RHSA-2015:1534Medium

Red Hat Security Advisory: kernel security and bug fix update

Published
August 6, 2015
Last Modified
November 7, 2026

🔗 CVE IDs covered (4)

CVE-2014-9715 →CVE-2015-2666 →CVE-2015-2922 →CVE-2015-3636 →

📋 Description

CVE-2014-9715 — kernel: netfilter connection tracking extensions denial of service CVE-2015-2666 — kernel: execution in the early microcode loader CVE-2015-2922 — kernel: denial of service (DoS) attack against IPv6 network stacks due to improper handling of Router Advertisements. CVE-2015-3636 — kernel: ping sockets: use-after-free leading to local privilege escalation

🎯 Affected products178

  • Red Hat Enterprise Linux Client (v. 7)
  • Red Hat Enterprise Linux Client Optional (v. 7)
  • Red Hat Enterprise Linux ComputeNode (v. 7)
  • Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • Red Hat Enterprise Linux Server (v. 7)
  • Red Hat Enterprise Linux Server Optional (v. 7)
  • Red Hat Enterprise Linux Workstation (v. 7)
  • Red Hat Enterprise Linux Workstation Optional (v. 7)
  • kernel-0:3.10.0-229.11.1.ael7b.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)
  • kernel-0:3.10.0-229.11.1.ael7b.src as a component of Red Hat Enterprise Linux Server (v. 7)
  • kernel-0:3.10.0-229.11.1.el7.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)
  • kernel-0:3.10.0-229.11.1.el7.s390x as a component of Red Hat Enterprise Linux Server (v. 7)
  • kernel-0:3.10.0-229.11.1.el7.src as a component of Red Hat Enterprise Linux Client (v. 7)
  • kernel-0:3.10.0-229.11.1.el7.src as a component of Red Hat Enterprise Linux ComputeNode (v. 7)
  • kernel-0:3.10.0-229.11.1.el7.src as a component of Red Hat Enterprise Linux Server (v. 7)
  • kernel-0:3.10.0-229.11.1.el7.src as a component of Red Hat Enterprise Linux Workstation (v. 7)
  • kernel-0:3.10.0-229.11.1.el7.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)
  • kernel-0:3.10.0-229.11.1.el7.x86_64 as a component of Red Hat Enterprise Linux ComputeNode (v. 7)
  • kernel-0:3.10.0-229.11.1.el7.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)
  • kernel-0:3.10.0-229.11.1.el7.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)
  • kernel-abi-whitelists-0:3.10.0-229.11.1.ael7b.noarch as a component of Red Hat Enterprise Linux Server (v. 7)
  • kernel-abi-whitelists-0:3.10.0-229.11.1.el7.noarch as a component of Red Hat Enterprise Linux Client (v. 7)
  • kernel-abi-whitelists-0:3.10.0-229.11.1.el7.noarch as a component of Red Hat Enterprise Linux ComputeNode (v. 7)
  • kernel-abi-whitelists-0:3.10.0-229.11.1.el7.noarch as a component of Red Hat Enterprise Linux Server (v. 7)
  • kernel-abi-whitelists-0:3.10.0-229.11.1.el7.noarch as a component of Red Hat Enterprise Linux Workstation (v. 7)
  • kernel-bootwrapper-0:3.10.0-229.11.1.ael7b.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)
  • kernel-bootwrapper-0:3.10.0-229.11.1.el7.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)
  • kernel-debug-0:3.10.0-229.11.1.ael7b.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)
  • kernel-debug-0:3.10.0-229.11.1.el7.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)
  • kernel-debug-0:3.10.0-229.11.1.el7.s390x as a component of Red Hat Enterprise Linux Server (v. 7)
  • +148 more not shown

✅ Remediation

Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 Workaround: You can check whether ping socket functionality is enabled by examining the net.ipv4.ping_group_range sysctl value: ~]# sysctl net.ipv4.ping_group_range net.ipv4.ping_group_range = 1 0 "1 0" is the default value and disables the ping socket functionality even for root user. Any other value means that the ping socket functionality might be enabled for certain users on the system. To mitigate this vulnerability make sure that you either allow the functionality to trusted local users (groups) only or set the net.ipv4.ping_group_range sysctl to the default and disabled state: ~]# sysctl net.ipv4.ping_group_range="1 0" Please note that this might prevent some programs relying on this functionality from functioning properly.

🔗 References (8)