6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.001 Low
EPSS
Percentile
31.0%
Debian Security Advisory DSA-4892-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
April 18, 2021 https://www.debian.org/security/faq
Package : python-bleach
CVE ID : CVE-2021-23980
Debian Bug : 986251
It was reported that python-bleach, a whitelist-based HTML-sanitizing
library, is prone to a mutation XSS vulnerability in bleach.clean when
'svg' or 'math' are in the allowed tags, 'p' or 'br' are in allowed
tags, 'style', 'title', 'noscript', 'script', 'textarea', 'noframes',
'iframe', or 'xmp' are in allowed tags and 'strip_comments=False' is
set.
For the stable distribution (buster), this problem has been fixed in
version 3.1.2-0+deb10u2.
We recommend that you upgrade your python-bleach packages.
For the detailed security status of python-bleach please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/python-bleach
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 9 | all | python3-bleach | < 2.0-1+deb9u1 | python3-bleach_2.0-1+deb9u1_all.deb |
Debian | 9 | all | python-bleach | < 2.0-1+deb9u1 | python-bleach_2.0-1+deb9u1_all.deb |
Debian | 10 | all | python-bleach-doc | < 3.1.2-0+deb10u2 | python-bleach-doc_3.1.2-0+deb10u2_all.deb |
Debian | 9 | all | python-bleach-doc | < 2.0-1+deb9u1 | python-bleach-doc_2.0-1+deb9u1_all.deb |
Debian | 10 | all | python-bleach | < 3.1.2-0+deb10u2 | python-bleach_3.1.2-0+deb10u2_all.deb |
Debian | 10 | all | python3-bleach | < 3.1.2-0+deb10u2 | python3-bleach_3.1.2-0+deb10u2_all.deb |
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.001 Low
EPSS
Percentile
31.0%