This update for the Linux Kernel 4.4.74-92_35 fixes several issues.
The following security issues were fixed :

  - CVE-2017-13166: An elevation of privilege vulnerability     in the kernel v4l2 video driver was fixed.
    (bsc#1085447).

  - CVE-2018-8897: A statement in the System Programming     Guide of the Intel 64 and IA-32 Architectures Software     Developer's Manual (SDM) was mishandled in the     development of some or all operating-system kernels,     resulting in unexpected behavior for #DB exceptions that     are deferred by MOV SS or POP SS, as demonstrated by     (for example) privilege escalation in Windows, macOS,     some Xen configurations, or FreeBSD, or a Linux kernel     crash. The MOV to SS and POP SS instructions inhibit     interrupts (including NMIs), data breakpoints, and     single step trap exceptions until the instruction     boundary following the next instruction (SDM Vol. 3A;
    section 6.8.3). (The inhibited data breakpoints are     those on memory accessed by the MOV to SS or POP to SS     instruction itself.) Note that debug exceptions are not     inhibited by the interrupt enable (EFLAGS.IF) system     flag (SDM Vol. 3A; section 2.3). If the instruction     following the MOV to SS or POP to SS instruction is an     instruction like SYSCALL, SYSENTER, INT 3, etc. that     transfers control to the operating system at CPL is     complete. OS kernels may not expect this order of events     and may therefore experience unexpected behavior when it     occurs (bsc#1090368).

  - CVE-2018-8781: The udl_fb_mmap function in     drivers/gpu/drm/udl/udl_fb.c had an integer-overflow     vulnerability allowing local users with access to the     udldrmfb driver to obtain full read and write     permissions on kernel physical pages, resulting in a     code execution in kernel space (bsc#1090646).

  - bsc#1083125: Fixed kgraft: small race in reversion code

  - CVE-2018-1087: kernel KVM was vulnerable to a flaw in     the way the Linux kernel's KVM hypervisor handled     exceptions delivered after a stack switch operation via     Mov SS or Pop SS instructions. During the stack switch     operation, the processor did not deliver interrupts and     exceptions, rather they are delivered once the first     instruction after the stack switch is executed. An     unprivileged KVM guest user could use this flaw to crash     the guest or, potentially, escalate their privileges in     the guest (bsc#1090869) before

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.

This update for the Linux Kernel 3.12.61-52_86 fixes several issues.
The following security issues were fixed :

  - CVE-2017-13166: An elevation of privilege vulnerability     in the kernel v4l2 video driver was fixed.
    (bsc#1085447).

  - CVE-2018-8897: A statement in the System Programming     Guide of the Intel 64 and IA-32 Architectures Software     Developer's Manual (SDM) was mishandled in the     development of some or all operating-system kernels,     resulting in unexpected behavior for #DB exceptions that     are deferred by MOV SS or POP SS, as demonstrated by     (for example) privilege escalation in Windows, macOS,     some Xen configurations, or FreeBSD, or a Linux kernel     crash. The MOV to SS and POP SS instructions inhibit     interrupts (including NMIs), data breakpoints, and     single step trap exceptions until the instruction     boundary following the next instruction (SDM Vol. 3A;
    section 6.8.3). (The inhibited data breakpoints are     those on memory accessed by the MOV to SS or POP to SS     instruction itself.) Note that debug exceptions are not     inhibited by the interrupt enable (EFLAGS.IF) system     flag (SDM Vol. 3A; section 2.3). If the instruction     following the MOV to SS or POP to SS instruction is an     instruction like SYSCALL, SYSENTER, INT 3, etc. that     transfers control to the operating system at CPL is     complete. OS kernels may not expect this order of events     and may therefore experience unexpected behavior when it     occurs (bsc#1090368).

  - CVE-2018-8781: The udl_fb_mmap function in     drivers/gpu/drm/udl/udl_fb.c had an integer-overflow     vulnerability allowing local users with access to the     udldrmfb driver to obtain full read and write     permissions on kernel physical pages, resulting in a     code execution in kernel space (bsc#1090646).

  - bsc#1083125: Fixed kgraft: small race in reversion code

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.

This update for the Linux Kernel 3.12.61-52_119 fixes several issues.
The following security issues were fixed :

  - CVE-2017-13166: An elevation of privilege vulnerability     in the kernel v4l2 video driver was fixed.
    (bsc#1085447).

