SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1255-1)

Critical Nessus Plugin ID 136661

Synopsis

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

Description

The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).

CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).

CVE-2020-8647: Fixed a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).

CVE-2020-8649: Fixed a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).

CVE-2020-9383: Fixed an issue in set_fdc in drivers/block/floppy.c, which leads to a wait_til_ready out-of-bounds read (bnc#1165111).

CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).

CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).

CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).

CVE-2020-11609: Fixed a NULL pointer dereference in the stv06xx subsystem caused by mishandling invalid descriptors (bnc#1168854).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bnc#1170345).

CVE-2020-11608: Fixed an issue in drivers/media/usb/gspca/ov519.c caused by a NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs when there are zero endpoints (bnc#1168829).

CVE-2017-18255: The perf_cpu_time_max_percent_handler function in kernel/events/core.c allowed local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation (bnc#1087813).

CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).

CVE-2020-2732: A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest (bnc#1163971).

CVE-2019-5108: Fixed a denial-of-service vulnerability caused by triggering AP to send IAPP location updates for stations before the required authentication process has completed (bnc#1159912).

CVE-2020-8992: ext4_protect_reserved_inode in fs/ext4/block_validity.c allowed attackers to cause a denial of service (soft lockup) via a crafted journal size (bnc#1164069).

CVE-2018-21008: Fixed a use-after-free which could be caused by the function rsi_mac80211_detach in the file drivers/net/wireless/rsi/rsi_91x_mac80211.c (bnc#1149591).

CVE-2019-14896: A heap-based buffer overflow vulnerability was found in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).

CVE-2019-14897: A stack-based buffer overflow was found in Marvell WiFi chip driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to another STA (bnc#1157155).

CVE-2019-18675: Fixed an integer overflow in cpia2_remap_buffer in drivers/media/usb/cpia2/cpia2_core.c because cpia2 has its own mmap implementation. This allowed local users (with /dev/video0 access) to obtain read and write permissions on kernel physical pages, which can possibly result in a privilege escalation (bnc#1157804).

CVE-2019-14615: Insufficient control flow in certain data structures for some Intel(R) Processors with Intel(R) Processor Graphics may have allowed an unauthenticated user to potentially enable information disclosure via local access (bnc#1160195, bsc#1165881).

CVE-2019-19965: Fixed a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition (bnc#1159911).

CVE-2019-20054: Fixed a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links (bnc#1159910).

CVE-2019-20096: Fixed a memory leak in __feat_register_sp() in net/dccp/feat.c, which may cause denial of service (bnc#1159908).

CVE-2019-19966: Fixed a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that will cause denial of service (bnc#1159841).

CVE-2019-19447: Fixed an issue with mounting a crafted ext4 filesystem image, performing some operations, and unmounting could lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c (bnc#1158819).

CVE-2019-19319: Fixed an issue with a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call (bnc#1158021).

CVE-2019-19767: Fixed mishandling of ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c (bnc#1159297).

CVE-2019-19066: Fixed memory leak in the bfad_im_get_stats() function in drivers/scsi/bfa/bfad_attr.c that allowed attackers to cause a denial of service (memory consumption) by triggering bfa_port_get_stats() failures (bnc#1157303).

CVE-2019-19332: There was an OOB memory write via kvm_dev_ioctl_get_cpuid (bsc#1158827).

CVE-2019-19537: There was a race condition bug that could have been caused by a malicious USB device in the USB character device driver layer (bnc#1158904).

CVE-2019-19535: There was an info-leak bug that could have been caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver (bnc#1158903).

CVE-2019-19527: There was a use-after-free bug that could have been caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver (bnc#1158900).

CVE-2019-19533: There was an info-leak bug that could have been caused by a malicious USB device in the drivers/media/usb/ttusb-dec/ttusb_dec.c driver (bnc#1158834).

CVE-2019-19532: There were multiple out-of-bounds write bugs that could have been caused by a malicious USB device in the Linux kernel HID drivers (bnc#1158824).

CVE-2019-19523: There was a use-after-free bug that could have been caused by a malicious USB device in the drivers/usb/misc/adutux.c driver (bnc#1158823).

CVE-2019-15213: An issue was discovered in the Linux kernel, there was a use-after-free caused by a malicious USB device in the drivers/media/usb/dvb-usb/dvb-usb-init.c driver (bnc#1146544).

CVE-2019-19531: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/yurex.c driver (bnc#1158445).

CVE-2019-19525: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/net/ieee802154/atusb.c driver (bnc#1158417).

CVE-2019-19530: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/class/cdc-acm.c driver (bnc#1158410).

CVE-2019-19536: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_pro.c driver (bnc#1158394).

