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SUSE: 2021:4057-1 Important ICMP Leak Fix in Linux Kernel

An update that fixes one vulnerability is now available. . SUSE Security Update: Security update for the Linux Kernel (Live Patch 37 for SLE 12 SP3) ______________________________________________________________________________ Announcement ID: SUSE-SU-2021:4057-1 Rating: important References: #1191813 Cross-References: CVE-2021-20322 CVSS scores: CVE-2021-20322 (SUSE): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Affected Products: SUSE Linux Enterprise Server for SAP 12-SP3 SUSE Linux Enterprise Server 12-SP3-LTSS ______________________________________________________________________________ An update that fixes one vulnerability is now available. Description: This update for the Linux Kernel 4.4.180-94_138 fixes one issue. The following security issue was fixed: - CVE-2021-20322: Make the ipv4 and ipv6 ICMP exception caches less predictive to avoid information leaks about UDP ports in use. (bsc#1191790) 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 for SAP 12-SP3: zypper in -t patch SUSE-SLE-SAP-12-SP3-2021-4053=1 SUSE-SLE-SAP-12-SP3-2021-4054=1 SUSE-SLE-SAP-12-SP3-2021-4055=1 SUSE-SLE-SAP-12-SP3-2021-4057=1 - SUSE Linux Enterprise Server 12-SP3-LTSS: zypper in -t patch SUSE-SLE-SERVER-12-SP3-2021-4053=1 SUSE-SLE-SERVER-12-SP3-2021-4054=1 SUSE-SLE-SERVER-12-SP3-2021-4055=1 SUSE-SLE-SERVER-12-SP3-2021-4057=1 Package List: - SUSE Linux Enterprise Server for SAP 12-SP3 (ppc64le x86_64): kgraft-patch-4_4_180-94_138-default-13-2.2 kgraft-patch-4_4_180-94_138-default-debuginfo-13-2.2 kgraft-patch-4_4_180-94_141-default-12-2.2 kgraft-patch-4_4_180-94_141-default-debuginfo-12-2.2 kgraft-patch-4_4_180-94_144-default-9-2.1 kgraft-patch-4_4_180-94_144-default-debuginfo-9-2.1 kgraft-patch-4_4_180-94_147-default-6-2.1 kgraft-patch-4_4_180-94_147-default-debuginfo-6-2.1 - SUSE Linux Enterprise Server 12-SP3-LTSS (ppc64le x86_64): kgraft-patch-4_4_180-94_138-default-13-2.2 kgraft-patch-4_4_180-94_138-default-debuginfo-13-2.2 kgraft-patch-4_4_180-94_141-default-12-2.2 kgraft-patch-4_4_180-94_141-default-debuginfo-12-2.2 kgraft-patch-4_4_180-94_144-default-9-2.1 kgraft-patch-4_4_180-94_144-default-debuginfo-9-2.1 kgraft-patch-4_4_180-94_147-default-6-2.1 kgraft-patch-4_4_180-94_147-default-debuginfo-6-2.1 References: https://www.suse.com/security/cve/CVE-2021-20322.html https://bugzilla.suse.com/1191813 . A recent patch for the Linux Kernel resolves a critical vulnerability concerning ICMP data exposure in SUSE Linux Enterprise Server.. SUSE Enterprise Security, Kernel Patch, ICMP Leak Fix, Security Updates, Live Patch. . Severity: Important. LinuxSecurity.com Team

Dec 14, 2021 •Important SuSE