RHSA-2020:0740 — Security Advisory

Red Hat Security Advisory: kernel-alt security and bug fix update

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Severity

Important

Red Hat Product Security

RHEL 7

Products

Official CSAF product identity

Published · March 9, 2020

Updated · November 2, 2026

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: rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel lacks a certain upper-bound check, leading to a buffer overflow (CVE-2019-17666)
kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence (CVE-2018-16871)
kernel: Heap address information leak while using L2CAP_GET_CONF_OPT (CVE-2019-3459)
kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP (CVE-2019-3460)
kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command (CVE-2019-11884)
kernel: powerpc: local user can read vector registers of other users' processes via a Facility Unavailable exception (CVE-2019-15030)
kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service (CVE-2019-15916)
kernel: integer overflow in tcp_ack_update_rtt in net/ipv4/tcp_input.c (CVE-2019-18805)

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):

lpfc: NVMe/FC target test machine rhel-storage-62 crashes on boot when connected to FC switch (BZ#1623205)
kernel BUG at fs/nfs_common/grace.c:107! (BZ#1637543)
RHEL-Alt-7.6 - Need a fix for kernel bug cap_inode_getsecurity: use d_find_any_alias() instead of d_find_alias() (BZ#1711934)
Backport "fs/dcache.c: add cond_resched() in shrink_dentry_list()" (32785c0539b7) [rhel-alt-7.6.z] (BZ#1758861)
[RHEL-ALT-7.6.z][arm64] iommu/iova: Fix tracking of recently failed iova address (BZ#1780500)