-ipaddress, p-cpe:/a:redhat:enterprise_linux:python2-numpy, p-cpe:/a:redhat:enterprise_linux:python-coverage, p-cpe:/a:redhat:enterprise_linux:python-dns, p-cpe:/a:redhat:enterprise_linux:python2-wheel-wheel, p-cpe:/a:redhat:enterprise_linux:numpy, p-cpe:/a:redhat:enterprise_linux:python-nose, p-cpe:/a:redhat:enterprise_linux:python-docutils, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:python2-nose, p-cpe:/a:redhat:enterprise_linux:python2-pygments, p-cpe:/a:redhat:enterprise_linux:python2-pip, p-cpe:/a:redhat:enterprise_linux:python2-ipaddress, p-cpe:/a:redhat:enterprise_linux:python-docs, p-cpe:/a:redhat:enterprise_linux:python2-test, p-cpe:/a:redhat:enterprise_linux:python2-pymongo, p-cpe:/a:redhat:enterprise_linux:python-pluggy, p-cpe:/a:redhat:enterprise_linux:python2-idna, p-cpe:/a:redhat:enterprise_linux:python-markupsafe, p-cpe:/a:redhat:enterprise_linux:python2-docs-info, p-cpe:/a:redhat:enterprise_linux:python-pygments, p-cpe:/a:redhat:enterprise_linux:python2-py, p-cpe:/a:redhat:enterprise_linux:python2, p-cpe:/a:redhat:enterprise_linux:cython, p-cpe:/a:redhat:enterprise_linux:python2-lxml, p-cpe:/a:redhat:enterprise_linux:python-sqlalchemy-doc, p-cpe:/a:redhat:enterprise_linux:python-backports, p-cpe:/a:redhat:enterprise_linux:python2-coverage, p-cpe:/a:redhat:enterprise_linux:python-psycopg2, p-cpe:/a:redhat:enterprise_linux:python-pymongo, p-cpe:/a:redhat:enterprise_linux:python2-pytest, p-cpe:/a:redhat:enterprise_linux:python2-psycopg2-debug, p-cpe:/a:redhat:enterprise_linux:scipy, p-cpe:/a:redhat:enterprise_linux:python2-tools, p-cpe:/a:redhat:enterprise_linux:python2-six, p-cpe:/a:redhat:enterprise_linux:python2-wheel, p-cpe:/a:redhat:enterprise_linux:python2-bson, p-cpe:/a:redhat:enterprise_linux:python-sqlalchemy, p-cpe:/a:redhat:enterprise_linux:python2-setuptools_scm, p-cpe:/a:redhat:enterprise_linux:python2-jinja2, p-cpe:/a:redhat:enterprise_linux:python2-pymysql, p-cpe:/a:redhat:enterprise_linux:python2-pymongo-gridfs, p-cpe:/a:redhat:enterprise_linux:python2-requests, p-cpe:/a:redhat:enterprise_linux:python2-backports-ssl_match_hostname, p-cpe:/a:redhat:enterprise_linux:python-idna

必需的 KB 项: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

可利用: true

易利用性: Exploits are available

补丁发布日期: 2022/5/10

漏洞发布日期: 2021/9/20

参考资料信息

CVE: CVE-2021-3733, CVE-2021-3737, CVE-2021-4189, CVE-2021-43818, CVE-2022-0391

CWE: 252, 400, 74, 79

IAVA: 2021-A-0497-S

RHSA: 2022:1821