CVE-2020-6817 Common Vulnerabilities and Exposures

Upstream information

CVE-2020-6817 at MITRE

Description

bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS). Calls to bleach.clean with an allowed tag with an allowed style attribute are vulnerable to ReDoS. For example, bleach.clean(..., attributes={'a': ['style']}).

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v3 Scores
	National Vulnerability Database
Base Score	7.5
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality Impact	None
Integrity Impact	None
Availability Impact	High
CVSSv3 Version	3.1

SUSE Bugzilla entry: 1168280 [RESOLVED / FIXED]

SUSE Security Advisories:

openSUSE-SU-2021:0552-1, published Wed Apr 14 21:38:51 2021
openSUSE-SU-2021:0571-1, published Sun Apr 18 03:38:24 2021

List of released packages

Product(s)	Fixed package version(s)	References
SUSE Linux Enterprise Desktop 15 SP6 SUSE Linux Enterprise High Performance Computing 15 SP6 SUSE Linux Enterprise Module for Python 3 15 SP6 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP6	`python311-bleach >= 6.0.0-150400.9.3.1`	Patchnames: SUSE Linux Enterprise Module for Python 3 15 SP6 GA python311-bleach-6.0.0-150400.9.3.1
SUSE Package Hub 15 SP2	`python2-bleach >= 3.1.5-bp152.2.4.1` `python3-bleach >= 3.1.5-bp152.2.4.1`	Patchnames: openSUSE-2021-571
openSUSE Leap 15.2	`python2-bleach >= 3.1.5-lp152.2.3.1` `python3-bleach >= 3.1.5-lp152.2.3.1`	Patchnames: openSUSE-2021-552
openSUSE Tumbleweed	`python310-bleach >= 6.1.0-1.5` `python311-bleach >= 6.1.0-1.5` `python312-bleach >= 6.1.0-1.5` `python36-bleach >= 3.3.0-1.4` `python38-bleach >= 3.3.0-1.4` `python39-bleach >= 3.3.0-1.4`	Patchnames: openSUSE-Tumbleweed-2024-11219 openSUSE-Tumbleweed-2024-14134

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s)	Source package	State
Products past their end of life and not receiving proactive updates anymore.
SUSE Package Hub 15 SP2	python-bleach	Released

SUSE Timeline for this CVE

CVE page created: Wed Apr 1 05:55:51 2020
CVE page last modified: Wed Oct 30 11:37:03 2024