  - CVE-2018-8897: A statement in the System Programming     Guide of the Intel 64 and IA-32 Architectures Software     Developer's Manual (SDM) was mishandled in the     development of some or all operating-system kernels,     resulting in unexpected behavior for #DB exceptions that     are deferred by MOV SS or POP SS, as demonstrated by     (for example) privilege escalation in Windows, macOS,     some Xen configurations, or FreeBSD, or a Linux kernel     crash. The MOV to SS and POP SS instructions inhibit     interrupts (including NMIs), data breakpoints, and     single step trap exceptions until the instruction     boundary following the next instruction (SDM Vol. 3A;
    section 6.8.3). (The inhibited data breakpoints are     those on memory accessed by the MOV to SS or POP to SS     instruction itself.) Note that debug exceptions are not     inhibited by the interrupt enable (EFLAGS.IF) system     flag (SDM Vol. 3A; section 2.3). If the instruction     following the MOV to SS or POP to SS instruction is an     instruction like SYSCALL, SYSENTER, INT 3, etc. that     transfers control to the operating system at CPL is     complete. OS kernels may not expect this order of events     and may therefore experience unexpected behavior when it     occurs (bsc#1090368).

  - CVE-2018-8781: The udl_fb_mmap function in     drivers/gpu/drm/udl/udl_fb.c had an integer-overflow     vulnerability allowing local users with access to the     udldrmfb driver to obtain full read and write     permissions on kernel physical pages, resulting in a     code execution in kernel space (bsc#1090646).

  - bsc#1083125: Fixed kgraft: small race in reversion code

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.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

  - CVE-2017-5715     Multiple researchers have discovered a vulnerability in     various processors supporting speculative execution,     enabling an attacker controlling an unprivileged process     to read memory from arbitrary addresses, including from     the kernel and all other processes running on the     system.

  This specific attack has been named Spectre variant 2 (branch target   injection) and is mitigated in the Linux kernel for the Intel x86-64   architecture by using the 'retpoline' compiler feature which allows   indirect branches to be isolated from speculative execution.

  - CVE-2017-5754     Multiple researchers have discovered a vulnerability in     Intel processors, enabling an attacker controlling an     unprivileged process to read memory from arbitrary     addresses, including from the kernel and all other     processes running on the system.

  This specific attack has been named Meltdown and is addressed in the   Linux kernel on the powerpc/ppc64el architectures by flushing the L1   data cache on exit from kernel mode to user mode (or from hypervisor   to kernel).

  This works on Power7, Power8 and Power9 processors.

  - CVE-2017-13166     A bug in the 32-bit compatibility layer of the v4l2     IOCTL handling code has been found. Memory protections     ensuring user-provided buffers always point to userland     memory were disabled, allowing destination address to be     in kernel space. This bug could be exploited by an     attacker to overwrite kernel memory from an unprivileged     userland process, leading to privilege escalation.

  - CVE-2018-5750     An information leak has been found in the Linux kernel.
    The acpi_smbus_hc_add() prints a kernel address in the     kernel log at every boot, which could be used by an     attacker on the system to defeat kernel ASLR.

Additionnaly to those vulnerability, some mitigations for CVE-2017-5753 are included in this release.

  - CVE-2017-5753     Multiple researchers have discovered a vulnerability in     various processors supporting speculative execution,     enabling an attacker controlling an unprivileged process     to read memory from arbitrary addresses, including from     the kernel and all other processes running on the     system.

  This specific attack has been named Spectre variant 1 (bounds-check   bypass) and is mitigated in the Linux kernel architecture by   identifying vulnerable code sections (array bounds checking followed   by array access) and replacing the array access with the   speculation-safe array_index_nospec() function.

  More use sites will be added over time.

ID	Name	Product	Family	Published	Updated	Severity
110367	SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1534-1)	Nessus	SuSE Local Security Checks	6/6/2018	9/25/2024	high
110373	SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1540-1)	Nessus	SuSE Local Security Checks	6/6/2018	9/25/2024	high
110375	SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1543-1)	Nessus	SuSE Local Security Checks	6/6/2018	9/25/2024	high
106955	Debian DSA-4120-1 : linux - security update (Meltdown) (Spectre)	Nessus	Debian Local Security Checks	2/23/2018	1/13/2026	high

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