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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.0194 snapd security update 18 January 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: snapd Publisher: Debian Operating System: Debian GNU/Linux Impact/Access: Access Confidential Data -- Remote/Unauthenticated Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-11840 Reference: ESB-2019.2367 Original Bulletin: https://lists.debian.org/debian-lts-announce/2021/01/msg00015.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 - - ------------------------------------------------------------------------- Debian LTS Advisory DLA-2527-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Brian May January 18, 2021 https://wiki.debian.org/LTS - - ------------------------------------------------------------------------- Package : snapd Version : 2.21-2+deb9u1 CVE ID : CVE-2019-11840 golang-go.crypto was recently updated with a fix for CVE-2019-11840. This in turn requires all packages that use the affected code to be recompiled in order to pick up the security fix. CVE-2019-11840 An issue was discovered in supplementary Go cryptography libraries, aka golang-googlecode-go-crypto. If more than 256 GiB of keystream is generated, or if the counter otherwise grows greater than 32 bits, the amd64 implementation will first generate incorrect output, and then cycle back to previously generated keystream. Repeated keystream bytes can lead to loss of confidentiality in encryption applications, or to predictability in CSPRNG applications. For Debian 9 stretch, this problem has been fixed in version 2.21-2+deb9u1. We recommend that you upgrade your snapd packages. For the detailed security status of snapd please refer to its security tracker page at: https://security-tracker.debian.org/tracker/snapd 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----- iQIzBAEBCAAdFiEEKpwfR8DOwu5vyB4TKpJZkldkSvoFAmAEqecACgkQKpJZkldk SvoQLg//c/lgWl8t2By4anfuAS3NbIO0pHvEpvZ9bw1CuffMFUG+DAIdjUYR9LHT T/dfrZccoJh+CKo7dU/vCKJDZaBdIdDzX420oQQQ+4MxUEpkq1iFlyy3UblV4mL6 79wpQY6QCEr/ytycl82NJSXUNo38EBH97lf3W9XeBm4cPscYbBBjbIpXD6748jNo e80KHNrVhQEbEUjEWbekgEgwSWGBnjIoImBQaZWvT3xiR6HkuTAnoF7FS6LbGUqe /IQa4FlyLzXU6JSWDkKgzgXVTdfrlVwH3cdElqIK2Rv/IA0Lm9gokzFQ+AZ4j7VH TDX2Sn+q6ls8MTohDDxi+byTVwBP0P9SnKyRKxSkcf9n5SzUyt16AtJdGcwn+bj4 0l+2nRZOjqMzXPCPQTFSfrdRONXyACeDftnScv+a1eFknQKvurskkLfeoqFG8mvN pgDQ00RQrT9YzD0L00OKMpL7c02f/cAH+3kiIlhXqpGk8m9xusZeFE/et7zihOCp aO7sS+hrl6Sve9JVVLWwjlttNTFgyK3S7w7yf+AJ7lhAzRYKTsNyDojYk3Oafuve 2YM8+6PxFN7QUQh6nDTe5Yc59bjifPXOJs0X8xEyPIDJs6i7KtvnsH+et82vHP1e Bvg/7eEKavqLKjp7UxSKTW2Kl7EqnpYma4bmLu9fe4g8ZQoY3Rs= =Dw9o - -----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 iQIVAwUBYATT4eNLKJtyKPYoAQhovA//UEznCos4v7vl5Ccj2Q30gn013wYIgNq2 zdLmnNR6PXwfPbHCw/zndnlsE43+j8itVprdDetDEtEarYMb8hzTy9b8iXK9M2kt F7qF8aJ1erGU6fLa5Nuqv2yKV8hW6GjbfHxQhSkJWvflIVhe1RZbPFSYOEZ8t83M NUdta8AncKOH5sPZ3+0NhufWNso7mOsh1YUSXC5cknuBA9tfPevrpKmZWBdgZiSP aSqRwSIM70dKR0rYr7VtBBM1+savwUvc0sq4b9Aysx3mQLArcmtjmXS8prjvdWbW oyVw170fXJ5q/W2PkhLVPhmyPvypvJg/39QeNM4oFb63eQzCrF13eAQqDqgElvbG /ejFgDDM1dWqXyNccM/khESv3s1K8gkYkYMLuDFKzNp5diN8LbI162OWNIrPnVKa A9kSyVoqOPy8GKulQd2RIN/PUa8pmOoIRkj57ucO89QY3eE9K1nrnDsXLqQIJnan RNn65bw9egHJpJEh2JwPTf0gy6+4SN1s23WjFVliGm7R0sNhMvJ4ogeaGzu1DpiH 1nJQwbInh6hzVAJSfI9nQMY11J/pHaSzOkLCKNBmqCR+eYN4+L50/NuP+WSHutrX vHw7o75che2RhCP1OFmuKXIYiHo0sUI0GWA/ShypJgdaUDCV7EcmdrKAN7OxyKzM lcthSOipc/I= =OUJs -----END PGP SIGNATURE-----