Issued:
2020-03-31
Updated:
2020-03-31

RHSA-2020:1070 - Security Advisory

Synopsis

Moderate: kernel-rt security and bug fix update

Type/Severity

Security Advisory: Moderate

Topic

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

Red Hat Product Security has rated this update as having a security impact of Moderate. 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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • kernel: out of bound read in DVB connexant driver. (CVE-2015-9289)
  • kernel: Missing permissions check for request_key() destination allows local attackers to add keys to keyring without Write permission (CVE-2017-17807)
  • kernel: denial of service via ioctl call in network tun handling (CVE-2018-7191)
  • kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS (CVE-2018-20169)
  • kernel: perf_event_open() and execve() race in setuid programs allows a data leak (CVE-2019-3901)
  • kernel: brcmfmac frame validation bypass (CVE-2019-9503)
  • kernel: null-pointer dereference in hci_uart_set_flow_control (CVE-2019-10207)
  • kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command (CVE-2019-11884)
  • kernel: unchecked kstrdup of fwstr in drm_load_edid_firmware leads to denial of service (CVE-2019-12382)
  • kernel: use-after-free in arch/x86/lib/insn-eval.c (CVE-2019-13233)
  • kernel: integer overflow and OOB read in drivers/block/floppy.c (CVE-2019-14283)
  • kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service (CVE-2019-15916)
  • kernel: buffer-overflow hardening in WiFi beacon validation code. (CVE-2019-16746)
  • kernel: oob memory read in hso_probe in drivers/net/usb/hso.c (CVE-2018-19985)
  • Kernel: net: weak IP ID generation leads to remote device tracking (CVE-2019-10638)
  • Kernel: net: using kernel space address bits to derive IP ID may potentially break KASLR (CVE-2019-10639)
  • kernel: ASLR bypass for setuid binaries due to late install_exec_creds() (CVE-2019-11190)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.8 Release Notes linked from the References section.

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 Real Time 7 x86_64
  • Red Hat Enterprise Linux for Real Time for NFV 7 x86_64

Fixes

  • BZ - 1528335 - CVE-2017-17807 kernel: Missing permissions check for request_key() destination allows local attackers to add keys to keyring without Write permission
  • BZ - 1550584 - spurious ktimersoftd wake ups increases latency (rhel-rt 7)
  • BZ - 1660385 - CVE-2018-20169 kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS
  • BZ - 1666106 - CVE-2018-19985 kernel: oob memory read in hso_probe in drivers/net/usb/hso.c
  • BZ - 1690543 - 8 vCPU guest need max latency < 20 us with stress
  • BZ - 1696087 - BUG: scheduling while atomic in zswap
  • BZ - 1699438 - add_timer_on on remote CPUs not firing
  • BZ - 1699856 - CVE-2019-11190 kernel: ASLR bypass for setuid binaries due to late install_exec_creds()
  • BZ - 1701245 - CVE-2019-3901 kernel: perf_event_open() and execve() race in setuid programs allows a data leak
  • BZ - 1701842 - CVE-2019-9503 kernel: brcmfmac frame validation bypass
  • BZ - 1708718 - RT: update kernel-rt source tree to match RHEL 7.8 tree
  • BZ - 1709837 - CVE-2019-11884 kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command
  • BZ - 1715554 - CVE-2019-12382 kernel: unchecked kstrdup of fwstr in drm_load_edid_firmware leads to denial of service
  • BZ - 1716328 - CVE-2018-7191 kernel: denial of service via ioctl call in network tun handling
  • BZ - 1727756 - CVE-2019-13233 kernel: use-after-free in arch/x86/lib/insn-eval.c
  • BZ - 1729931 - CVE-2019-10638 Kernel: net: weak IP ID generation leads to remote device tracking
  • BZ - 1729933 - CVE-2019-10639 Kernel: net: using kernel space address bits to derive IP ID may potentially break KASLR
  • BZ - 1733874 - CVE-2019-10207 kernel: null-pointer dereference in hci_uart_set_flow_control
  • BZ - 1734243 - CVE-2019-14283 kernel: integer overflow and OOB read in drivers/block/floppy.c
  • BZ - 1735655 - CVE-2015-9289 kernel: out of bound read in DVB connexant driver.
  • BZ - 1741775 - crypto_rfc4543_encrypt: BUG: sleeping function called from invalid context at kernel/rtmutex.c:883
  • BZ - 1750813 - CVE-2019-15916 kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service
  • BZ - 1751083 - kernel:unregister_netdevice: waiting for veth0_client to become free. Usage count = 1
  • BZ - 1760306 - CVE-2019-16746 kernel: buffer-overflow hardening in WiFi beacon validation code.
  • BZ - 1772894 - kvm nx_huge_pages_recovery_ratio=0 is needed to meet KVM-RT low latency requirement

