- Issued:
- 2017-09-26
- Updated:
- 2017-09-26
RHSA-2017:2793 - Important: kernel security update
Synopsis
Important: kernel security update
Type/Severity
Security Advisory Important
Topic
An update for kernel is now available for Red Hat Enterprise Linux 7.3 Extended Update Support.
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.
Description
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
- A flaw was found in the way the Linux kernel loaded ELF executables. Provided that an application was built as Position Independent Executable (PIE), the loader could allow part of that application's data segment to map over the memory area reserved for its stack, potentially resulting in memory corruption. An unprivileged local user with access to SUID (or otherwise privileged) PIE binary could use this flaw to escalate their privileges on the system. (CVE-2017-1000253, Important)
Red Hat would like to thank Qualys Research Labs for reporting this issue.
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.
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 7.3 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 7.3 | x86_64 |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 7.3 | ppc64le |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 7.3 | ppc64 |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 7.3 | s390x |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 7.3 | ppc64le |
| Red Hat Enterprise Linux Server - TUS | 7.3 | x86_64 |
| Red Hat Enterprise Linux Server - AUS | 7.3 | x86_64 |
| Red Hat Enterprise Linux EUS Compute Node | 7.3 | x86_64 |
Updated Packages
- kernel-devel-3.10.0-514.32.3.el7.ppc64.rpm
- perf-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-3.10.0-514.32.3.el7.s390x.rpm
- python-perf-debuginfo-3.10.0-514.32.3.el7.s390x.rpm
- kernel-tools-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-debug-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-3.10.0-514.32.3.el7.src.rpm
- kernel-kdump-3.10.0-514.32.3.el7.s390x.rpm
- python-perf-debuginfo-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-tools-libs-3.10.0-514.32.3.el7.ppc64.rpm
- kernel-debug-debuginfo-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-devel-3.10.0-514.32.3.el7.s390x.rpm
- python-perf-debuginfo-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-debug-debuginfo-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-debug-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-tools-3.10.0-514.32.3.el7.ppc64.rpm
- kernel-debug-devel-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-debuginfo-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-tools-debuginfo-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-headers-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-debuginfo-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-tools-libs-devel-3.10.0-514.32.3.el7.ppc64.rpm
- kernel-debug-debuginfo-3.10.0-514.32.3.el7.s390x.rpm
- perf-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-headers-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-tools-debuginfo-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-abi-whitelists-3.10.0-514.32.3.el7.noarch.rpm
- kernel-kdump-devel-3.10.0-514.32.3.el7.s390x.rpm
- kernel-bootwrapper-3.10.0-514.32.3.el7.ppc64.rpm
- kernel-doc-3.10.0-514.32.3.el7.noarch.rpm
- perf-debuginfo-3.10.0-514.32.3.el7.s390x.rpm
- kernel-debug-3.10.0-514.32.3.el7.s390x.rpm
- kernel-tools-libs-devel-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-tools-libs-devel-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-3.10.0-514.32.3.el7.ppc64le.rpm
- perf-debuginfo-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-debug-debuginfo-3.10.0-514.32.3.el7.ppc64.rpm
- kernel-headers-3.10.0-514.32.3.el7.s390x.rpm
- kernel-tools-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-3.10.0-514.32.3.el7.ppc64.rpm
- kernel-debug-devel-3.10.0-514.32.3.el7.ppc64.rpm
- kernel-bootwrapper-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-debug-devel-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-kdump-debuginfo-3.10.0-514.32.3.el7.s390x.rpm
- kernel-tools-libs-3.10.0-514.32.3.el7.x86_64.rpm
- python-perf-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-debuginfo-common-x86_64-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-debuginfo-common-s390x-3.10.0-514.32.3.el7.s390x.rpm
- kernel-debuginfo-3.10.0-514.32.3.el7.ppc64.rpm
- kernel-tools-libs-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-debuginfo-common-ppc64-3.10.0-514.32.3.el7.ppc64.rpm
- python-perf-3.10.0-514.32.3.el7.ppc64.rpm
- kernel-debug-3.10.0-514.32.3.el7.ppc64.rpm
- kernel-debuginfo-3.10.0-514.32.3.el7.s390x.rpm
- perf-3.10.0-514.32.3.el7.ppc64.rpm
- perf-debuginfo-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-debuginfo-common-ppc64le-3.10.0-514.32.3.el7.ppc64le.rpm
- python-perf-3.10.0-514.32.3.el7.ppc64le.rpm
- python-perf-3.10.0-514.32.3.el7.s390x.rpm
- python-perf-debuginfo-3.10.0-514.32.3.el7.ppc64.rpm
- perf-debuginfo-3.10.0-514.32.3.el7.ppc64.rpm
- perf-3.10.0-514.32.3.el7.s390x.rpm
- kernel-devel-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-headers-3.10.0-514.32.3.el7.ppc64.rpm
- kernel-3.10.0-514.32.3.el7.x86_64.rpm
- kernel-debug-devel-3.10.0-514.32.3.el7.s390x.rpm
- kernel-devel-3.10.0-514.32.3.el7.ppc64le.rpm
- kernel-tools-debuginfo-3.10.0-514.32.3.el7.ppc64.rpm
Fixes
CVEs
References
- https://access.redhat.com/security/updates/classification/#important
- This content is not included.This content is not included.https://access.redhat.com/security/vulnerabilities/3189592
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.