SUSE: 2022:3688-1 important: the Linux Kernel
Summary
The SUSE Linux Enterprise 15 kernel was updated. The following security bugs were fixed: - CVE-2022-3303: Fixed a race condition in the sound subsystem due to improper locking (bnc#1203769). - CVE-2022-41218: Fixed an use-after-free caused by refcount races in drivers/media/dvb-core/dmxdev.c (bnc#1202960). - CVE-2022-3239: Fixed an use-after-free in the video4linux driver that could lead a local user to able to crash the system or escalate their privileges (bnc#1203552). - CVE-2022-41848: Fixed a race condition and resultant use-after-free if a physically proximate attacker removes a PCMCIA device while calling ioctl (bnc#1203987). - CVE-2022-2503: Fixed a bug in dm-verity, device-mapper table reloads allowed users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allowed root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates (bnc#1202677). The following non-security bugs were fixed: - dtb: Do not include sources in src.rpm - refer to kernel-source Same as other kernel binary packages there is no need to carry duplicate sources in dtb packages. - net: mana: Add rmb after checking owner bits (git-fixes). - net: mana: Add the Linux MANA PF driver (bug#1201309, jsc#PED-529). - x86/bugs: Reenable retbleed=off While for older kernels the return thunks are statically built in and cannot be dynamically patched out, retbleed=off should still be possible to do so that the mitigation can still be disabled on Intel who do not use the return thunks but IBRS.
References
#1201309 #1202385 #1202677 #1202960 #1203552
#1203769 #1203987
Cross- CVE-2022-2503 CVE-2022-3239 CVE-2022-3303
CVE-2022-41218 CVE-2022-41848
CVSS scores:
CVE-2022-2503 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2022-2503 (SUSE): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2022-3239 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2022-3239 (SUSE): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2022-3303 (NVD) : 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2022-3303 (SUSE): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CVE-2022-41218 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2022-41218 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2022-41848 (NVD) : 4.2 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2022-41848 (SUSE): 6.4 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:
SUSE Linux Enterprise High Availability 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing 15-ESPOS
SUSE Linux Enterprise High Performance Computing 15-LTSS
SUSE Linux Enterprise Module for Live Patching 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server 15-LTSS
SUSE Linux Enterprise Server for SAP 15
SUSE Linux Enterprise Server for SAP Applications 15
https://www.suse.com/security/cve/CVE-2022-2503.html
https://www.suse.com/security/cve/CVE-2022-3239.html
https://www.suse.com/security/cve/CVE-2022-3303.html
https://www.suse.com/security/cve/CVE-2022-41218.html
https://www.suse.com/security/cve/CVE-2022-41848.html
https://bugzilla.suse.com/1201309
https://bugzilla.suse.com/1202385
https://bugzilla.suse.com/1202677
https://bugzilla.suse.com/1202960
https://bugzilla.suse.com/1203552
https://bugzilla.suse.com/1203769
https://bugzilla.suse.com/1203987
