SUSE: Security Advisory (SUSE-SU-2021:2756-1)

Published: 2021-08-19 02:25:52
CVE Author: NIST National Vulnerability Database

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

severity_vector=CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

severity_origin=NVD

severity_date=2021-07-08 05:15:00 +0000 (Thu, 08 Jul 2021)

Summary:
The remote host is missing an update for the 'Linux Kernel' Linux Distribution Package(s) announced via the SUSE-SU-2021:2756-1 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: CVE-2021-3659: Fixed a NULL pointer dereference in llsec_key_alloc() in net/mac802154/llsec.c (bsc#1188876). CVE-2021-21781: Fixed a information disclosure vulnerability in the ARM SIGPAGE (bsc#1188445). CVE-2021-22543: Fixed improper handling of VM_IOVM_PFNMAP vmas in KVM, which could bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allowed users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation (bsc#1186482). CVE-2021-37576: Fixed an issue on the powerpc platform, where a KVM guest OS user could cause host OS memory corruption via rtas_args.nargs (bsc#1188838). The following non-security bugs were fixed: ACPI: AMBA: Fix resource name in /proc/iomem (git-fixes). ACPI: video: Add quirk for the Dell Vostro 3350 (git-fixes). ALSA: ac97: fix PM reference leak in ac97_bus_remove() (git-fixes). ALSA: bebob: add support for ToneWeal FW66 (git-fixes). ALSA: hda: Add IRQ check for platform_get_irq() (git-fixes). ALSA: hdmi: Expose all pins on MSI MS-7C94 board (git-fixes). ALSA: ppc: fix error return code in snd_pmac_probe() (git-fixes). ALSA: sb: Fix potential ABBA deadlock in CSP driver (git-fixes). ALSA: sb: Fix potential double-free of CSP mixer elements (git-fixes). ALSA: usb-audio: Add registration quirk for JBL Quantum headsets (git-fixes). ALSA: usb-audio: scarlett2: Fix 18i8 Gen 2 PCM Input count (git-fixes). ALSA: usb-audio: scarlett2: Fix 6i6 Gen 2 line out descriptions (git-fixes). ALSA: usb-audio: scarlett2: Fix data_mutex lock (git-fixes). ALSA: usb-audio: scarlett2: Fix scarlett2_*_ctl_put() return values (git-fixes). ALSA: usx2y: Do not call free_pages_exact() with NULL address (git-fixes). ARM: ensure the signal page contains defined contents (bsc#1188445). ASoC: Intel: kbl_da7219_max98357a: shrink platform_id below 20 characters (git-fixes). ASoC: img: Fix PM reference leak in img_i2s_in_probe() (git-fixes). ASoC: rt5631: Fix regcache sync errors on resume (git-fixes). ASoC: soc-core: Fix the error return code in snd_soc_of_parse_audio_routing() (git-fixes). ASoC: tegra: Set driver_name=tegra for all machine drivers (git-fixes). Bluetooth: Fix the HCI to MGMT status conversion table (git-fixes). Bluetooth: Shutdown controller after workqueues are flushed or cancelled (git-fixes). Bluetooth: btusb: Fixed too many in-token issue for Mediatek Chip (git-fixes). Bluetooth: btusb: fix bt fiwmare downloading failure issue for qca btsoc (git-fixes). Input: hideep - fix the uninitialized use in hideep_nvm_unlock() (git-fixes). Input: ili210x - add missing negation for touch indication on ili210x (git-fixes). KVM: LAPIC: Prevent setting the tscdeadline ... [Please see the references for more information on the vulnerabilities]

Affected Versions:
'Linux Kernel' Linux Distribution Package(s) on SUSE Linux Enterprise High Availability 15-SP2, SUSE Linux Enterprise Module for Basesystem 15-SP2, SUSE Linux Enterprise Module for Development Tools 15-SP2, SUSE Linux Enterprise Module for Legacy Software 15-SP2, SUSE Linux Enterprise Module for Live Patching 15-SP2, SUSE Linux Enterprise Workstation Extension 15-SP2, SUSE MicroOS 5.0.

Recommendations:
Please install the updated Linux Distribution Package(s).

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2021-21781
https://nvd.nist.gov/vuln/detail/CVE-2021-22543
https://nvd.nist.gov/vuln/detail/CVE-2021-3659
https://nvd.nist.gov/vuln/detail/CVE-2021-37576

References:


https://www.suse.com/support/update/announcement/2021/suse-su-20212756-1/

Severity
High
CVSS Score
7.2
Published
2021-08-19
Modified
2021-08-23
Category
SuSE Local Security Checks

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