CVE-2019-19524: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/input/ff-memless.c driver (bnc#1158413).

CVE-2019-19534: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_core.c driver (bnc#1158398).

CVE-2019-14901: A heap overflow flaw was found in the Linux kernel in Marvell WiFi chip driver. The vulnerability allowed a remote attacker to cause a system crash, resulting in a denial of service, or execute arbitrary code. The highest threat with this vulnerability is with the availability of the system. If code execution occurs, the code will run with the permissions of root. This will affect both confidentiality and integrity of files on the system (bnc#1157042).

CVE-2019-14895: Fixed a heap-based buffer overflow in the Marvell WiFi chip driver. The flaw could occur when the station attempts a connection negotiation during the handling of the remote devices country settings. This could allow the remote device to cause a denial of service (system crash) or possibly execute arbitrary code (bnc#1157158).

CVE-2019-18660: Fixed a information disclosure on powerpc related to the Spectre-RSB mitigation. This is related to arch/powerpc/kernel/entry_64.S and arch/powerpc/kernel/security.c (bnc#1157038 1157923).

CVE-2019-18683: Fixed a privilege escalation where local users have /dev/video0 access, but only if the driver happens to be loaded. There are multiple race conditions during streaming stopping in this driver (part of the V4L2 subsystem) (bnc#1155897).

CVE-2019-19062: Fixed a memory leak in the crypto_report() function in crypto/crypto_user_base.c, which allowed attackers to cause a denial of service (memory consumption) by triggering crypto_report_alg() failures (bnc#1157333).

CVE-2019-19052: A memory leak in the gs_can_open() function in drivers/net/can/usb/gs_usb.c allowed attackers to cause a denial of service (memory consumption) by triggering usb_submit_urb() failures (bnc#1157324).

CVE-2019-19074: A memory leak in the ath9k_wmi_cmd() function in drivers/net/wireless/ath/ath9k/wmi.c allowed attackers to cause a denial of service (memory consumption) (bnc#1157143).

CVE-2019-19073: Memory leaks in drivers/net/wireless/ath/ath9k/htc_hst.c allowed attackers to cause a denial of service (memory consumption) by triggering wait_for_completion_timeout() failures (bnc#1157070).

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 OpenStack Cloud 7 :

zypper in -t patch SUSE-OpenStack-Cloud-7-2020-1255=1

SUSE Linux Enterprise Server for SAP 12-SP2 :

zypper in -t patch SUSE-SLE-SAP-12-SP2-2020-1255=1

SUSE Linux Enterprise Server 12-SP2-LTSS :

zypper in -t patch SUSE-SLE-SERVER-12-SP2-2020-1255=1

SUSE Linux Enterprise Server 12-SP2-BCL :

zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2020-1255=1

SUSE Linux Enterprise High Availability 12-SP2 :

zypper in -t patch SUSE-SLE-HA-12-SP2-2020-1255=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1037216

