Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.3466 USN-4574-1: libseccomp-golang vulnerability 8 October 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: golang-github-seccomp-libseccomp-golang Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-18367 Reference: ESB-2020.2755 Original Bulletin: https://usn.ubuntu.com/4574-1/ - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4574-1: libseccomp-golang vulnerability 07 October 2020 A system hardening measure could be bypassed. Releases o Ubuntu 16.04 LTS Packages o golang-github-seccomp-libseccomp-golang - a Go-based interface to the libseccomp library Details It was discovered that libseccomp-golang did not properly generate BPFs. If a process were running under a restrictive seccomp filter that specified multiple syscall arguments, the application could potentially bypass the intended restrictions put in place by seccomp. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 o golang-github-seccomp-libseccomp-golang-dev - 0.0~git20150813.0.1b506fc-2+deb9u1build0.16.04.1 After a standard system update anything that depends on libseccomp-golang needs to be rebuilt to make all the necessary changes. References o CVE-2017-18367 - --------------------------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 iQIVAwUBX35KVuNLKJtyKPYoAQjCcw/+No2nJWm86fLeZ4++5S7ltr78Wq9GkfSF tIEUrHzEwBYWd8Jl/DL2UaUIIpULeFgaFK6mSVYawfW5l6usk/yFn3pa3P/zmyHh 2oWiJo7sMBQU8MfvMd288ZmagUyP6iGXw35641ohjw1XK9nvoq338mcIA8eCwhyK +3HfbjVGw17FuamQBxN64v31nlEZ1vj2ABokFFGLYj4ZhbhuIEl2CIYON0u3bmhy Iv7xWkzYCiKdPCI1rZCzIL8IDhAivFBAV8GfSC8EDgJJTXPAaPGkd8fd9miCW42k G4vLN27TcS2opfKCw1NxtrWrg8WSNtuQGQLQoY+PHZZr+l0jghsum0QjHg3gcm2b 3AMJWv8ZVw33l9Kf5YMM3Ox+wvvg/3jYst1DlwmW+fWfz2+yDrly1ndZ8Fnig/KD TBeegGDmDFHCj43zKessj+jmbggDdeT5zBKi9bdc5PNkEAhAOJVIKx6uGQl/k+4F D2TxqALotUZ157zx7boaVAE634bJ2ZoUBXUGCtXftNR7dgriqNJO471a82SxDSw2 ZSRPUyL+NGPz5TCjKoiPLz7C46MDxCyTkxVaVyRuZdhaYTymvvwyu8YOzZW9HXZf 5K/MPU66kqJxvDPxjqcG0cU2+SMB6W9GHzBtUeWk8HSMsoZ1WNeByrGH8HBlTRvf a0qz2JAyEsQ= =/Yyx -----END PGP SIGNATURE-----