libxml2 2.9.10+dfsg-5ubuntu0.20.10.2 source package in Ubuntu

Changelog

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

 -- Avital Ostromich <email address hidden>  Wed, 26 May 2021 19:43:37 -0400