https://bugzilla.suse.com/show_bug.cgi?id=1075091

https://bugzilla.suse.com/show_bug.cgi?id=1075994

https://bugzilla.suse.com/show_bug.cgi?id=1087082

https://bugzilla.suse.com/show_bug.cgi?id=1087813

https://bugzilla.suse.com/show_bug.cgi?id=1091041

https://bugzilla.suse.com/show_bug.cgi?id=1099279

https://bugzilla.suse.com/show_bug.cgi?id=1120386

https://bugzilla.suse.com/show_bug.cgi?id=1131107

https://bugzilla.suse.com/show_bug.cgi?id=1133147

https://bugzilla.suse.com/show_bug.cgi?id=1136449

https://bugzilla.suse.com/show_bug.cgi?id=1137325

https://bugzilla.suse.com/show_bug.cgi?id=1146519

https://bugzilla.suse.com/show_bug.cgi?id=1146544

https://bugzilla.suse.com/show_bug.cgi?id=1146612

https://bugzilla.suse.com/show_bug.cgi?id=1149591

https://bugzilla.suse.com/show_bug.cgi?id=1153811

https://bugzilla.suse.com/show_bug.cgi?id=1154844

https://bugzilla.suse.com/show_bug.cgi?id=1155311

https://bugzilla.suse.com/show_bug.cgi?id=1155897

https://bugzilla.suse.com/show_bug.cgi?id=1156060

https://bugzilla.suse.com/show_bug.cgi?id=1157038

https://bugzilla.suse.com/show_bug.cgi?id=1157042

https://bugzilla.suse.com/show_bug.cgi?id=1157070

https://bugzilla.suse.com/show_bug.cgi?id=1157143

https://bugzilla.suse.com/show_bug.cgi?id=1157155

https://bugzilla.suse.com/show_bug.cgi?id=1157157

https://bugzilla.suse.com/show_bug.cgi?id=1157158

https://bugzilla.suse.com/show_bug.cgi?id=1157303

https://bugzilla.suse.com/show_bug.cgi?id=1157324

https://bugzilla.suse.com/show_bug.cgi?id=1157333

https://bugzilla.suse.com/show_bug.cgi?id=1157464

https://bugzilla.suse.com/show_bug.cgi?id=1157804

https://bugzilla.suse.com/show_bug.cgi?id=1157923

https://bugzilla.suse.com/show_bug.cgi?id=1158021

https://bugzilla.suse.com/show_bug.cgi?id=1158132

https://bugzilla.suse.com/show_bug.cgi?id=1158381

https://bugzilla.suse.com/show_bug.cgi?id=1158394

https://bugzilla.suse.com/show_bug.cgi?id=1158398

https://bugzilla.suse.com/show_bug.cgi?id=1158410

https://bugzilla.suse.com/show_bug.cgi?id=1158413

https://bugzilla.suse.com/show_bug.cgi?id=1158417

https://bugzilla.suse.com/show_bug.cgi?id=1158427

https://bugzilla.suse.com/show_bug.cgi?id=1158445

https://bugzilla.suse.com/show_bug.cgi?id=1158819

https://bugzilla.suse.com/show_bug.cgi?id=1158823

https://bugzilla.suse.com/show_bug.cgi?id=1158824

https://bugzilla.suse.com/show_bug.cgi?id=1158827

https://bugzilla.suse.com/show_bug.cgi?id=1158834

https://bugzilla.suse.com/show_bug.cgi?id=1158900

https://bugzilla.suse.com/show_bug.cgi?id=1158903

https://bugzilla.suse.com/show_bug.cgi?id=1158904

https://bugzilla.suse.com/show_bug.cgi?id=1159199

https://bugzilla.suse.com/show_bug.cgi?id=1159285

https://bugzilla.suse.com/show_bug.cgi?id=1159297

https://bugzilla.suse.com/show_bug.cgi?id=1159841

https://bugzilla.suse.com/show_bug.cgi?id=1159908

https://bugzilla.suse.com/show_bug.cgi?id=1159910

https://bugzilla.suse.com/show_bug.cgi?id=1159911

https://bugzilla.suse.com/show_bug.cgi?id=1159912

https://bugzilla.suse.com/show_bug.cgi?id=1160195

https://bugzilla.suse.com/show_bug.cgi?id=1162227

https://bugzilla.suse.com/show_bug.cgi?id=1162298

https://bugzilla.suse.com/show_bug.cgi?id=1162928

https://bugzilla.suse.com/show_bug.cgi?id=1162929

https://bugzilla.suse.com/show_bug.cgi?id=1162931

https://bugzilla.suse.com/show_bug.cgi?id=1163971

https://bugzilla.suse.com/show_bug.cgi?id=1164069

https://bugzilla.suse.com/show_bug.cgi?id=1164078

https://bugzilla.suse.com/show_bug.cgi?id=1164846

https://bugzilla.suse.com/show_bug.cgi?id=1165111

https://bugzilla.suse.com/show_bug.cgi?id=1165311

https://bugzilla.suse.com/show_bug.cgi?id=1165873

https://bugzilla.suse.com/show_bug.cgi?id=1165881

https://bugzilla.suse.com/show_bug.cgi?id=1165984

https://bugzilla.suse.com/show_bug.cgi?id=1165985

https://bugzilla.suse.com/show_bug.cgi?id=1167629

https://bugzilla.suse.com/show_bug.cgi?id=1168075

https://bugzilla.suse.com/show_bug.cgi?id=1168295

https://bugzilla.suse.com/show_bug.cgi?id=1168424

https://bugzilla.suse.com/show_bug.cgi?id=1168829

https://bugzilla.suse.com/show_bug.cgi?id=1168854

https://bugzilla.suse.com/show_bug.cgi?id=1170056

https://bugzilla.suse.com/show_bug.cgi?id=1170345

