[ubuntu/groovy-updates] libxml2 2.9.10+dfsg-5ubuntu0.20.10.2 (Accepted)

Ubuntu Archive Robot ubuntu-archive-robot at lists.canonical.com
Thu Jun 17 15:28:19 UTC 2021

libxml2 (2.9.10+dfsg-5ubuntu0.20.10.2) groovy-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

Date: 2021-05-28 22:17:09.027899+00:00
Changed-By: Avital Ostromich <avital.ostromich at canonical.com>
Signed-By: Ubuntu Archive Robot <ubuntu-archive-robot at lists.canonical.com>
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