Detections
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Oracle Linux 6 : kernel (ELSA-2019-1488)

high Nessus Plugin ID 126023

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Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-1488 advisory.

 - [net] tcp: enforce tcp_min_snd_mss in tcp_mtu_probing() (Florian Westphal) [1719614] {CVE-2019-11479}
 - [net] tcp: add tcp_min_snd_mss sysctl (Florian Westphal) [1719614] {CVE-2019-11479}
 - [net] tcp: tcp_fragment() should apply sane memory limits (Florian Westphal) [1719840] {CVE-2019-11478}
 - [net] tcp: limit payload size of sacked skbs (Florian Westphal) [1719585] {CVE-2019-11477}
 - [net] tcp: pass previous skb to tcp_shifted_skb() (Florian Westphal) [1719585] {CVE-2019-11477}
 - [lib] idr: free the top layer if idr tree has the maximum height (Denys Vlasenko) [1698139] {CVE-2019-3896}
 - [lib] idr: fix top layer handling (Denys Vlasenko) [1698139] {CVE-2019-3896}
 - [lib] idr: fix backtrack logic in idr_remove_all (Denys Vlasenko) [1698139] {CVE-2019-3896}
 - [x86] x86/speculation/mds: Add SMT warning message (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Add mds=full, nosmt cmdline option (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation: Remove redundant arch_smt_update() invocation (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/spec_ctrl: Add debugfs x86/smt_present file (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/spec_ctrl: Update MDS mitigation status after late microcode load (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [documentation] Documentation: Add MDS vulnerability documentation (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [documentation] Documentation: Move L1TF to separate directory (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Add mitigation mode VMWERV (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Add sysfs reporting for MDS (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Add mitigation control for MDS (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Conditionally clear CPU buffers on idle entry (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [kvm] x86/kvm/vmx: Add MDS protection when L1D Flush is not active (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Clear CPU buffers on exit to user (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Add mds_clear_cpu_buffers() (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [kvm] x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Add BUG_MSBDS_ONLY (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Add basic bug infrastructure for MDS (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation: Consolidate CPU whitelists (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/l1tf: Show actual SMT state (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation: Simplify sysfs report of VMX L1TF vulnerability (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/cpu: Sanitize FAM6_ATOM naming (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [kernel] sched/smt: Provide sched_smt_active() (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation: Provide arch_smt_update() (Waiman Long) [1692386 1692387 1692388] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2019-1488.html

Plugin Details

Severity: High

ID: 126023

File Name: oraclelinux_ELSA-2019-1488.nasl

Version: 1.10

Type: local

Agent: unix

Published: 6/19/2019

Updated: 10/22/2024

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2019-3896

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-abi-whitelists, p-cpe:/a:oracle:linux:kernel-devel, p-cpe:/a:oracle:linux:perf, p-cpe:/a:oracle:linux:kernel-firmware, p-cpe:/a:oracle:linux:python-perf, p-cpe:/a:oracle:linux:kernel-debug-devel, p-cpe:/a:oracle:linux:kernel-debug, p-cpe:/a:oracle:linux:kernel-headers, p-cpe:/a:oracle:linux:kernel, cpe:/o:oracle:linux:6

Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Ease: No known exploits are available

Patch Publication Date: 6/18/2019

Vulnerability Publication Date: 6/13/2019

Reference Information

CVE: CVE-2019-11477, CVE-2019-11478, CVE-2019-11479, CVE-2019-3896

RHSA: 2019:1488