SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0438-1)

high Nessus Plugin ID 146474
New! Plugin Severity Now Using CVSS v3

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2021-3348: Fixed a use-after-free in nbd_add_socket that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup (bnc#1181504).

CVE-2021-3347: A use-after-free was discovered in the PI futexes during fault handling, allowing local users to execute code in the kernel (bnc#1181349).

CVE-2020-25211: Fixed a buffer overflow in ctnetlink_parse_tuple_filter() which could be triggered by a local attackers by injecting conntrack netlink configuration (bnc#1176395).

CVE-2020-27835: A use-after-free in the infiniband hfi1 driver was found, specifically in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system (bnc#1179878).

CVE-2020-29569: Fixed a potential privilege escalation and information leaks related to the PV block backend, as used by Xen (bnc#1179509).

CVE-2020-29568: Fixed a denial of service issue, related to processing watch events (bnc#1179508).

CVE-2020-0444: Fixed a bad kfree due to a logic error in audit_data_to_entry (bnc#1180027).

CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c that could have led to local privilege escalation (bnc#1180029).

CVE-2020-0466: Fixed a use-after-free due to a logic error in do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180031).

CVE-2020-4788: Fixed an issue with IBM Power9 processors could have allowed a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances (bsc#1177666).

CVE-2020-10781: A flaw was found in the ZRAM kernel module, where a user with a local account and the ability to read the /sys/class/zram-control/hot_add file can create ZRAM device nodes in the /dev/ directory. This read allocates kernel memory and is not accounted for a user that triggers the creation of that ZRAM device.
With this vulnerability, continually reading the device may consume a large amount of system memory and cause the Out-of-Memory (OOM) killer to activate and terminate random userspace processes, possibly making the system inoperable (bnc#1173074).

CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).

CVE-2020-27068: Fixed an out-of-bounds read due to a missing bounds check in the nl80211_policy policy of nl80211.c (bnc#1180086).

CVE-2020-25639: Fixed a NULL pointer dereference via nouveau ioctl (bnc#1176846).

CVE-2020-27777: Fixed a privilege escalation in the Run-Time Abstraction Services (RTAS) interface, affecting guests running on top of PowerVM or KVM hypervisors (bnc#1179107).

CVE-2020-27786: Fixed an out-of-bounds write in the MIDI implementation (bnc#1179601).

CVE-2020-27825: Fixed a race in the trace_open and buffer resize calls (bsc#1179960).

CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bnc#1179745).

CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179745).

CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).

CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).

CVE-2020-28374: Fixed a Linux SCSI target issue (bsc#1178372).

CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).

CVE-2020-29371: An issue was discovered in romfs_dev_read in fs/romfs/storage.c where uninitialized memory leaks to userspace (bnc#1179429).

CVE-2020-15437: Fixed a NULL pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140).

CVE-2020-36158: Fixed a potential remote code execution in the Marvell mwifiex driver (bsc#1180559).

CVE-2020-11668: Fixed the mishandling of invalid descriptors in the Xirlink camera USB driver (bnc#1168952).

CVE-2019-20934: Fixed a use-after-free in show_numa_stats() because NUMA fault statistics were inappropriately freed (bsc#1179663).

CVE-2019-20806: Fixed a NULL pointer dereference in tw5864_handle_frame() in drivers/media/pci/tw5864/tw5864-video.c, which may cause denial of service (bnc#1172199).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server for SAP 15 :

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2021-438=1

SUSE Linux Enterprise Server 15-LTSS :

zypper in -t patch SUSE-SLE-Product-SLES-15-2021-438=1

SUSE Linux Enterprise Module for Live Patching 15 :

