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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.3897 gdm3 security update 6 November 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: gdm3 Publisher: Debian Operating System: Debian GNU/Linux UNIX variants (UNIX, Linux, OSX) Impact/Access: Increased Privileges -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-16125 Original Bulletin: https://lists.debian.org/debian-lts-announce/2020/11/msg00008.html Comment: This advisory references vulnerabilities in products which run on platforms other than Debian. It is recommended that administrators running gdm3 check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 - - ------------------------------------------------------------------------- Debian LTS Advisory DLA-2434-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Chris Lamb November 05, 2020 https://wiki.debian.org/LTS - - ------------------------------------------------------------------------- Package : gdm3 Version : 3.22.3-3+deb9u3 CVE ID : CVE-2020-16125 It was discovered that there was an issue in the GNOME Display Manager where not detecting any users may make GDM launch initial system setup and thereby permitting the creation of new users with sudo capabilities. For Debian 9 "Stretch", this problem has been fixed in version 3.22.3-3+deb9u3. We recommend that you upgrade your gdm3 packages. For the detailed security status of gdm3 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/gdm3 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----- iQIzBAEBCAAdFiEEwv5L0nHBObhsUz5GHpU+J9QxHlgFAl+j8rsACgkQHpU+J9Qx Hljeog//ZTK44Zuekxc9M4SWAApheYHP5ZggRd4YOUgx3HHpEnePF1ipckWdU6BX /skk/aKqiyhRU0fksSpF12bwhGlvmhSp0xeR7W6jTaTUaYBgaXgKf+4KQ538yN3z thp3L9aaRl2EwRVAhFPi63aMYuL44MkhOYkKEjeVAPJCCZG8M5xCsudrOWtgL7vP sAUNraoEA6MsXcfvkgvEZhuEaoRIAdcxTpA5+Pp1119LQMn24luV3h4rRJ/PHSWW X1kw8rRXHSMLz0WNSMtwSmfUnpYW4egys46M38e1hfms34gOsTn9Gq0kVtMCHuPh U7zU4qrlzmoWrpD6XphCWv9UQm8r8LVKE0HXVVZMCzMqkNkMOD7p95J8ePwj9lwE DZTVn5a0bhjufErzGEx07H910a6+utDwJDcDgdcoLGoYokZxwZ7yHQRBWVYVQzdb IggvmCBNAmfOzrca1vyxlt9qwhvv16el+sskRxSu99Gwryk9c+Qn/8Fq5cKe0W85 JFpWG24UCTNa8xloRcJP+r+foIItGiddAhe9g+NgPI+MxivxgxwU6uRfoUD0Xhm5 QT4fFw6mX3tnWBOliOgA5Wywl541ehF5KFlc6HRyAxad2T5/+J86xdU7THsjbHGU E78IaafxB0Ue6RXECDTsbghX3PefwUlPhBAkTx0lgFwo4KuYtbg= =LFOf - -----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 iQIVAwUBX6S6M+NLKJtyKPYoAQit0g/+KYqf2h/+nUQi2s3pS/tV4APmO5l7X/bm 578pqTsxIihAsm9jKZBXzd5AwosDCcZikln6TrLtJgumLRDZyIjG5m+I9b51DDGS 9UkKFtNZENUuwH5saWzWpb6ZetvbGM73FUhEJMcPVb4mtsMX+EpGPNwyTvry8dnM nI1tn3vnLkXzHL509Ys0OSvr1Ht9QQ/6TzswqdoTyitJ8qXW+CcVw54OKijnlxxO FIcHXf701OxEPIMVqq8f7IRbcz7+srN6WttCHc7/JEmPgq1JXahy1oxUrmi7+BgF BO1doIeUhNFRPP/qNl82xJOhnZ4gZMO4lXUQvSYhteYhMvsfns11zb6opqDP8vdL 0UdEopWyPbaShOQA6f2vsornytnNoCIsNxEjwjMeYyF7DyfSH6bCoTd0HyIGaVhx HhB32vwePnXGO30oMbkK3zIT6PecMUXwZVZARPJ+L343wkVxFmhmHZrp3Qb9pVi3 vSpp0PoGeSUcDk8dvsRF/FGJLQAiFz0Zb8uVr2NhBrxxfyWogq0fVsJ/92xXhm+q Fh0qDf9ufZrQLocA26JA+OExPb3QKG4QpyRDAwLezqUT90drfGLwcE2IGOFEKEvF EH52n47pu8yoYJV1NUQq5gZkVKAJ0aMiNej8wfvFDDxWit3M2xnaDLEA31Lw86ou lCsOjzTxB68= =iP/k -----END PGP SIGNATURE-----