Issued:
2020-01-21
Updated:
2020-01-21

RHSA-2020:0174 - Important: kernel-alt security and bug fix update

Synopsis

Important: kernel-alt security and bug fix update

Type/Severity

Security Advisory Important

Topic

An update for kernel-alt is now available for Red Hat Enterprise Linux 7.

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-alt packages provide the Linux kernel version 4.x.

Security Fix(es):

  • Kernel: speculative bounds check bypass store (CVE-2018-3693)

  • kernel: Use-after-free due to race condition in AF_PACKET implementation (CVE-2018-18559)

  • kernel: Heap overflow in mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c (CVE-2019-3846)

  • kernel: af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr (CVE-2019-8912)

  • kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c (CVE-2019-10126)

  • kernel: Count overflow in FUSE request leading to use-after-free issues. (CVE-2019-11487)

  • kernel: heap overflow in mwifiex_update_vs_ie() function of Marvell WiFi driver (CVE-2019-14816)

  • kernel: buffer overflow in cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c (CVE-2019-17133)

  • kernel: heap overflow in mwifiex_set_uap_rates() function of Marvell Wifi Driver leading to DoS (CVE-2019-14814)

  • kernel: heap-overflow in mwifiex_set_wmm_params() function of Marvell WiFi driver leading to DoS (CVE-2019-14815)

  • kernel: (powerpc) incomplete Spectre-RSB mitigation leads to information exposure (CVE-2019-18660)

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):

  • Kernel panic on job cleanup, related to SyS_getdents64 (BZ#1702057)

  • Kernel modules generated incorrectly when system is localized to non-English language (BZ#1705285)

  • RHEL-Alt-7.6 - Fixup tlbie vs store ordering issue on POWER9 (BZ#1756270)

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

ProductVersionArch
Red Hat Enterprise Linux for Power 97ppc64le
Red Hat Enterprise Linux for IBM System z (Structure A)7s390x
Red Hat Enterprise Linux for ARM 647aarch64

Updated Packages

  • kernel-debug-debuginfo-4.14.0-115.17.1.el7a.aarch64.rpm
  • perf-4.14.0-115.17.1.el7a.aarch64.rpm
  • kernel-headers-4.14.0-115.17.1.el7a.aarch64.rpm
  • kernel-kdump-4.14.0-115.17.1.el7a.s390x.rpm
  • perf-debuginfo-4.14.0-115.17.1.el7a.ppc64le.rpm
  • python-perf-4.14.0-115.17.1.el7a.s390x.rpm
  • kernel-bootwrapper-4.14.0-115.17.1.el7a.ppc64le.rpm
  • python-perf-debuginfo-4.14.0-115.17.1.el7a.ppc64le.rpm
  • kernel-alt-4.14.0-115.17.1.el7a.src.rpm
  • kernel-4.14.0-115.17.1.el7a.ppc64le.rpm
  • kernel-tools-debuginfo-4.14.0-115.17.1.el7a.ppc64le.rpm
  • kernel-debuginfo-4.14.0-115.17.1.el7a.s390x.rpm
  • kernel-debug-devel-4.14.0-115.17.1.el7a.ppc64le.rpm
  • kernel-debug-devel-4.14.0-115.17.1.el7a.s390x.rpm
  • kernel-debuginfo-common-aarch64-4.14.0-115.17.1.el7a.aarch64.rpm
  • kernel-debuginfo-4.14.0-115.17.1.el7a.aarch64.rpm
  • kernel-doc-4.14.0-115.17.1.el7a.noarch.rpm
  • kernel-tools-debuginfo-4.14.0-115.17.1.el7a.aarch64.rpm
  • kernel-4.14.0-115.17.1.el7a.aarch64.rpm
  • kernel-kdump-debuginfo-4.14.0-115.17.1.el7a.s390x.rpm
  • kernel-debug-debuginfo-4.14.0-115.17.1.el7a.ppc64le.rpm
  • kernel-debuginfo-common-ppc64le-4.14.0-115.17.1.el7a.ppc64le.rpm
  • kernel-devel-4.14.0-115.17.1.el7a.ppc64le.rpm
  • kernel-devel-4.14.0-115.17.1.el7a.s390x.rpm
  • kernel-headers-4.14.0-115.17.1.el7a.ppc64le.rpm
  • kernel-debug-4.14.0-115.17.1.el7a.ppc64le.rpm
  • perf-debuginfo-4.14.0-115.17.1.el7a.s390x.rpm
  • kernel-debug-4.14.0-115.17.1.el7a.aarch64.rpm
  • kernel-tools-libs-4.14.0-115.17.1.el7a.aarch64.rpm
  • perf-4.14.0-115.17.1.el7a.s390x.rpm
  • kernel-tools-libs-devel-4.14.0-115.17.1.el7a.aarch64.rpm
  • perf-debuginfo-4.14.0-115.17.1.el7a.aarch64.rpm
  • kernel-4.14.0-115.17.1.el7a.s390x.rpm
  • kernel-debug-4.14.0-115.17.1.el7a.s390x.rpm
  • kernel-kdump-devel-4.14.0-115.17.1.el7a.s390x.rpm
  • kernel-tools-libs-devel-4.14.0-115.17.1.el7a.ppc64le.rpm
  • python-perf-4.14.0-115.17.1.el7a.aarch64.rpm
  • kernel-debug-devel-4.14.0-115.17.1.el7a.aarch64.rpm
  • kernel-devel-4.14.0-115.17.1.el7a.aarch64.rpm
  • kernel-headers-4.14.0-115.17.1.el7a.s390x.rpm
  • python-perf-4.14.0-115.17.1.el7a.ppc64le.rpm
  • kernel-tools-4.14.0-115.17.1.el7a.ppc64le.rpm
  • kernel-tools-libs-4.14.0-115.17.1.el7a.ppc64le.rpm
  • python-perf-debuginfo-4.14.0-115.17.1.el7a.aarch64.rpm
  • python-perf-debuginfo-4.14.0-115.17.1.el7a.s390x.rpm
  • kernel-debug-debuginfo-4.14.0-115.17.1.el7a.s390x.rpm
  • kernel-abi-whitelists-4.14.0-115.17.1.el7a.noarch.rpm
  • kernel-tools-4.14.0-115.17.1.el7a.aarch64.rpm
  • kernel-debuginfo-4.14.0-115.17.1.el7a.ppc64le.rpm
  • perf-4.14.0-115.17.1.el7a.ppc64le.rpm
  • kernel-debuginfo-common-s390x-4.14.0-115.17.1.el7a.s390x.rpm

Fixes

CVEs

References

Additional information