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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.2414 USN-4044-1: ZNC vulnerability 3 July 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ZNC Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-12816 Reference: ESB-2019.2214 ESB-2019.2126 Original Bulletin: https://usn.ubuntu.com/4044-1/ - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4044-1: ZNC vulnerability 1 July 2019 znc vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 19.04 o Ubuntu 18.10 o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS Summary znc could be made to crash or run programs as an administrator if it opened a specially crafted file. Software Description o znc - advanced modular IRC bouncer Details Fix vulnerability where an authenticated non-admin users could load a module with a crafted name, then escalate privileges and run arbitrary code. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04 znc - 1.7.2-2ubuntu0.1 Ubuntu 18.10 znc - 1.7.1-2ubuntu0.2 Ubuntu 18.04 LTS znc - 1.6.6-1ubuntu0.2 Ubuntu 16.04 LTS znc - 1.6.3-1ubuntu0.2 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . After a standard system update you need to restart znc to make all the necessary changes. References o CVE-2019-12816 - --------------------------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 iQIVAwUBXRwNUGaOgq3Tt24GAQjSAhAAyirJVH/OTpzkYskH2948JNe3N9gvJt87 Ur8eBf8slJ6B90VpVprkmcetzk6z8QObDOaUC97MLB3d9ZpbKybXnaHpOBrKt7he DLp8zbZTQE6NBZLKQLg9axt3i6UrGunk830dXIjELgtqNacMB4qlMpNou+kyao7v CRBgYNNagkh0blb5/2vqYJY5pPgO+4nr4pYvstO41bQeax3w9a5dR8v/+TjHMIl/ /wD3JRZIxBMWgQF98hPNeOrTqnH7i1ELxIdAWvKKtQRdwEXKhBos4GVb7B1xVx/p 8cbZ0RTUk48uGQHK54E36hAC+5FCMItmM2TRGVXw4Rh3Ey2z0+9Cs1zFSXDkHwp4 04vUwezRcB1YSgr//ffhl354c0hWVA/x4EqpCOOJt4JUT04MFTCE4ZWIzpwgxzYA y6fHdK/M0X6kys0wXn5RLi8kRI79zD2RF1WyQTgvFR97G3E0HUo0N23PUPII0mDB ZNUS+pf4P/V15X1DKT0ALVlnMJWRlGRkWi2hsxF7bU/3+eMLOxeozJbLbeUHOgOu yijxqgJVWHu4eODnwFYvtmJcJlLWAw1+b3wjUbiC1KsL3hnaDtohC9+PJ+bfCKMl kjUvEwJeCt/rw+95OfGXQOugVZuX6UNN7TGzbtCSs+1hvJ/FD8n4kSuEqM50W4Dq 0aPSoN91x9Y= =BWZS -----END PGP SIGNATURE-----