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2021-438=1

SUSE Linux Enterprise High Performance Computing 15-LTSS :

zypper in -t patch SUSE-SLE-Product-HPC-15-2021-438=1

SUSE Linux Enterprise High Performance Computing 15-ESPOS :

zypper in -t patch SUSE-SLE-Product-HPC-15-2021-438=1

SUSE Linux Enterprise High Availability 15 :

zypper in -t patch SUSE-SLE-Product-HA-15-2021-438=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1144912

https://bugzilla.suse.com/show_bug.cgi?id=1149032

https://bugzilla.suse.com/show_bug.cgi?id=1163840

https://bugzilla.suse.com/show_bug.cgi?id=1168952

https://bugzilla.suse.com/show_bug.cgi?id=1172199

https://bugzilla.suse.com/show_bug.cgi?id=1173074

https://bugzilla.suse.com/show_bug.cgi?id=1173942

https://bugzilla.suse.com/show_bug.cgi?id=1176395

https://bugzilla.suse.com/show_bug.cgi?id=1176846

https://bugzilla.suse.com/show_bug.cgi?id=1177666

https://bugzilla.suse.com/show_bug.cgi?id=1178182

https://bugzilla.suse.com/show_bug.cgi?id=1178272

https://bugzilla.suse.com/show_bug.cgi?id=1178372

https://bugzilla.suse.com/show_bug.cgi?id=1178589

https://bugzilla.suse.com/show_bug.cgi?id=1178590

https://bugzilla.suse.com/show_bug.cgi?id=1178684

https://bugzilla.suse.com/show_bug.cgi?id=1178886

https://bugzilla.suse.com/show_bug.cgi?id=1179071

https://bugzilla.suse.com/show_bug.cgi?id=1179107

https://bugzilla.suse.com/show_bug.cgi?id=1179140

https://bugzilla.suse.com/show_bug.cgi?id=1179141

https://bugzilla.suse.com/show_bug.cgi?id=1179419

https://bugzilla.suse.com/show_bug.cgi?id=1179429

https://bugzilla.suse.com/show_bug.cgi?id=1179508

https://bugzilla.suse.com/show_bug.cgi?id=1179509

https://bugzilla.suse.com/show_bug.cgi?id=1179601

https://bugzilla.suse.com/show_bug.cgi?id=1179616

https://bugzilla.suse.com/show_bug.cgi?id=1179663

https://bugzilla.suse.com/show_bug.cgi?id=1179666

https://bugzilla.suse.com/show_bug.cgi?id=1179745

https://bugzilla.suse.com/show_bug.cgi?id=1179877

https://bugzilla.suse.com/show_bug.cgi?id=1179878

https://bugzilla.suse.com/show_bug.cgi?id=1179895

https://bugzilla.suse.com/show_bug.cgi?id=1179960

https://bugzilla.suse.com/show_bug.cgi?id=1179961

https://bugzilla.suse.com/show_bug.cgi?id=1180008

https://bugzilla.suse.com/show_bug.cgi?id=1180027

https://bugzilla.suse.com/show_bug.cgi?id=1180028

https://bugzilla.suse.com/show_bug.cgi?id=1180029

https://bugzilla.suse.com/show_bug.cgi?id=1180030

https://bugzilla.suse.com/show_bug.cgi?id=1180031

https://bugzilla.suse.com/show_bug.cgi?id=1180032

https://bugzilla.suse.com/show_bug.cgi?id=1180052

https://bugzilla.suse.com/show_bug.cgi?id=1180086

https://bugzilla.suse.com/show_bug.cgi?id=1180559

https://bugzilla.suse.com/show_bug.cgi?id=1180562

https://bugzilla.suse.com/show_bug.cgi?id=1180676

https://bugzilla.suse.com/show_bug.cgi?id=1181001

https://bugzilla.suse.com/show_bug.cgi?id=1181158

https://bugzilla.suse.com/show_bug.cgi?id=1181349

https://bugzilla.suse.com/show_bug.cgi?id=1181504

https://bugzilla.suse.com/show_bug.cgi?id=1181553

https://bugzilla.suse.com/show_bug.cgi?id=1181645

https://www.suse.com/security/cve/CVE-2019-20806/

https://www.suse.com/security/cve/CVE-2019-20934/

