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Test ID:1.3.6.1.4.1.25623.1.1.4.2019.1535.1
Category:SuSE Local Security Checks
Title:SUSE: Security Advisory (SUSE-SU-2019:1535-1)
Summary:The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2019:1535-1 advisory.
Description:Summary:
The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2019:1535-1 advisory.

Vulnerability Insight:
The SUSE Linux Enterprise 15 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:
CVE-2019-11477: A sequence of SACKs may have been crafted such that one
can trigger an integer overflow, leading to a kernel panic.

CVE-2019-11478: It was possible to send a crafted sequence of SACKs
which will fragment the TCP retransmission queue. An attacker may have
been able to further exploit the fragmented queue to cause an expensive
linked-list walk for subsequent SACKs received for that same TCP
connection.

CVE-2019-11479: An attacker could force the Linux kernel to segment its
responses into multiple TCP segments. This would drastically increased
the bandwidth required to deliver the same amount of data. Further, it
would consume additional resources such as CPU and NIC processing power.

CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and
possibly escalate privileges was found in the mwifiex kernel module
while connecting to a malicious wireless network. (bnc#1136424)

CVE-2019-12382: An issue was discovered in drm_load_edid_firmware in
drivers/gpu/drm/drm_edid_load.c in the Linux kernel, there was an
unchecked kstrdup of fwstr, which might have allowed an attacker to
cause a denial of service (NULL pointer dereference and system crash).
(bnc#1136586)

CVE-2019-5489: The mincore() implementation in mm/mincore.c in the Linux
kernel allowed local attackers to observe page cache access patterns of
other processes on the same system, potentially allowing sniffing of
secret information. (Fixing this affects the output of the fincore
program.) Limited remote exploitation may have been possible, as
demonstrated by latency differences in accessing public files from an
Apache HTTP Server. (bnc#1120843)

CVE-2019-11487: The Linux kernel allowed page reference count overflow,
with resultant use-after-free issues, if about 140 GiB of RAM existed.
It could have occured with FUSE requests. (bnc#1133190)

CVE-2019-11833: fs/ext4/extents.c in the Linux kernel did not zero out
the unused memory region in the extent tree block, which might have
allowed local users to obtain sensitive information by reading
uninitialized data in the filesystem. (bnc#1135281)

CVE-2018-7191: In the tun subsystem in the Linux kernel,
dev_get_valid_name was not called before register_netdevice. This
allowed local users to cause a denial of service (NULL pointer
dereference and panic) via an ioctl(TUNSETIFF) call with a dev name
containing a / character. (bnc#1135603)

CVE-2019-11085: Insufficient input validation in Kernel Mode Driver in
i915 Graphics for Linux may have allowed an authenticated user to
potentially enable escalation of privilege via local access.
(bnc#1135278)

CVE-2019-11815: An issue was discovered in rds_tcp_kill_sock in
net/rds/tcp.c in the Linux kernel There was a race condition leading to
a u... [Please see the references for more information on the vulnerabilities]

Affected Software/OS:
'Linux Kernel' package(s) on SUSE Linux Enterprise Module for Public Cloud 15, SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1

Solution:
Please install the updated package(s).

