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SUSE-SU-2022:2827-1 Not scored

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2020-36557: Fixed race condition between the VT_DISALLOCATE ioctl and closing/opening of ttys that could lead to a use-after-free (bnc#1201429). - CVE-2020-36558: Fixed race condition involving VT_RESIZEX that could lead to a NULL pointer dereference and general protection fault (bnc#1200910). - CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635). - CVE-2021-33656: Fixed out of bounds write with ioctl PIO_FONT (bnc#1201636). - CVE-2022-1462: Fixed an out-of-bounds read flaw in the TeleTYpe subsystem (bnc#1198829). - CVE-2022-20166: Fixed possible out of bounds write due to sprintf unsafety that could cause local escalation of privilege (bnc#1200598). - CVE-2022-36946: Fixed incorrect packet truncation in nfqnl_mangle() that could lead to remote DoS (bnc#1201940). The following non-security bugs were fixed: - cifs: On cifs_reconnect, resolve the hostname again (bsc#1201926). - cifs: Simplify reconnect code when dfs upcall is enabled (bsc#1201926). - cifs: To match file servers, make sure the server hostname matches (bsc#1201926). - cifs: fix memory leak of smb3_fs_context_dup::server_hostname (bsc#1201926). - cifs: set a minimum of 120s for next dns resolution (bsc#1201926). - cifs: use the expiry output of dns_query to schedule next resolution (bsc#1201926). - kvm: emulate: Fix SETcc emulation function offsets with SLS (bsc#1201930). - kvm: emulate: do not adjust size of fastop and setcc subroutines (bsc#1201930). - rpm/*.spec.in: remove backtick usage - rpm/constraints.in: skip SLOW_DISK workers for kernel-source - rpm/kernel-obs-build.spec.in: Also depend on dracut-systemd (bsc#1195775) - rpm/kernel-obs-build.spec.in: add systemd-initrd and terminfo dracut module (bsc#1195775) - rpm/kernel-obs-build.spec.in: use default dracut modules (bsc#1195926, bsc#1198484) - x86/entry: Remove skip_r11rcx (bsc#1201644).

Exploit probability Not scored
Published August 16, 2022
Required by Not available
Last source change May 2, 2025

02 / AFFECTED SOFTWARE

Affected packages

SUSE:Linux Enterprise Live Patching 15 SP1 kernel-livepatch-SLE15-SP1_Update_33
SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS kernel-syms
openSUSE:Leap 15.4 kernel-default
SUSE:Linux Enterprise Server for SAP Applications 15 SP1 kernel-docs
SUSE:Enterprise Storage 6 kernel-docs
SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-obs-build
openSUSE:Leap 15.3 kernel-vanilla
SUSE:Linux Enterprise Server 15 SP1-LTSS kernel-obs-build
SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS kernel-docs
SUSE:Linux Enterprise Server for SAP Applications 15 SP1 kernel-syms
SUSE:Linux Enterprise Server 15 SP1-LTSS kernel-docs
SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS kernel-obs-build
openSUSE:Leap 15.3 kernel-zfcpdump
openSUSE:Leap 15.4 kernel-kvmsmall
SUSE:Enterprise Storage 6 kernel-obs-build
SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-default
SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS kernel-default
SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-syms
SUSE:Linux Enterprise Server for SAP Applications 15 SP1 kernel-source
SUSE:Linux Enterprise Server for SAP Applications 15 SP1 kernel-default
SUSE:Linux Enterprise Live Patching 15 SP1 kernel-default
SUSE:Linux Enterprise High Availability Extension 15 SP1 kernel-default
openSUSE:Leap 15.3 kernel-debug
SUSE:Linux Enterprise Server 15 SP1-LTSS kernel-default
SUSE:Linux Enterprise Server for SAP Applications 15 SP1 kernel-obs-build
SUSE:Linux Enterprise Server 15 SP1-LTSS kernel-zfcpdump
openSUSE:Leap 15.4 kernel-vanilla
SUSE:Linux Enterprise Server 15 SP1-BCL kernel-syms
SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-docs
SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS kernel-source
openSUSE:Leap 15.3 kernel-kvmsmall
SUSE:Enterprise Storage 6 kernel-default
SUSE:Linux Enterprise Server 15 SP1-LTSS kernel-syms
SUSE:Enterprise Storage 6 kernel-syms
SUSE:Linux Enterprise Server 15 SP1-BCL kernel-docs
openSUSE:Leap 15.3 kernel-default
SUSE:Enterprise Storage 6 kernel-source
SUSE:Linux Enterprise Server 15 SP1-BCL kernel-source
SUSE:Linux Enterprise Server 15 SP1-BCL kernel-default
openSUSE:Leap 15.4 kernel-zfcpdump
SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-source
openSUSE:Leap 15.4 kernel-debug
SUSE:Linux Enterprise Server 15 SP1-BCL kernel-obs-build
SUSE:Linux Enterprise Server 15 SP1-LTSS kernel-source

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities SUSE-SU-2022:2827-1

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2020-36557: Fixed race condition between the VT_DISALLOCATE ioctl and closing/opening of ttys that could lead to a use-after-free (bnc#1201429). - CVE-2020-36558: Fixed race condition involving VT_RESIZEX that could lead to a NULL pointer dereference and general protection fault (bnc#1200910). - CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635). - CVE-2021-33656: Fixed out of bounds write with ioctl PIO_FONT (bnc#1201636). - CVE-2022-1462: Fixed an out-of-bounds read flaw in the TeleTYpe subsystem (bnc#1198829). - CVE-2022-20166: Fixed possible out of bounds write due to sprintf unsafety that could cause local escalation of privilege (bnc#1200598). - CVE-2022-36946: Fixed incorrect packet truncation in nfqnl_mangle() that could lead to remote DoS (bnc#1201940). The following non-security bugs were fixed: - cifs: On cifs_reconnect, resolve the hostname again (bsc#1201926). - cifs: Simplify reconnect code when dfs upcall is enabled (bsc#1201926). - cifs: To match file servers, make sure the server hostname matches (bsc#1201926). - cifs: fix memory leak of smb3_fs_context_dup::server_hostname (bsc#1201926). - cifs: set a minimum of 120s for next dns resolution (bsc#1201926). - cifs: use the expiry output of dns_query to schedule next resolution (bsc#1201926). - kvm: emulate: Fix SETcc emulation function offsets with SLS (bsc#1201930). - kvm: emulate: do not adjust size of fastop and setcc subroutines (bsc#1201930). - rpm/*.spec.in: remove backtick usage - rpm/constraints.in: skip SLOW_DISK workers for kernel-source - rpm/kernel-obs-build.spec.in: Also depend on dracut-systemd (bsc#1195775) - rpm/kernel-obs-build.spec.in: add systemd-initrd and terminfo dracut module (bsc#1195775) - rpm/kernel-obs-build.spec.in: use default dracut modules (bsc#1195926, bsc#1198484) - x86/entry: Remove skip_r11rcx (bsc#1201644).

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05 / REFERENCES

Further evidence