Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20190813)

High Nessus Plugin ID 127880

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VPR Score: 6.9

Synopsis

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

Description

Security Fix(es) :

- Kernel: page cache side channel attacks (CVE-2019-5489)

- kernel: Salsa20 encryption algorithm does not correctly handle zero-length inputs allowing local attackers to cause denial-of-service (CVE-2017-17805)

- kernel: Unprivileged users able to inspect kernel stacks of arbitrary tasks (CVE-2018-17972)

- kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es) :

- OOPS with NULL pointer exception in v4l2_ctrl_query_menu when second arg of function is NULL (BZ#1647975)

- Another RHEL 6 hang in congestion_wait() (BZ#1658254)

- kernel crash after running user space script (BZ#1663262)

- RHEL-6.10: Don't report the use of retpoline on Skylake as vulnerable (BZ#1666102)

- Bad pagetable: 000f “*pdpt = 0000000000000000 *pde = 0000000000000000” RHEL 6 32bit (BZ#1702782)

- fs/binfmt_misc.c: do not allow offset overflow [6.10.z] (BZ#1710149)

- Wrong spectre backport causing linux headers to break compilation of 3rd party packages (BZ#1722185)

Solution

Update the affected packages.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=1647975

https://bugzilla.redhat.com/show_bug.cgi?id=1658254

https://bugzilla.redhat.com/show_bug.cgi?id=1663262

https://bugzilla.redhat.com/show_bug.cgi?id=1666102

https://bugzilla.redhat.com/show_bug.cgi?id=1702782

https://bugzilla.redhat.com/show_bug.cgi?id=1710149

https://bugzilla.redhat.com/show_bug.cgi?id=1722185

http://www.nessus.org/u?612605fd

Plugin Details

Severity: High

ID: 127880

File Name: sl_20190813_kernel_on_SL6_x.nasl

Version: 1.4

Type: local

Agent: unix

Published: 2019/08/14

Updated: 2020/02/24

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 6.9

CVSS v2.0

Base Score: 7.2

Temporal Score: 5.6

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

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3.0

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:kernel, p-cpe:/a:fermilab:scientific_linux:kernel-abi-whitelists, p-cpe:/a:fermilab:scientific_linux:kernel-debug, p-cpe:/a:fermilab:scientific_linux:kernel-debug-debuginfo, p-cpe:/a:fermilab:scientific_linux:kernel-debug-devel, p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo, p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo-common-i686, p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo-common-x86_64, p-cpe:/a:fermilab:scientific_linux:kernel-devel, p-cpe:/a:fermilab:scientific_linux:kernel-doc, p-cpe:/a:fermilab:scientific_linux:kernel-firmware, p-cpe:/a:fermilab:scientific_linux:kernel-headers, p-cpe:/a:fermilab:scientific_linux:perf, p-cpe:/a:fermilab:scientific_linux:perf-debuginfo, p-cpe:/a:fermilab:scientific_linux:python-perf, p-cpe:/a:fermilab:scientific_linux:python-perf-debuginfo, x-cpe:/o:fermilab:scientific_linux

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2019/08/13

Vulnerability Publication Date: 2017/12/20

Reference Information

CVE: CVE-2017-17805, CVE-2018-17972, CVE-2019-1125, CVE-2019-5489