https://www.suse.com/security/cve/CVE-2020-0444/

https://www.suse.com/security/cve/CVE-2020-0465/

https://www.suse.com/security/cve/CVE-2020-0466/

https://www.suse.com/security/cve/CVE-2020-10781/

https://www.suse.com/security/cve/CVE-2020-11668/

https://www.suse.com/security/cve/CVE-2020-15436/

https://www.suse.com/security/cve/CVE-2020-15437/

https://www.suse.com/security/cve/CVE-2020-25211/

https://www.suse.com/security/cve/CVE-2020-25639/

https://www.suse.com/security/cve/CVE-2020-25669/

https://www.suse.com/security/cve/CVE-2020-27068/

https://www.suse.com/security/cve/CVE-2020-27777/

https://www.suse.com/security/cve/CVE-2020-27786/

https://www.suse.com/security/cve/CVE-2020-27825/

https://www.suse.com/security/cve/CVE-2020-27835/

https://www.suse.com/security/cve/CVE-2020-28374/

https://www.suse.com/security/cve/CVE-2020-28915/

https://www.suse.com/security/cve/CVE-2020-28974/

https://www.suse.com/security/cve/CVE-2020-29371/

https://www.suse.com/security/cve/CVE-2020-29568/

https://www.suse.com/security/cve/CVE-2020-29569/

https://www.suse.com/security/cve/CVE-2020-29660/

https://www.suse.com/security/cve/CVE-2020-29661/

https://www.suse.com/security/cve/CVE-2020-36158/

https://www.suse.com/security/cve/CVE-2020-4788/

https://www.suse.com/security/cve/CVE-2021-3347/

https://www.suse.com/security/cve/CVE-2021-3348/

http://www.nessus.org/u?5f57dfef

Plugin Details

Severity: High

ID: 146474

File Name: suse_SU-2021-0438-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2/12/2021

Updated: 2/16/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-3347

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: E:POC/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-default, p-cpe:/a:novell:suse_linux:kernel-default-base, p-cpe:/a:novell:suse_linux:kernel-default-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debugsource, p-cpe:/a:novell:suse_linux:kernel-default-devel, p-cpe:/a:novell:suse_linux:kernel-default-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-man, p-cpe:/a:novell:suse_linux:kernel-obs-build, p-cpe:/a:novell:suse_linux:kernel-obs-build-debugsource, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kernel-vanilla-base, p-cpe:/a:novell:suse_linux:kernel-vanilla-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-vanilla-debuginfo, p-cpe:/a:novell:suse_linux:kernel-vanilla-debugsource, p-cpe:/a:novell:suse_linux:kernel-zfcpdump-debuginfo, p-cpe:/a:novell:suse_linux:kernel-zfcpdump-debugsource, p-cpe:/a:novell:suse_linux:reiserfs-kmp-default, p-cpe:/a:novell:suse_linux:reiserfs-kmp-default-debuginfo, cpe:/o:novell:suse_linux:15

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/11/2021

Vulnerability Publication Date: 4/9/2020

Reference Information

CVE: CVE-2019-20806, CVE-2019-20934, CVE-2020-0444, CVE-2020-0465, CVE-2020-0466, CVE-2020-10781, CVE-2020-11668, CVE-2020-15436, CVE-2020-15437, CVE-2020-25211, CVE-2020-25639, CVE-2020-25669, CVE-2020-27068, CVE-2020-27777, CVE-2020-27786, CVE-2020-27825, CVE-2020-27835, CVE-2020-28374, CVE-2020-28915, CVE-2020-28974, CVE-2020-29371, CVE-2020-29568, CVE-2020-29569, CVE-2020-29660, CVE-2020-29661, CVE-2020-36158, CVE-2020-4788, CVE-2021-3347, CVE-2021-3348