Synopsis
Important: kernel security and bug fix update
Type/Severity
Security Advisory: Important
Topic
An update for kernel is now available for Red Hat Enterprise Linux 7.7 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):
- kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c (CVE-2020-12653)
- kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c (CVE-2020-12654)
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: provide infrastructure to support dual-signing of the kernel (foundation to help address CVE-2020-10713) (BZ#1837428)
- RHEL7.7 - Request: retrofit kernel commit f82b4b6 to RHEL 7.7/7.8 3.10 kernels. (BZ#1838601)
- Possible race condition updating the cfg structure in __assign_irq_vector. (BZ#1854553)
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
-
Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.7 x86_64
-
Red Hat Enterprise Linux Server - AUS 7.7 x86_64
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.7 s390x
-
Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.7 ppc64
-
Red Hat Enterprise Linux EUS Compute Node 7.7 x86_64
-
Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.7 ppc64le
-
Red Hat Enterprise Linux Server - TUS 7.7 x86_64
-
Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.7 ppc64le
-
Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.7 x86_64
Fixes
- BZ - 1831868 - CVE-2020-12653 kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c
- BZ - 1832530 - CVE-2020-12654 kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c
CVEs
References
Vulmon