RHSA-2015:1643Medium

Red Hat Security Advisory: kernel security and bug fix update

Published
August 18, 2015
Last Modified
November 5, 2026

🔗 CVE IDs covered (1)

CVE-2015-3636 →

📋 Description

CVE-2015-3636 — kernel: ping sockets: use-after-free leading to local privilege escalation

🎯 Affected products23

  • Red Hat Enterprise Linux Server AUS (v. 6.4)
  • Red Hat Enterprise Linux Server Optional AUS (v. 6.4)
  • kernel-0:2.6.32-358.65.1.el6.src as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • kernel-0:2.6.32-358.65.1.el6.src as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.4)
  • kernel-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • kernel-debug-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • kernel-debug-debuginfo-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • kernel-debug-debuginfo-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.4)
  • kernel-debug-devel-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • kernel-debuginfo-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • kernel-debuginfo-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.4)
  • kernel-debuginfo-common-x86_64-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • kernel-debuginfo-common-x86_64-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.4)
  • kernel-devel-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • kernel-doc-0:2.6.32-358.65.1.el6.noarch as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • kernel-firmware-0:2.6.32-358.65.1.el6.noarch as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • kernel-headers-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • perf-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • perf-debuginfo-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • perf-debuginfo-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.4)
  • python-perf-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.4)
  • python-perf-debuginfo-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server AUS (v. 6.4)
  • python-perf-debuginfo-0:2.6.32-358.65.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional AUS (v. 6.4)

✅ 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 (4)