23 October 2018
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3230 SUSE Security Update: Security update for the Linux Kernel (Live Patch 38 for SLE 12) 23 October 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel Publisher: SUSE Operating System: SUSE Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Denial of Service -- Existing Account Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-14633 CVE-2018-5390 Reference: ASB-2018.0222 ASB-2018.0221 ESB-2018.3140 ESB-2018.3136 ESB-2018.3130 ESB-2018.3044 ESB-2018.2959 - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for the Linux Kernel (Live Patch 38 for SLE 12) ______________________________________________________________________________ Announcement ID: SUSE-SU-2018:3265-1 Rating: important References: #1102682 #1107832 Cross-References: CVE-2018-14633 CVE-2018-5390 Affected Products: SUSE Linux Enterprise Server 12-LTSS ______________________________________________________________________________ An update that fixes two vulnerabilities is now available. Description: This update for the Linux Kernel 3.12.61-52_146 fixes several issues. The following security issues were fixed: - CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. (bsc#1107832). - CVE-2018-5390: The Linux kernel could be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service (bsc#1102682). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Server 12-LTSS: zypper in -t patch SUSE-SLE-SERVER-12-2018-2355=1 Package List: - SUSE Linux Enterprise Server 12-LTSS (x86_64): kgraft-patch-3_12_61-52_146-default-2-2.1 kgraft-patch-3_12_61-52_146-xen-2-2.1 References: https://www.suse.com/security/cve/CVE-2018-14633.html https://www.suse.com/security/cve/CVE-2018-5390.html https://bugzilla.suse.com/1102682 https://bugzilla.suse.com/1107832 - --------------------------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 firstname.lastname@example.org and we will forward your request to the appropriate person. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBW86ypGaOgq3Tt24GAQg0Mg/+PhZjkZcV5chLadKbh1VM/0C2yMgqGMmq 0Ajgq711DIYYh1pcVc19POPHlNIKvBxab6sTIaxWU1iuYJS0KYj7xArjzPcldviA hPlOVuwPDuoDVHV+K5sxOCFEGVIBGnnRGyw1P4nRam9CZunXiHhgSEaeo6XCZo2t JAm8ZpUacKvB9OgnkcROYiZmbkJQQIgL/OEoyjIFUVFxHyKjxa92AyHeC+WMFqnE PQ8ifqJrmbCYPwpAEwjk475HeUHxye9BZLfQ1cBZYU6gybUhNj58ZAKnGvqY7sA5 mq3Kf1ma7jWToKYtaCxSI5xjVWHL580XssyW+5n+oQwjhTioMOFXWv1RUmCORCOw pN8/6T+pBKoADuUTta7FoST3tRDqSaBwa4n1LX0WpZofFi8eBwnJi/3n1/rjxLqH LUeDfEZ3BHuRY2ZOQkfTtUh7lD3nhBt+W6SrW2mWQRTuwD+n50Bn30KfqLYA3rM3 Z8NqFnFa+1PgANSo5dyaePNrcZbsTjRbMiPnSXpvYU39RmDNUn9kVN5NJU7FclrM ySbckFgKHVtHZ9JKWDcjABIl0tYEW205V0Bqg6Yha8kLO1gpeSAtXTAyzsOuNLKx RGltNq71OyG2ECYQCf6+2RWPvOaB0HqtadX4Rm8eoCdI7K7ZaYrEcjO9ofrQ0a3o HgfAGbtpuzo= =Wubs -----END PGP SIGNATURE-----