Sigurnosni nedostaci jezgre operacijskog sustava

Detalji os-a: WN7
Važnost: IMP
Operativni sustavi: L
Kategorije: LRH

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=====================================================================
Red Hat Security Advisory

Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2020:2522-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2522
Issue date: 2020-06-10
CVE Names: CVE-2017-18595 CVE-2018-7191 CVE-2018-20169
CVE-2019-3901 CVE-2019-9503 CVE-2019-10639
CVE-2019-12382 CVE-2019-13233 CVE-2019-14283
CVE-2019-15916 CVE-2019-19768 CVE-2020-10711
=====================================================================

1. Summary:

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) – noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) – x86_64
Red Hat Enterprise Linux Server EUS (v. 7.7) – noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 7.7) – ppc64, ppc64le, x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es):

* kernel: double free may be caused by the function allocate_trace_buffer
in the file kernel/trace/trace.c (CVE-2017-18595)

* kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c
(CVE-2019-19768)

* Kernel: NetLabel: null pointer dereference while receiving CIPSO packet
with null category may cause kernel panic (CVE-2020-10711)

* 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: 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: net: using kernel space address bits to derive IP ID may
potentially break KASLR (CVE-2019-10639)

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):

* Backport: Guest microcode version mismatch on secondary processors
(BZ#1814002)

* Realtek 8111, 8112 stop working after upgrading to 3.10.0-1062
(BZ#1814601)

* [mlx5] Crash on reboot while having VF configured and in switchdev mode
(BZ#1814800)

* qla2xxx: Urgent driver fix needed. Initiator does not relogin to target
after receiving an explicit logout (BZ#1815595)

* High iSCSI read latency resolved by ‘tcp: implement coalescing on backlog
queue’ (BZ#1817498)

* [RHEL7.8][Azure]Commits to resolve high network latency (BZ#1817934)

* NETDEV WATCHDOG: enp3s0 (r8169): transmit queue 0 timed out (BZ#1822541)

* RHEL7: block mq hang of a blk_mq_freeze_queue_wait(), which waits for a
zero of a q_usage_counter, which never happens (BZ#1824545)

* Kernel crashes with a message fs/fscache/operation.c:449! (BZ#1826293)

* kernel BUG at fs/fscache/operation.c:70! FS-Cache: 4 == 5 is false –
current state is FSCACHE_OP_ST_COMPLETE but should be FSCACHE_OP_CANCELLED
in fscache_enqueue_operation (BZ#1839756)

4. 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.

5. Bugs fixed (https://bugzilla.redhat.com/):

1660385 – CVE-2018-20169 kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS
1701245 – CVE-2019-3901 kernel: perf_event_open() and execve() race in setuid programs allows a data leak
1701842 – CVE-2019-9503 kernel: brcmfmac frame validation bypass
1715554 – CVE-2019-12382 kernel: unchecked kstrdup of fwstr in drm_load_edid_firmware leads to denial of service
1716328 – CVE-2018-7191 kernel: denial of service via ioctl call in network tun handling
1727756 – CVE-2019-13233 kernel: use-after-free in arch/x86/lib/insn-eval.c
1729933 – CVE-2019-10639 Kernel: net: using kernel space address bits to derive IP ID may potentially break KASLR
1734243 – CVE-2019-14283 kernel: integer overflow and OOB read in drivers/block/floppy.c
1750813 – CVE-2019-15916 kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service
1758671 – CVE-2017-18595 kernel: double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c
1786164 – CVE-2019-19768 kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c
1825116 – CVE-2020-10711 Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic

6. Package List:

Red Hat Enterprise Linux ComputeNode EUS (v. 7.7):

Source:
kernel-3.10.0-1062.26.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1062.26.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.26.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-1062.26.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-debug-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-devel-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-headers-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-tools-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.26.1.el7.x86_64.rpm
perf-3.10.0-1062.26.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.26.1.el7.x86_64.rpm
python-perf-3.10.0-1062.26.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.26.1.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7):

x86_64:
bpftool-debuginfo-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.26.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.26.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.26.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.26.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server EUS (v. 7.7):

Source:
kernel-3.10.0-1062.26.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1062.26.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.26.1.el7.noarch.rpm

ppc64:
bpftool-3.10.0-1062.26.1.el7.ppc64.rpm
bpftool-debuginfo-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-debug-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-devel-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-headers-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-tools-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-1062.26.1.el7.ppc64.rpm
perf-3.10.0-1062.26.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-1062.26.1.el7.ppc64.rpm
python-perf-3.10.0-1062.26.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1062.26.1.el7.ppc64.rpm

ppc64le:
bpftool-3.10.0-1062.26.1.el7.ppc64le.rpm
bpftool-debuginfo-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-debug-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-devel-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-headers-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-tools-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-1062.26.1.el7.ppc64le.rpm
perf-3.10.0-1062.26.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1062.26.1.el7.ppc64le.rpm
python-perf-3.10.0-1062.26.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1062.26.1.el7.ppc64le.rpm

s390x:
bpftool-3.10.0-1062.26.1.el7.s390x.rpm
bpftool-debuginfo-3.10.0-1062.26.1.el7.s390x.rpm
kernel-3.10.0-1062.26.1.el7.s390x.rpm
kernel-debug-3.10.0-1062.26.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-1062.26.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-1062.26.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-1062.26.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-1062.26.1.el7.s390x.rpm
kernel-devel-3.10.0-1062.26.1.el7.s390x.rpm
kernel-headers-3.10.0-1062.26.1.el7.s390x.rpm
kernel-kdump-3.10.0-1062.26.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-1062.26.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-1062.26.1.el7.s390x.rpm
perf-3.10.0-1062.26.1.el7.s390x.rpm
perf-debuginfo-3.10.0-1062.26.1.el7.s390x.rpm
python-perf-3.10.0-1062.26.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-1062.26.1.el7.s390x.rpm

Red Hat Enterprise Linux Server Optional EUS (v. 7.7):

ppc64:
bpftool-debuginfo-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1062.26.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-1062.26.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-1062.26.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1062.26.1.el7.ppc64.rpm

ppc64le:
bpftool-debuginfo-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1062.26.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-1062.26.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1062.26.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1062.26.1.el7.ppc64le.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2017-18595
https://access.redhat.com/security/cve/CVE-2018-7191
https://access.redhat.com/security/cve/CVE-2018-20169
https://access.redhat.com/security/cve/CVE-2019-3901
https://access.redhat.com/security/cve/CVE-2019-9503
https://access.redhat.com/security/cve/CVE-2019-10639
https://access.redhat.com/security/cve/CVE-2019-12382
https://access.redhat.com/security/cve/CVE-2019-13233
https://access.redhat.com/security/cve/CVE-2019-14283
https://access.redhat.com/security/cve/CVE-2019-15916
https://access.redhat.com/security/cve/CVE-2019-19768
https://access.redhat.com/security/cve/CVE-2020-10711
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

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Autor	Filip Zagar
Cert id	NCERT-REF-2020-06-0001-ADV
Cve	CERT-CVE-DUMMY
ID izvornika	CERT-ORIGID-DUMMY
Proizvod	CERT-DUMMY-PRODUCT
Izvor	Adobe

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