CVE-2021-43818

 

Published at: - 13-12-2021 07:15

Last modified: - 10-08-2022 10:15

Total changes: - 17

Description

lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

 

Verification logic

 

Reference

• https://github.com/lxml/lxml/commit/f2330237440df7e8f39c3ad1b1aa8852be3b27c0
• https://github.com/lxml/lxml/commit/a3eacbc0dcf1de1c822ec29fb7d090a4b1712a9c#diff-59130575b4fb2932c957db2922977d7d89afb0b2085357db1a14615a2fcad776
• https://github.com/lxml/lxml/security/advisories/GHSA-55x5-fj6c-h6m8
• https://github.com/lxml/lxml/commit/12fa9669007180a7bb87d990c375cf91ca5b664a
• FEDORA-2021-9f9e7c5c4f-Mailing List, Third Party Advisory
• FEDORA-2021-6e8fb79f90-Mailing List, Third Party Advisory
• [debian-lts-announce] 20211230 [SECURITY] [DLA 2871-1] lxml security update-Mailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20220107-0005/
• DSA-5043-Third Party Advisory
• FEDORA-2022-96c79bf003-Mailing List, Third Party Advisory
• FEDORA-2022-7129fbaeed-Mailing List, Third Party Advisory
• https://www.oracle.com/security-alerts/cpuapr2022.html
• N/A-Patch, Third Party Advisory
• GLSA-202208-06-

 

Keywords

NVD

 

CVE-2021-43818

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures