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Package "python-libxml2"

Name: python-libxml2

Description:

Python bindings for the GNOME XML library
Latest version: 2.9.10+dfsg-5ubuntu0.20.04.7
Release: focal (20.04)
Level: security
Repository: universe
Head package: libxml2
Homepage: http://xmlsoft.org

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base universe 2.9.10+dfsg-5
updates universe 2.9.10+dfsg-5ubuntu0.20.04.7

Changelog

Version: 2.9.10+dfsg-5ubuntu0.20.04.2 2022-03-14 12:06:25 UTC

  libxml2 (2.9.10+dfsg-5ubuntu0.20.04.2) focal-security; urgency=medium

  * SECURITY UPDATE: use-after-free of ID and IDREF attributes
    - debian/patches/CVE-2022-23308.patch: normalize ID attributes in
      valid.c.
    - CVE-2022-23308

 -- Marc Deslauriers <email address hidden> Thu, 10 Mar 2022 12:59:13 -0500
Source diff to previous version
CVE-2022-23308 valid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF attributes.

Version: 2.9.10+dfsg-5ubuntu0.20.04.1 2021-06-17 16:06:25 UTC

  libxml2 (2.9.10+dfsg-5ubuntu0.20.04.1) focal-security; urgency=medium

  * SECURITY UPDATE: out-of-bounds read
    - debian/patches/CVE-2020-24977.patch: Make sure that truncated UTF-8
      sequences don't cause an out-of-bounds array access in xmllint.
    - CVE-2020-24977
  * SECURITY UPDATE: use-after-free in xmlEncodeEntitiesInternal
    - debian/patches/CVE-2021-3516.patch: Call htmlCtxtUseOptions to make sure
      that names aren't stored in dictionaries.
    - CVE-2021-3516
  * SECURITY UPDATE: heap-based buffer overflow in xmlEncodeEntitiesInternal
    - debian/patches/CVE-2021-3517.patch: Add some checks to validate input is
      UTF-8 format, supplementing CVE-2020-24977 fix.
    - CVE-2021-3517
  * SECURITY UPDATE: use-after-free in xmlXIncludeDoProcess
    - debian/patches/CVE-2021-3518.patch: Move from a block list to an allow
      list approach to avoid descending into other node types that can't
      contain elements.
    - CVE-2021-3518
  * SECURITY UPDATE: NULL pointer dereference in xmlValidBuildAContentModel
    - debian/patches/CVE-2021-3537.patch: Check return value of recursive calls
      to xmlParseElementChildrenContentDeclPriv and return immediately in case
      of errors.
    - CVE-2021-3537
  * SECURITY UPDATE: Exponential entity expansion
    - debian/patches/Patch-for-security-issue-CVE-2021-3541.patch: Add check to
      xmlParserEntityCheck to prevent entity exponential.
    - CVE-2021-3541

 -- Avital Ostromich <email address hidden> Wed, 26 May 2021 19:51:20 -0400
CVE-2020-24977 GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixe
CVE-2021-3516 There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trig
CVE-2021-3517 There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be
CVE-2021-3518 There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with l
CVE-2021-3537 A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL der


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