https://bugzilla.suse.com/show_bug.cgi?id=1170778

https://www.suse.com/security/cve/CVE-2017-18255/

https://www.suse.com/security/cve/CVE-2018-21008/

https://www.suse.com/security/cve/CVE-2019-14615/

https://www.suse.com/security/cve/CVE-2019-14895/

https://www.suse.com/security/cve/CVE-2019-14896/

https://www.suse.com/security/cve/CVE-2019-14897/

https://www.suse.com/security/cve/CVE-2019-14901/

https://www.suse.com/security/cve/CVE-2019-15213/

https://www.suse.com/security/cve/CVE-2019-18660/

https://www.suse.com/security/cve/CVE-2019-18675/

https://www.suse.com/security/cve/CVE-2019-18683/

https://www.suse.com/security/cve/CVE-2019-19052/

https://www.suse.com/security/cve/CVE-2019-19062/

https://www.suse.com/security/cve/CVE-2019-19066/

https://www.suse.com/security/cve/CVE-2019-19073/

https://www.suse.com/security/cve/CVE-2019-19074/

https://www.suse.com/security/cve/CVE-2019-19319/

https://www.suse.com/security/cve/CVE-2019-19332/

https://www.suse.com/security/cve/CVE-2019-19447/

https://www.suse.com/security/cve/CVE-2019-19523/

https://www.suse.com/security/cve/CVE-2019-19524/

https://www.suse.com/security/cve/CVE-2019-19525/

https://www.suse.com/security/cve/CVE-2019-19527/

https://www.suse.com/security/cve/CVE-2019-19530/

https://www.suse.com/security/cve/CVE-2019-19531/

https://www.suse.com/security/cve/CVE-2019-19532/

https://www.suse.com/security/cve/CVE-2019-19533/

https://www.suse.com/security/cve/CVE-2019-19534/

https://www.suse.com/security/cve/CVE-2019-19535/

https://www.suse.com/security/cve/CVE-2019-19536/

https://www.suse.com/security/cve/CVE-2019-19537/

https://www.suse.com/security/cve/CVE-2019-19767/

https://www.suse.com/security/cve/CVE-2019-19768/

https://www.suse.com/security/cve/CVE-2019-19965/

https://www.suse.com/security/cve/CVE-2019-19966/

https://www.suse.com/security/cve/CVE-2019-20054/

https://www.suse.com/security/cve/CVE-2019-20096/

https://www.suse.com/security/cve/CVE-2019-3701/

https://www.suse.com/security/cve/CVE-2019-5108/

https://www.suse.com/security/cve/CVE-2019-9455/

https://www.suse.com/security/cve/CVE-2019-9458/

https://www.suse.com/security/cve/CVE-2020-10690/

https://www.suse.com/security/cve/CVE-2020-10720/

https://www.suse.com/security/cve/CVE-2020-10942/

https://www.suse.com/security/cve/CVE-2020-11494/

https://www.suse.com/security/cve/CVE-2020-11608/

https://www.suse.com/security/cve/CVE-2020-11609/

https://www.suse.com/security/cve/CVE-2020-2732/

https://www.suse.com/security/cve/CVE-2020-8647/

https://www.suse.com/security/cve/CVE-2020-8648/

https://www.suse.com/security/cve/CVE-2020-8649/

https://www.suse.com/security/cve/CVE-2020-8992/

https://www.suse.com/security/cve/CVE-2020-9383/

http://www.nessus.org/u?11d53778

Plugin Details

Severity: Critical

ID: 136661

File Name: suse_SU-2020-1255-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2020/05/15

Updated: 2020/05/19

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: CVSS:3.0/E:U/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-base-debuginfo, 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-man, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kgraft-patch-4_4_121-92_129-default, cpe:/o:novell:suse_linux:12

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/05/12

Vulnerability Publication Date: 2018/03/31

Reference Information

CVE: CVE-2017-18255, CVE-2018-21008, CVE-2019-14615, CVE-2019-14895, CVE-2019-14896, CVE-2019-14897, CVE-2019-14901, CVE-2019-15213, CVE-2019-18660, CVE-2019-18675, CVE-2019-18683, CVE-2019-19052, CVE-2019-19062, CVE-2019-19066, CVE-2019-19073, CVE-2019-19074, CVE-2019-19319, CVE-2019-19332, CVE-2019-19447, CVE-2019-19523, CVE-2019-19524, CVE-2019-19525, CVE-2019-19527, CVE-2019-19530, CVE-2019-19531, CVE-2019-19532, CVE-2019-19533, CVE-2019-19534, CVE-2019-19535, CVE-2019-19536, CVE-2019-19537, CVE-2019-19767, CVE-2019-19768, CVE-2019-19965, CVE-2019-19966, CVE-2019-20054, CVE-2019-20096, CVE-2019-3701, CVE-2019-5108, CVE-2019-9455, CVE-2019-9458, CVE-2020-10690, CVE-2020-10720, CVE-2020-10942, CVE-2020-11494, CVE-2020-11608, CVE-2020-11609, CVE-2020-2732, CVE-2020-8647, CVE-2020-8648, CVE-2020-8649, CVE-2020-8992, CVE-2020-9383