Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.1849 libxml2 security update 31 May 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libxml2 Publisher: Debian Operating System: Debian GNU/Linux Linux variants Impact/Access: Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-3541 Original Bulletin: https://lists.debian.org/debian-lts-announce/2021/05/msg00024.html Comment: This advisory references vulnerabilities in products which run on platforms other than Debian. It is recommended that administrators running libxml2 check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - - ------------------------------------------------------------------------- Debian LTS Advisory DLA-2669-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Thorsten Alteholz May 30, 2021 https://wiki.debian.org/LTS - - ------------------------------------------------------------------------- Package : libxml2 Version : 2.9.4+dfsg1-2.2+deb9u5 CVE ID : CVE-2021-3541 An issue has been found in libxml2, the GNOME XML library. This issue is called "Parameter Laughs"-attack and is related to parameter entities expansion. It is similar to the "Billion Laughs"-attacks found earlier in libexpat. More information can be found at [1] [1] https://blog.hartwork.org/posts/cve-2021-3541-parameter-laughs-fixed-in-libxml2-2-9-11/ For Debian 9 stretch, this problem has been fixed in version 2.9.4+dfsg1-2.2+deb9u5. We recommend that you upgrade your libxml2 packages. For the detailed security status of libxml2 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/libxml2 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS - -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEEYgH7/9u94Hgi6ruWlvysDTh7WEcFAmCzR3hfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDYy MDFGQkZGREJCREUwNzgyMkVBQkI5Njk2RkNBQzBEMzg3QjU4NDcACgkQlvysDTh7 WEdzThAAqGOlZzCYCvLD4aG28VWccvlo2aVl2Oe0aoIYz+b0cDtPzmlKSZlwxnQm gm3FPEeDNSap46cU0e/qeH04IKcUb7OlVgIyp9pH18iQY6GHtA2glbQGGftKVot5 Tp0yrt6KFrHKCfcvgTZcqRB4fMP6P2kSXO/753+fnJAk4ZctTTjn/oKA6HicDxBH 1ZjGkqBN/DrENxW8jp1quOTXE++sbRUI2bTegMjR88QwI1OoT6UMZfhlRPzNrzdV bGxqmr/tnzhWRCb/7f1g/0Whf6aRdf9tcgbj+ILdqVzpgp4qtzhJGmBIKYenXTad 5RmgIddjjLgPo/NUsApCDfSH5vSP3ZjYLLvRzGaR/aTrbaR0Smauk3Z/CtSwvbjr je5kPmProOiEOx55J3HCbelNBr8DURB7mZDpd8fRAIlGmLOf2ejq1wivWbWpuSt7 LeWBIrScg+y7QZjf32u5pc8gDtXLq+RMD6tbQirIsK6UqtvU4l3txd7QBg5LwE4D aNVabJIjYh/+tkC+whmozazR50T9DRyjI8SshiZ7cp694OEjEd/H2su80M3ibPbO /2VaQHtMwVaiJb1g+kIHGoUsq2BW1wlj+pLittQ02tZa0L4+wLVz1d+0jLjC8MGO bF40rYtipsENSkGlLw0ryoS7uWPWILmY7ZCX40rQny7UIvzYpaU= =6Bv9 - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYLRTEeNLKJtyKPYoAQjjKA/5ASOwgmWo17tD0Z7XkSYk02Cg9eiJnDYA z21DJrLQYyWT5p2YUBWtgRzb07iTEkaRQV0cpIozxV78AXSrLKvUuprrbgMDgiDK MuDsn2nRrZKCUrJ4p0OpeCpxemZpVgwcfgZqWTSf8T6+h+DkobKzP4A5qOVHnjKX wZFKWGaEBnmsqT0baVydJtUtqpG/hnd3S1bbsMN4P6zngiH3yGjF1j8zVea2qcEn 4SelTmWJJXWw1hMRbLpwQNwM+Prr6uy6fenPnNJNJWjKslW/Hl/kS7rewkj/NAlh gxG2TkKs+ckgVjIS5Zbtjt2ujK3R197vzipsXuKajmCFW1nEOTG4GzDSuiJinY+T KAr9PVuIUTqropMSW65QJFm3+dJBSnFubYqqdPBtuLbzMCKiJgmJPuYJMV2kSDO7 3Mips11HDw9hccm34rz3JIqwFBrgVIwL7CzkHQsmvfmL3aeOIVVSxxDJzkOvB3nc Xzon2l7Ox0nhNCbwv1KHCg976MkOVCSobxO5szWjwIDx+Y60iscoW7QdBKlYU2tO oYN1JAg0unOC4dAprBl0ObytapknLE9NmztwRKyYQaXaFuS2gsaWIHqOab2pHtL1 XOblFzjft/FpyPaKw5kYgLT0N8mT16ABim/3tWskJyNns3qbWf/60Rpby14nko6h sLXncF48a5g= =cFGw -----END PGP SIGNATURE-----