RHEL 6:MRG (RHSA-2017:2669)

high Nessus 插件 ID 103046

简介

远程 Red Hat 主机缺少一个或多个安全更新。

描述

kernel-rt 的更新现在可用于 Red Hat Enterprise MRG 2。Red Hat 产品安全团队将此更新评级为具有重要安全影响。可从“参考”部分中的 CVE 链接获取通用漏洞评分系统 (CVSS) 基本分数,其针对每个漏洞给出了详细的严重性等级。kernel-rt 程序包提供实时 Linux 内核,其可针对具有极高确定性需求的系统启用微调。安全修复:* 版本 v3.14-rc1 至 v4.12 的 Linux 内核中发现争用条件。在对同一文件运行重命名操作时,线程 inotify_handle_event() 与 vfs_rename() 之间出现争用。争用导致下一 slab 数据或 slab 的空闲列表指针遭到攻击者控制数据的破坏,进而导致权限提升。(CVE-2017-7533,重要)* 已发现 Linux 内核中的 NFSv4 服务器在处理 NFSv4 pNFS LAYOUTGET 和 GETDEVICEINFO 操作数时,未正确验证布局类型。远程攻击者可利用此缺陷使系统发生软死锁,并导致拒绝服务。(CVE-2017-8797,重要)此更新也会修复多个中等和低危影响的安全问题:CVE-2017-8797 CVE-2015-8839 CVE-2016-9576 CVE-2016-7042 CVE-2016-7097 CVE-2016-8645 CVE-2016-9576 CVE-2016-9806 CVE-2016-10088 CVE-2017-2671 CVE-2017-5970 CVE-2017-6001 CVE-2017-6951 CVE-2017-7187 CVE-2017-7889 CVE-2017-8890 CVE-2017-9074 CVE-2017-8890 CVE-2017-9075 CVE-2017-8890 CVE-2017-9076 CVE-2017-8890 CVE-2017-9077 CVE-2016-9604 CVE-2016-9685 “参考”部分链接的技术札记文档中提供这些问题的文档。Red Hat 在此感谢 Leilei Lin (Alibaba Group)、Fan Wu (The University of Hong Kong) 和 Shixiong Zhao (The University of Hong Kong) 报告 CVE-2017-7533,以及 Marco Grassi 报告 CVE-2016-8645。CVE-2016-7042 问题由 Ondrej Kozina (Red Hat) 发现;CVE-2016-7097 问题由 Andreas Gruenbacher (Red Hat) 和 Jan Kara (SUSE) 发现;CVE-2016-9604 问题由 David Howells (Red Hat) 发现;以及 CVE-2016-9685 问题由 Qian Cai (Red Hat) 发现。

解决方案

更新受影响的程序包。

另见

https://access.redhat.com/articles/3173821

https://access.redhat.com/errata/RHSA-2017:2669

https://access.redhat.com/security/cve/cve-2015-8839

https://access.redhat.com/security/cve/cve-2016-7042

https://access.redhat.com/security/cve/cve-2016-7097

https://access.redhat.com/security/cve/cve-2016-8645

https://access.redhat.com/security/cve/cve-2016-9576

https://access.redhat.com/security/cve/cve-2016-9604

https://access.redhat.com/security/cve/cve-2016-9685

https://access.redhat.com/security/cve/cve-2016-9806

https://access.redhat.com/security/cve/cve-2016-10088

https://access.redhat.com/security/cve/cve-2016-10741

https://access.redhat.com/security/cve/cve-2017-2671

https://access.redhat.com/security/cve/cve-2017-5551

https://access.redhat.com/security/cve/cve-2017-5970

https://access.redhat.com/security/cve/cve-2017-6001

https://access.redhat.com/security/cve/cve-2017-6951

https://access.redhat.com/security/cve/cve-2017-7187

https://access.redhat.com/security/cve/cve-2017-7495

https://access.redhat.com/security/cve/cve-2017-7533

https://access.redhat.com/security/cve/cve-2017-7889

https://access.redhat.com/security/cve/cve-2017-8797

https://access.redhat.com/security/cve/cve-2017-8890

https://access.redhat.com/security/cve/cve-2017-9074

https://access.redhat.com/security/cve/cve-2017-9075

https://access.redhat.com/security/cve/cve-2017-9076

https://access.redhat.com/security/cve/cve-2017-9077

插件详情

严重性: High

ID: 103046

文件名: redhat-RHSA-2017-2669.nasl

版本: 3.13

类型: local

代理: unix

发布时间: 2017/9/8

最近更新时间: 2019/10/24

支持的传感器: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

风险信息

VPR

风险因素: Medium

分数: 6.7

CVSS v2

风险因素: High

基本分数: 7.8

时间分数: 6.1

矢量: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS v3

风险因素: High

基本分数: 7.8

时间分数: 7

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

时间矢量: CVSS:3.0/E:P/RL:O/RC:C

漏洞信息

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-rt-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debuginfo-common-x86_64, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-doc, p-cpe:/a:redhat:enterprise_linux:kernel-rt-firmware, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla, p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla-devel, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel

必需的 KB 项: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

可利用: true

易利用性: Exploits are available

补丁发布日期: 2017/9/6

漏洞发布日期: 2016/5/2

参考资料信息

CVE: CVE-2015-8839, CVE-2016-10088, CVE-2016-10741, CVE-2016-7042, CVE-2016-7097, CVE-2016-8645, CVE-2016-9576, CVE-2016-9604, CVE-2016-9685, CVE-2016-9806, CVE-2017-2671, CVE-2017-5551, CVE-2017-5970, CVE-2017-6001, CVE-2017-6951, CVE-2017-7187, CVE-2017-7495, CVE-2017-7533, CVE-2017-7889, CVE-2017-8797, CVE-2017-8890, CVE-2017-9074, CVE-2017-9075, CVE-2017-9076, CVE-2017-9077

RHSA: 2017:2669