Update dependency lxml to v4.9.1 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
lxml (source, changelog)	==4.6.4 -> ==4.9.1

GitHub Vulnerability Alerts

CVE-2021-43818

Impact

The HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs.

Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5.

Patches

The issue has been resolved in lxml 4.6.5.

Workarounds

None.

References

The issues are tracked under the report IDs GHSL-2021-1037 and GHSL-2021-1038.

CVE-2022-2309

NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only applies when lxml is used together with libxml2 2.9.10 through 2.9.14. libxml2 2.9.9 and earlier are not affected. It allows triggering crashes through forged input data, given a vulnerable code sequence in the application. The vulnerability is caused by the iterwalk function (also used by the canonicalize function). Such code shouldn't be in wide-spread use, given that parsing + iterwalk would usually be replaced with the more efficient iterparse function. However, an XML converter that serialises to C14N would also be vulnerable, for example, and there are legitimate use cases for this code sequence. If untrusted input is received (also remotely) and processed via iterwalk function, a crash can be triggered.

---

Release Notes

lxml/lxml

v4.9.1

Compare Source

==================

Bugs fixed

• A crash was resolved when using iterwalk() (or canonicalize())
  after parsing certain incorrect input. Note that iterwalk() can crash
  on valid input parsed with the same parser after failing to parse the
  incorrect input.

v4.9.0

Compare Source

==================

Bugs fixed

• GH#​341: The mixin inheritance order in lxml.html was corrected.
  Patch by xmo-odoo.

Other changes

• Built with Cython 0.29.30 to adapt to changes in Python 3.11 and 3.12.

• Wheels include zlib 1.2.12, libxml2 2.9.14 and libxslt 1.1.35
  (libxml2 2.9.12+ and libxslt 1.1.34 on Windows).

• GH#​343: Windows-AArch64 build support in Visual Studio.
  Patch by Steve Dower.

v4.8.0

Compare Source

==================

Features added

• GH#​337: Path-like objects are now supported throughout the API instead of just strings.
  Patch by Henning Janssen.

• The ElementMaker now supports QName values as tags, which always override
  the default namespace of the factory.

Bugs fixed

• GH#​338: In lxml.objectify, the XSI float annotation "nan" and "inf" were spelled in
  lower case, whereas XML Schema datatypes define them as "NaN" and "INF" respectively.
  Patch by Tobias Deiminger.

Other changes

• Built with Cython 0.29.28.

v4.7.1

Compare Source

==================

Features added

• Chunked Unicode string parsing via parser.feed() now encodes the input data
  to the native UTF-8 encoding directly, instead of going through Py_UNICODE /
  wchar_t encoding first, which previously required duplicate recoding in most cases.

Bugs fixed

• The standard namespace prefixes were mishandled during "C14N2" serialisation on Python 3.
  See https://mail.python.org/archives/list/[email protected]/thread/6ZFBHFOVHOS5GFDOAMPCT6HM5HZPWQ4Q/

• lxml.objectify previously accepted non-XML numbers with underscores (like "1_000")
  as integers or float values in Python 3.6 and later. It now adheres to the number
  format of the XML spec again.

• LP#​1939031: Static wheels of lxml now contain the header files of zlib and libiconv
  (in addition to the already provided headers of libxml2/libxslt/libexslt).

Other changes

• Wheels include libxml2 2.9.12+ and libxslt 1.1.34 (also on Windows).

v4.7.0

Compare Source

==================

• Release retracted due to missing files in lxml/includes/.

v4.6.5

Compare Source

==================

Bugs fixed

• A vulnerability (GHSL-2021-1038) in the HTML cleaner allowed sneaking script
  content through SVG images (CVE-2021-43818).

• A vulnerability (GHSL-2021-1037) in the HTML cleaner allowed sneaking script
  content through CSS imports and other crafted constructs (CVE-2021-43818).

---

Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.