Provide references for CVE-2021-28957.
Where can I find more information about CVE-2021-28957?
References are available at: https://bugs.launchpad.net/lxml/+bug/1888153, https://github.com/lxml/lxml/pull/316/commits/10ec1b4e9f93713513a3264ed6158af22492f270, https://lists.debian.org/debian-lts-announce/2021/03/msg00031.html, https://www.debian.org/security/2021/dsa-4880, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3C2R44VDUY7FJVMAVRZ2WY7XYL4SVN45/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XXN3QPWCTQVOGW4BMWV3AUUZZ4NRZNSQ/, https://www.oracle.com/security-alerts/cpuoct2021.html, https://github.com/lxml/lxml/commit/a5f9cb52079dc57477c460dbe6ba0f775e14a999, https://security.netapp.com/advisory/ntap-20210521-0004/, https://security.gentoo.org/glsa/202208-06.