CVSS Score:
9.3

CVSS Vector:
AV:N/AC:M/Au:N/C:C/I:C/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2018-7191
BugTraq ID: 108380
http://www.securityfocus.com/bid/108380
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743792
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1748846
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.14
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ad646c81b2182f7fa67ec0c8c825e0ee165696d
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c25f65fd1e42685f7ccd80e0621829c105785d9
https://github.com/torvalds/linux/commit/0ad646c81b2182f7fa67ec0c8c825e0ee165696d
https://github.com/torvalds/linux/commit/5c25f65fd1e42685f7ccd80e0621829c105785d9
SuSE Security Announcement: openSUSE-SU-2019:1479 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html
SuSE Security Announcement: openSUSE-SU-2019:1570 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
SuSE Security Announcement: openSUSE-SU-2019:1579 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
Common Vulnerability Exposure (CVE) ID: CVE-2019-3846
Bugtraq: 20190618 [SECURITY] [DSA 4465-1] linux security update (Google Search)
https://seclists.org/bugtraq/2019/Jun/26
Bugtraq: 20190722 [slackware-security] Slackware 14.2 kernel (SSA:2019-202-01) (Google Search)
https://seclists.org/bugtraq/2019/Jul/33
Debian Security Information: DSA-4465 (Google Search)
https://www.debian.org/security/2019/dsa-4465
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KLGWJKLMTBBB53D5QLS4HOY2EH246WBE/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI/
http://packetstormsecurity.com/files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
https://seclists.org/oss-sec/2019/q2/133
https://lists.debian.org/debian-lts-announce/2019/06/msg00010.html
https://lists.debian.org/debian-lts-announce/2019/06/msg00011.html
RedHat Security Advisories: RHSA-2019:2703
https://access.redhat.com/errata/RHSA-2019:2703
RedHat Security Advisories: RHSA-2019:2741
https://access.redhat.com/errata/RHSA-2019:2741
RedHat Security Advisories: RHSA-2019:3055
https://access.redhat.com/errata/RHSA-2019:3055
RedHat Security Advisories: RHSA-2019:3076
https://access.redhat.com/errata/RHSA-2019:3076
RedHat Security Advisories: RHSA-2019:3089
https://access.redhat.com/errata/RHSA-2019:3089
RedHat Security Advisories: RHSA-2020:0174
https://access.redhat.com/errata/RHSA-2020:0174
SuSE Security Announcement: openSUSE-SU-2019:1571 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html
https://usn.ubuntu.com/4093-1/
https://usn.ubuntu.com/4094-1/
https://usn.ubuntu.com/4095-1/
https://usn.ubuntu.com/4095-2/
https://usn.ubuntu.com/4117-1/
https://usn.ubuntu.com/4118-1/
Common Vulnerability Exposure (CVE) ID: CVE-2019-5489
BugTraq ID: 106478
http://www.securityfocus.com/bid/106478
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-pagecache-en
https://security.netapp.com/advisory/ntap-20190307-0001/
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=574823bfab82d9d8fa47f422778043fbb4b4f50e
https://arxiv.org/abs/1901.01161
https://bugzilla.suse.com/show_bug.cgi?id=1120843
https://github.com/torvalds/linux/commit/574823bfab82d9d8fa47f422778043fbb4b4f50e
https://www.oracle.com/security-alerts/cpujul2020.html
https://www.theregister.co.uk/2019/01/05/boffins_beat_page_cache/
RedHat Security Advisories: RHSA-2019:2029
https://access.redhat.com/errata/RHSA-2019:2029
RedHat Security Advisories: RHSA-2019:2043
https://access.redhat.com/errata/RHSA-2019:2043
RedHat Security Advisories: RHSA-2019:2473
https://access.redhat.com/errata/RHSA-2019:2473
RedHat Security Advisories: RHSA-2019:2808
https://access.redhat.com/errata/RHSA-2019:2808
RedHat Security Advisories: RHSA-2019:2809
https://access.redhat.com/errata/RHSA-2019:2809
RedHat Security Advisories: RHSA-2019:2837
https://access.redhat.com/errata/RHSA-2019:2837
RedHat Security Advisories: RHSA-2019:3309
https://access.redhat.com/errata/RHSA-2019:3309
RedHat Security Advisories: RHSA-2019:3517
https://access.redhat.com/errata/RHSA-2019:3517
RedHat Security Advisories: RHSA-2019:3967
https://access.redhat.com/errata/RHSA-2019:3967
RedHat Security Advisories: RHSA-2019:4056
https://access.redhat.com/errata/RHSA-2019:4056
RedHat Security Advisories: RHSA-2019:4057
https://access.redhat.com/errata/RHSA-2019:4057
RedHat Security Advisories: RHSA-2019:4058
https://access.redhat.com/errata/RHSA-2019:4058
RedHat Security Advisories: RHSA-2019:4159
https://access.redhat.com/errata/RHSA-2019:4159
RedHat Security Advisories: RHSA-2019:4164
https://access.redhat.com/errata/RHSA-2019:4164
RedHat Security Advisories: RHSA-2019:4255
https://access.redhat.com/errata/RHSA-2019:4255
RedHat Security Advisories: RHSA-2020:0204
https://access.redhat.com/errata/RHSA-2020:0204
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