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Bug 54346 - lxml: Multiple issues (5.0)
lxml: Multiple issues (5.0)
Status: CLOSED FIXED
Product: UCS
Classification: Unclassified
Component: Security updates
UCS 5.0
All Linux
: P3 normal (vote)
: UCS 5.0-1-errata
Assigned To: Quality Assurance
Philipp Hahn
:
Depends on:
Blocks:
  Show dependency tree / graph
 
Reported: 2022-01-17 08:21 CET by Quality Assurance
Modified: 2022-01-19 13:55 CET (History)
0 users

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What kind of report is it?: Security Issue
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Max CVSS v3 score: 8.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L)

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Description Quality Assurance univentionstaff 2022-01-17 08:21:19 CET 
New Debian lxml 4.3.2-1+deb10u4 fixes:
This update addresses the following issue:
* HTML Cleaner allows crafted and SVG embedded scripts to pass through  (CVE-2021-43818)
Comment 1 Quality Assurance univentionstaff 2022-01-17 09:01:15 CET 
--- mirror/ftp/pool/main/l/lxml/lxml_4.3.2-1+deb10u3.dsc
+++ apt/ucs_5.0-0-errata5.0-1/source/lxml_4.3.2-1+deb10u4.dsc
@@ -1,3 +1,11 @@
+4.3.2-1+deb10u4 [Wed, 12 Jan 2022 17:58:11 +0100] Salvatore Bonaccorso <carnil@debian.org>:
+
+  * Non-maintainer upload by the Security Team.
+  * Cleaner: Prevent "@import" from re-occurring in the CSS after
+    replacements, e.g. "@@importimport" (CVE-2021-43818) (Closes: #1001885)
+  * Cleaner: Remove SVG image data URLs since they can embed script content
+    (CVE-2021-43818) (Closes: #1001885)
+
 4.3.2-1+deb10u3 [Tue, 23 Mar 2021 19:03:02 +0100] Thorsten Alteholz <debian@alteholz.de>:
 
   * Non-maintainer upload by the LTS Team.

<http://piuparts.knut.univention.de/5.0-1/#7628451185786939588>
Comment 2 Philipp Hahn univentionstaff 2022-01-18 11:17:56 CET 
OK: yaml
OK: announce_errata
OK: patch
OK: piuparts
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