expat relax fix for CVE-2022-25236 and possible regressions

[Leonidas S. Barbosa]

Sebastian Pipping report to us that these additional fixes are required to fix properly CVE-2022-25236 in regard to RCF 3986 URI characters and possibly regressions as the merge request points.

[Leonidas S. Barbosa (leosilvab)]

https://github.com/libexpat/libexpat/pull/577

[Leonidas S. Barbosa (leosilvab)]

https://github.com/exxamalte/python-aio-georss-client/issues/29

[Launchpad Janitor (janitor)]

This bug was fixed in the package expat - 2.4.1-2ubuntu0.3

---------------
expat (2.4.1-2ubuntu0.3) impish-security; urgency=medium

  * SECURITY UPDATE: Stack exhaustion
    - debian/patches/CVE-2022-25313.patch: prevent
      stack exhaustion in build_model in expat/lib/xmlparse.c.
    - debian/patches/fix-build_model-regression.patch: fix build_model
      regression in expat/lib/xmlparse.c.
    - debian/patches/protect-against-nested-element*: in expat/lib/xmlparse.
    - CVE-2022-25313
  * SECURITY UPDATE: Integer overflow
    - debian/patches/CVE-2022-25314.patch: prevent integer overflow in
      copyString in expat/lib/xmlparse.c.
    - CVE-2022-25314
  * SECURITY UPDATE: Integer overflow
    - debian/patches/CVE-2022-25315.patch: prevent integer overflow in
      storeRawNames in expat/lib/xmlparse.c.
    - CVE-2022-25315
  * SECURITY UPDATE: relax fix to CVE-2022-25236 with regard to
    RFC 3986 URI characters and possibly regressions
    - debian/patches/CVE-2022-25236-3.patch: add a note on namespace URI
      validation in expat/doc/reference.html, expat/lib/expat.h.
    - debian/patches/CVE-2022-25236-4.patch: document namespace separator
      effect right in header expat/lib/expat.h.
    - debian/patches/CVE-2022-25236-5.patch: cover relaxed fix in tests.
    - debian/patches/CVE-2022-25236-6.patch: relax fix with regard to
      RFC 3986 URI characters in expat/lib/xmlparse.c. (LP: #1963903)

 -- Leonidas Da Silva Barbosa <email address hidden> Mon, 21 Feb 2022 14:42:01 -0300

[Launchpad Janitor (janitor)]

This bug was fixed in the package expat - 2.2.9-1ubuntu0.4

---------------
expat (2.2.9-1ubuntu0.4) focal-security; urgency=medium

  * SECURITY UPDATE: Stack exhaustion
    - debian/patches/CVE-2022-25313.patch: prevent
      stack exhaustion in build_model in expat/lib/xmlparse.c.
    - debian/patches/fix-build_model-regression.patch: fix build_model
      regression in expat/lib/xmlparse.c.
    - debian/patches/protect-against-nested-element*: in expat/lib/xmlparse.
    - CVE-2022-25313
  * SECURITY UPDATE: Integer overflow
    - debian/patches/CVE-2022-25314.patch: prevent integer overflow in
      copyString in expat/lib/xmlparse.c.
    - CVE-2022-25314
  * SECURITY UPDATE: Integer overflow
    - debian/patches/CVE-2022-25315.patch: prevent integer overflow in
      storeRawNames in expat/lib/xmlparse.c.
    - CVE-2022-25315
  * SECURITY UPDATE: relax fix to CVE-2022-25236 with regard to
    RFC 3986 URI characters and possibly regressions
    - debian/patches/CVE-2022-25236-3.patch: add a note on namespace URI
      validation in expat/doc/reference.html, expat/lib/expat.h.
    - debian/patches/CVE-2022-25236-4.patch: document namespace separator
      effect right in header expat/lib/expat.h.
    - debian/patches/CVE-2022-25236-5.patch: cover relaxed fix in tests.
    - debian/patches/CVE-2022-25236-6.patch: relax fix with regard to
      RFC 3986 URI characters in expat/lib/xmlparse.c. (LP: #1963903)
  * removing duplicated tests
    - debian/patches/fix_test_dup.patch: removing tests were duplicated in
      expat/tests/runtests.c.

 -- Leonidas Da Silva Barbosa <email address hidden> Mon, 21 Feb 2022 15:48:46 -0300

[Launchpad Janitor (janitor)]

This bug was fixed in the package expat - 2.2.5-3ubuntu0.7

---------------
expat (2.2.5-3ubuntu0.7) bionic-security; urgency=medium

  * SECURITY UPDATE: Stack exhaustion
    - debian/patches/CVE-2022-25313.patch: prevent
      stack exhaustion in build_model in expat/lib/xmlparse.c.
    - debian/patches/fix-build_model-regression.patch: fix build_model
      regression in expat/lib/xmlparse.c.
    - CVE-2022-25313
  * SECURITY UPDATE: Integer overflow
    - debian/patches/CVE-2022-25314.patch: prevent integer overflow in
      copyString in expat/lib/xmlparse.c.
    - CVE-2022-25314
  * SECURITY UPDATE: Integer overflow
    - debian/patches/CVE-2022-25315.patch: prevent integer overflow in
      storeRawNames in expat/lib/xmlparse.c.
    - CVE-2022-25315
  * SECURITY UPDATE: relax fix to CVE-2022-25236 with regard to
    RFC 3986 URI characters and possibly regressions
    - debian/patches/CVE-2022-25236-3.patch: add a note on namespace URI
      validation in expat/doc/reference.html, expat/lib/expat.h.
    - debian/patches/CVE-2022-25236-4.patch: document namespace separator
      effect right in header expat/lib/expat.h.
    - debian/patches/CVE-2022-25236-5.patch: cover relaxed fix in tests.
    - debian/patches/CVE-2022-25236-6.patch: relax fix with regard to
      RFC 3986 URI characters in expat/lib/xmlparse.c. (LP: #1963903)

 -- Leonidas Da Silva Barbosa <email address hidden> Tue, 08 Mar 2022 09:28:37 -0300