CVEs

References

Red Hat Enterprise Linux for Real Time 7

SRPM
kernel-rt-3.10.0-1127.rt56.1093.el7.src.rpm SHA-256: 1fc93ae4c0ca009c881bcafcff8052a092032f777aea45aef13bc5e1cc1b2808
x86_64
kernel-rt-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 92b64eab76898e15058e9f138b3ef0607c0855ed42d65041edffdbf66abb7e91
kernel-rt-debug-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: ba5927b4b2ce9a08a72613a691502b5be5b0dbda5a0d389d4a12c8a4572aa275
kernel-rt-debug-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 9aeddfd21138eaae02a1506ec39ac6113823fad2f16814989e503495cc605103
kernel-rt-debug-devel-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 9efd4e5e97eaa620b1f919978a331d1a5dc1db5c9a42826177b5dbeb0093739b
kernel-rt-debug-kvm-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: eba7f8de1d5d9f07eb5f20f93fd26c42999803bc5275ea35be7fd1ceb90d8b5a
kernel-rt-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: c1c413cd54cb302148468951a0fac77ae0c45e9b10834ddefc59fb2da4a597e9
kernel-rt-debuginfo-common-x86_64-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 6b2ec854d53b3946fc486e9bb02d5ec2c4b4efe15a0b5a19eff64fa42df20995
kernel-rt-devel-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 96a24a4fa516f9c8cd0e648599fb3e2b9c86e26de1302f10e7ef5d3a05f3af95
kernel-rt-doc-3.10.0-1127.rt56.1093.el7.noarch.rpm SHA-256: 3a4d2b5bca7287bd2ba8604d6bd10348565188105a51d8804d4937e0f4c69997
kernel-rt-kvm-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 3657025af28804dafba36da5b6c3d1974622bbb424daf825e7f302438de140e2
kernel-rt-trace-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 64a35c3e18f996af050b17450cfc70bc48205482acefa48697cbecf8325e976f
kernel-rt-trace-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 0e1a31f82ece95cd21938fe22db477c0cc6f98066a633a7b27f4003af2c807c8
kernel-rt-trace-devel-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 0e9f9cc7a6df26f2711aa672b41b4264589cc11c7f50e5f96a32a03e707043c1
kernel-rt-trace-kvm-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 239a7ea97b9d3877f0e81f0217008549f2da4b018d2b91f1d197e9b4304c048c

Red Hat Enterprise Linux for Real Time for NFV 7

SRPM
kernel-rt-3.10.0-1127.rt56.1093.el7.src.rpm SHA-256: 1fc93ae4c0ca009c881bcafcff8052a092032f777aea45aef13bc5e1cc1b2808
x86_64
kernel-rt-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 92b64eab76898e15058e9f138b3ef0607c0855ed42d65041edffdbf66abb7e91
kernel-rt-debug-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: ba5927b4b2ce9a08a72613a691502b5be5b0dbda5a0d389d4a12c8a4572aa275
kernel-rt-debug-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 9aeddfd21138eaae02a1506ec39ac6113823fad2f16814989e503495cc605103
kernel-rt-debug-devel-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 9efd4e5e97eaa620b1f919978a331d1a5dc1db5c9a42826177b5dbeb0093739b
kernel-rt-debug-kvm-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: c4524389f9651f21bb3ca8d6f78fef8f3579b4963f102ae76be5fdcc2b32aff6
kernel-rt-debug-kvm-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: eba7f8de1d5d9f07eb5f20f93fd26c42999803bc5275ea35be7fd1ceb90d8b5a
kernel-rt-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: c1c413cd54cb302148468951a0fac77ae0c45e9b10834ddefc59fb2da4a597e9
kernel-rt-debuginfo-common-x86_64-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 6b2ec854d53b3946fc486e9bb02d5ec2c4b4efe15a0b5a19eff64fa42df20995
kernel-rt-devel-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 96a24a4fa516f9c8cd0e648599fb3e2b9c86e26de1302f10e7ef5d3a05f3af95
kernel-rt-doc-3.10.0-1127.rt56.1093.el7.noarch.rpm SHA-256: 3a4d2b5bca7287bd2ba8604d6bd10348565188105a51d8804d4937e0f4c69997
kernel-rt-kvm-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 52abb360ca17125ee16919be81c41260decf4130b1c5bdf09ca60642a357c0b2
kernel-rt-kvm-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 3657025af28804dafba36da5b6c3d1974622bbb424daf825e7f302438de140e2
kernel-rt-trace-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 64a35c3e18f996af050b17450cfc70bc48205482acefa48697cbecf8325e976f
kernel-rt-trace-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 0e1a31f82ece95cd21938fe22db477c0cc6f98066a633a7b27f4003af2c807c8
kernel-rt-trace-devel-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 0e9f9cc7a6df26f2711aa672b41b4264589cc11c7f50e5f96a32a03e707043c1
kernel-rt-trace-kvm-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: aed60f948edf4bab8929ee38dba7c14fc6d85ca560bdcdcf6919fc7b70651483
kernel-rt-trace-kvm-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm SHA-256: 239a7ea97b9d3877f0e81f0217008549f2da4b018d2b91f1d197e9b4304c048c

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.