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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.0389 libidn2 security update 3 February 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libidn2 Publisher: Debian Operating System: Debian GNU/Linux 10 Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-18224 Reference: ESB-2019.4510 ESB-2019.4016 Original Bulletin: http://www.debian.org/security/2020/dsa-4613 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - - ------------------------------------------------------------------------- Debian Security Advisory DSA-4613-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso February 01, 2020 https://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : libidn2 CVE ID : CVE-2019-18224 Debian Bug : 942895 A heap-based buffer overflow vulnerability was discovered in the idn2_to_ascii_4i() function in libidn2, the GNU library for Internationalized Domain Names (IDNs), which could result in denial of service, or the execution of arbitrary code when processing a long domain string. For the stable distribution (buster), this problem has been fixed in version 2.0.5-1+deb10u1. We recommend that you upgrade your libidn2 packages. For the detailed security status of libidn2 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/libidn2 Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org - -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAl40uPpfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0S/gw/9GW1HtnA4GMzDtDp5SMs8IvzKTzBuxwF+NfuO6TJAF1rZhkjylvhR24zm 24zclQQ/MUF3/j7wa8ududelVNCE69DejrG1a1cFZvHDru38EE5oPBhZUtsk9H6G Ohxo+Yu1WDD7tHVWqjK5A05W4m/e9wBH5S9HwuznDRJ2c2dniNmCaQG5AFo7Xbdh QgNKfqyveNSqV/hwns7QXsECg0Md+1sjP022kI7jy6g4oUis1vRS85ptYAZW9zZL 7A/xAMEfnXI4LP5c85axCfjPHcv43u1rC/h4c45siEuq0BttqcPDRDvNpceibxQj VtujfKWAVlTPWeLiEjzEzRXBdJLigJPZjCyDlT5lK8D/CUE/oLpoMAxEOFufk3wk vgHlD5nNVJMXEFL1vDo8RGoiNOBavO1pXuxCHZDEo5leOBI3YLoWm04AF5KWHdJB nDEfsO0rXix28yhmWhu2YfazbkINcxU0gKPOz6Le+vIy88/0EcrFATyyrpl9aEaj VX6PYZxJ6JtwUvwruEBWiciJV5KxR7HHUZ6eGd7HKcSYIUz889QjLApiuzhjieMp WbumsmAXpXKUq03ro/F7c6rH7rli/AP+HHytH2XL2mOzXAItT4kcThXXvxf1g6md sfeB2hLUKTdbujHzHU8vB1Wn2yVtCA7XiI2BGJRa/WG//zhkAT8= =aq9M - -----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 iQIVAwUBXjdtL2aOgq3Tt24GAQhfDw/+PTAp3meFAyLuUzpRCsFhysm1TUd4Iu9p 9RqyOdDP9AWUiFJsZ2JEwqVeTFUXzhqSjdjUpc5oNMfwQf6jf7TQscRW1VO/Jwh1 BOBZuD8ZbPCjNULr8SNHlA/mtxL8vQeuCuhv1jcnUDB7TDxC7qtG8buo1Dbg//Ed rlT9JsM3S0D4HjmT9RbzTHNA9datA5AQgf5N/l5eoKmr3IAH9yrcwMApZOnIezyl besJi9ihIYRYcjrOK0gZ+vxg1QJGMDKDI/wjIwmIyJR+wPtoA23z2dQa29+HSHHy F1hh1wfe68rJgCasL4onfSSJpfqmpAAAylUHWpcqPRGLf6pUcC+GBSPp+xYKKCgG mmFeX9FTOf/qm/7sBR31tT9CRkTPTzDnBDtUshCg92Jams/RRUyvBvLJhNR0f+ul tedL6K0ZhRSB0ToIeyWobD9DXVifZk3RQLJronEmwv6f2SvbkTlk1k2E5KaUurFx +z2R/bnpzwUxXiplplkTkVTU7bMkNWvNp0hV4nBJrsRpkjblgXJ/eNTJEhbAVhdI XFIPiJDF7tTCV9LJLBMu3REWFVuIcBNMkfcEZoRmPXrtO3/gqMPzDF2Ub3c7UUuV vy9lemXlO715htTtAlPhWjt7SKd+QmjGLHDZ6njjrBK5YZKuzZXmCpZUPXbPqymy UwtLyVQBIiU= =bRFq -----END PGP SIGNATURE-----