Executive Summary
Summary | |
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Title | kernel security and bug fix update |
Informations | |||
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Name | RHSA-2020:0103 | First vendor Publication | 2020-01-14 |
Vendor | RedHat | Last vendor Modification | 2020-01-14 |
Severity (Vendor) | N/A | Revision | 01 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:L/AC:M/Au:N/C:C/I:C/A:C) | |||
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Cvss Base Score | 6.9 | Attack Range | Local |
Cvss Impact Score | 10 | Attack Complexity | Medium |
Cvss Expoit Score | 3.4 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
Problem Description: An update for kernel is now available for Red Hat Enterprise Linux 7.4 Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended Update Support, and Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Server AUS (v. 7.4) - noarch, x86_64 Red Hat Enterprise Linux Server E4S (v. 7.4) - noarch, ppc64le, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - x86_64 Red Hat Enterprise Linux Server Optional E4S (v. 7.4) - ppc64le, x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 7.4) - x86_64 Red Hat Enterprise Linux Server TUS (v. 7.4) - noarch, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: Use-after-free in __blk_drain_queue() function in block/blk-core.c (CVE-2018-20856) * Kernel: KVM: potential use-after-free via kvm_ioctl_create_device() (CVE-2019-6974) * kernel: kvm: guest userspace to guest kernel write (CVE-2018-10853) * kernel: TLB flush happens too late on mremap (CVE-2018-18281) * kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599) 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): * guest softlockup in mem_cgroup_reparent_charges with 800GB guests (BZ#1770111) * [RHEL7.7] Refined TSC clocksource calibration occasionally fails on some SkyLake-X servers (BZ#1775682) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1589890 - CVE-2018-10853 kernel: kvm: guest userspace to guest kernel write 1645121 - CVE-2018-18281 kernel: TLB flush happens too late on mremap 1671913 - CVE-2019-6974 Kernel: KVM: potential use-after-free via kvm_ioctl_create_device() 1705937 - CVE-2019-11599 kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping 1738705 - CVE-2018-20856 kernel: Use-after-free in __blk_drain_queue() function in block/blk-core.c |
Original Source
Url : https://rhn.redhat.com/errata/RHSA-2020-0103.html |
CWE : Common Weakness Enumeration
% | Id | Name |
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33 % | CWE-416 | Use After Free |
17 % | CWE-667 | Insufficient Locking |
17 % | CWE-459 | Incomplete Cleanup |
17 % | CWE-362 | Race Condition |
17 % | CWE-269 | Improper Privilege Management |
CPE : Common Platform Enumeration
Nessus® Vulnerability Scanner
Date | Description |
---|---|
2019-01-03 | Name : The remote Fedora host is missing a security update. File : fedora_2018-f1b818a5c9.nasl - Type : ACT_GATHER_INFO |
2018-09-18 | Name : The remote EulerOS Virtualization host is missing a security update. File : EulerOS_SA-2018-1269.nasl - Type : ACT_GATHER_INFO |
2018-07-20 | Name : The remote Debian host is missing a security update. File : debian_DLA-1423.nasl - Type : ACT_GATHER_INFO |
2018-07-16 | Name : The remote Debian host is missing a security update. File : debian_DLA-1422.nasl - Type : ACT_GATHER_INFO |
2018-06-18 | Name : The remote Fedora host is missing a security update. File : fedora_2018-b57db4753c.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2020-03-19 13:19:49 |
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