Security update for Linux Kernel Live Patch 17 for SLE 12 SP1 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2017:2441-1 Final 1 1 2017-09-12T19:28:51Z current 2017-09-12T19:28:51Z 2017-09-12T19:28:51Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for Linux Kernel Live Patch 17 for SLE 12 SP1 This update for the Linux Kernel 3.12.74-60_64_48 fixes several issues. The following security bugs were fixed: - CVE-2017-1000112: Prevent a race condition in net-packet code that could have been exploited by unprivileged users to gain root access (bsc#1052368). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-SLE-SAP-12-SP1-2017-1509,SUSE-SLE-SERVER-12-SP1-2017-1509 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2017/suse-su-20172441-1/ Link for SUSE-SU-2017:2441-1 https://lists.suse.com/pipermail/sle-security-updates/2017-September/003206.html E-Mail link for SUSE-SU-2017:2441-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1052311 SUSE Bug 1052311 https://bugzilla.suse.com/1052368 SUSE Bug 1052368 https://www.suse.com/security/cve/CVE-2017-1000112/ SUSE CVE CVE-2017-1000112 page SUSE Linux Enterprise Server 12 SP1-LTSS SUSE Linux Enterprise Server for SAP Applications 12 SP1 kgraft-patch-3_12_74-60_64_48-default-3-2.1 kgraft-patch-3_12_74-60_64_48-xen-3-2.1 kgraft-patch-3_12_74-60_64_48-default-3-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_48-xen-3-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_48-default-3-2.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP1 kgraft-patch-3_12_74-60_64_48-xen-3-2.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP1 Linux kernel: Exploitable memory corruption due to UFO to non-UFO path switch. When building a UFO packet with MSG_MORE __ip_append_data() calls ip_ufo_append_data() to append. However in between two send() calls, the append path can be switched from UFO to non-UFO one, which leads to a memory corruption. In case UFO packet lengths exceeds MTU, copy = maxfraglen - skb->len becomes negative on the non-UFO path and the branch to allocate new skb is taken. This triggers fragmentation and computation of fraggap = skb_prev->len - maxfraglen. Fraggap can exceed MTU, causing copy = datalen - transhdrlen - fraggap to become negative. Subsequently skb_copy_and_csum_bits() writes out-of-bounds. A similar issue is present in IPv6 code. The bug was introduced in e89e9cf539a2 ("[IPv4/IPv6]: UFO Scatter-gather approach") on Oct 18 2005. CVE-2017-1000112 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_48-default-3-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_48-xen-3-2.1 SUSE Linux Enterprise Server for SAP Applications 12 SP1:kgraft-patch-3_12_74-60_64_48-default-3-2.1 SUSE Linux Enterprise Server for SAP Applications 12 SP1:kgraft-patch-3_12_74-60_64_48-xen-3-2.1 important 6.2 AV:L/AC:H/Au:N/C:C/I:C/A:C 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2017/suse-su-20172441-1/ https://www.suse.com/security/cve/CVE-2017-1000112.html CVE-2017-1000112 https://bugzilla.suse.com/1052311 SUSE Bug 1052311 https://bugzilla.suse.com/1052365 SUSE Bug 1052365 https://bugzilla.suse.com/1052368 SUSE Bug 1052368 https://bugzilla.suse.com/1072117 SUSE Bug 1072117 https://bugzilla.suse.com/1072162 SUSE Bug 1072162 https://bugzilla.suse.com/1115893 SUSE Bug 1115893