http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=384632e67e0829deb8015ee6ad916b180049d252

102516

RHSA-2018:0676

RHSA-2018:1062

https://access.redhat.com/security/cve/CVE-2017-15126

https://bugzilla.redhat.com/show_bug.cgi?id=1523481

https://github.com/torvalds/linux/commit/384632e67e0829deb8015ee6ad916b180049d252

https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.6

Security Fix(es) :

  - hw: cpu: speculative execution permission faults     handling (CVE-2017-5754, Important, KVM for Power)

  - kernel: Buffer overflow in firewire driver via crafted     incoming packets (CVE-2016-8633, Important)

  - kernel: Use-after-free vulnerability in DCCP socket     (CVE-2017-8824, Important)

  - Kernel: kvm: nVMX: L2 guest could access hardware(L0)     CR8 register (CVE-2017-12154, Important)

  - kernel: v4l2: disabled memory access protection     mechanism allowing privilege escalation (CVE-2017-13166,     Important)

  - kernel: media: use-after-free in [tuner-xc2028] media     driver (CVE-2016-7913, Moderate)

  - kernel: drm/vmwgfx: fix integer overflow in     vmw_surface_define_ioctl() (CVE-2017-7294, Moderate)

  - kernel: Incorrect type conversion for size during dma     allocation (CVE-2017-9725, Moderate)

  - kernel: memory leak when merging buffers in SCSI IO     vectors (CVE-2017-12190, Moderate)

  - kernel: vfs: BUG in truncate_inode_pages_range() and     fuse client (CVE-2017-15121, Moderate)

  - kernel: Use-after-free in     userfaultfd_event_wait_completion function in     userfaultfd.c (CVE-2017-15126, Moderate)

  - kernel: net: double-free and memory corruption in     get_net_ns_by_id() (CVE-2017-15129, Moderate)

  - kernel: Use-after-free in snd_seq_ioctl_create_port()     (CVE-2017-15265, Moderate)

  - kernel: Missing capabilities check in     net/netfilter/nfnetlink_cthelper.c allows for     unprivileged access to systemwide nfnl_cthelper_list     structure (CVE-2017-17448, Moderate)

  - kernel: Missing namespace check in     net/netlink/af_netlink.c allows for network monitors to     observe systemwide activity (CVE-2017-17449, Moderate)

  - kernel: Unallocated memory access by malicious USB     device via bNumInterfaces overflow (CVE-2017-17558,     Moderate)

  - kernel: netfilter: use-after-free in     tcpmss_mangle_packet function in     net/netfilter/xt_TCPMSS.c (CVE-2017-18017, Moderate)

  - kernel: Race condition in     drivers/md/dm.c:dm_get_from_kobject() allows local users     to cause a denial of service (CVE-2017-18203, Moderate)

  - kernel: kvm: Reachable BUG() on out-of-bounds guest IRQ     (CVE-2017-1000252, Moderate)

  - Kernel: KVM: DoS via write flood to I/O port 0x80     (CVE-2017-1000407, Moderate)

  - kernel: Stack information leak in the EFS element     (CVE-2017-1000410, Moderate)

  - kernel: Kernel address information leak in     drivers/acpi/sbshc.c:acpi_smbus_hc_add() function     potentially allowing KASLR bypass (CVE-2018-5750,     Moderate)

  - kernel: Race condition in sound system can lead to     denial of service (CVE-2018-1000004, Moderate)

  - kernel: multiple Low security impact security issues     (CVE-2016-3672, CVE-2017-14140, CVE-2017-15116,     CVE-2017-15127, CVE-2018-6927, Low)

Additional Changes :

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es) :

* hw: cpu: speculative execution permission faults handling (CVE-2017-5754, Important, KVM for Power)

* kernel: Buffer overflow in firewire driver via crafted incoming packets (CVE-2016-8633, Important)

* kernel: Use-after-free vulnerability in DCCP socket (CVE-2017-8824, Important)

* Kernel: kvm: nVMX: L2 guest could access hardware(L0) CR8 register (CVE-2017-12154, Important)

* kernel: v4l2: disabled memory access protection mechanism allowing privilege escalation (CVE-2017-13166, Important)

* kernel: media: use-after-free in [tuner-xc2028] media driver (CVE-2016-7913, Moderate)

* kernel: drm/vmwgfx: fix integer overflow in vmw_surface_define_ioctl() (CVE-2017-7294, Moderate)

* kernel: Incorrect type conversion for size during dma allocation (CVE-2017-9725, Moderate)

* kernel: memory leak when merging buffers in SCSI IO vectors (CVE-2017-12190, Moderate)

* kernel: vfs: BUG in truncate_inode_pages_range() and fuse client (CVE-2017-15121, Moderate)

* kernel: Use-after-free in userfaultfd_event_wait_completion function in userfaultfd.c (CVE-2017-15126, Moderate)

* kernel: net: double-free and memory corruption in get_net_ns_by_id() (CVE-2017-15129, Moderate)

* kernel: Use-after-free in snd_seq_ioctl_create_port() (CVE-2017-15265, Moderate)

* kernel: Missing capabilities check in net/netfilter/nfnetlink_cthelper.c allows for unprivileged access to systemwide nfnl_cthelper_list structure (CVE-2017-17448, Moderate)

* kernel: Missing namespace check in net/netlink/af_netlink.c allows for network monitors to observe systemwide activity (CVE-2017-17449, Moderate)

* kernel: Unallocated memory access by malicious USB device via bNumInterfaces overflow (CVE-2017-17558, Moderate)

* kernel: netfilter: use-after-free in tcpmss_mangle_packet function in net/ netfilter/xt_TCPMSS.c (CVE-2017-18017, Moderate)

* kernel: Race condition in drivers/md/dm.c:dm_get_from_kobject() allows local users to cause a denial of service (CVE-2017-18203, Moderate)

* kernel: kvm: Reachable BUG() on out-of-bounds guest IRQ (CVE-2017-1000252, Moderate)

* Kernel: KVM: DoS via write flood to I/O port 0x80 (CVE-2017-1000407, Moderate)

* kernel: Stack information leak in the EFS element (CVE-2017-1000410, Moderate)

* kernel: Kernel address information leak in drivers/acpi/ sbshc.c:acpi_smbus_hc_add() function potentially allowing KASLR bypass (CVE-2018-5750, Moderate)

* kernel: Race condition in sound system can lead to denial of service (CVE-2018-1000004, Moderate)

* kernel: multiple Low security impact security issues (CVE-2016-3672, CVE-2017-14140, CVE-2017-15116, CVE-2017-15127, CVE-2018-6927, Low)

Red Hat would like to thank Eyal Itkin for reporting CVE-2016-8633;
Google Project Zero for reporting CVE-2017-5754; Mohamed Ghannam for reporting CVE-2017-8824; Jim Mattson (Google.com) for reporting CVE-2017-12154; Vitaly Mayatskih for reporting CVE-2017-12190; Andrea Arcangeli (Engineering) for reporting CVE-2017-15126; Kirill Tkhai for reporting CVE-2017-15129; Jan H. Schonherr (Amazon) for reporting CVE-2017-1000252; and Armis Labs for reporting CVE-2017-1000410. The CVE-2017-15121 issue was discovered by Miklos Szeredi (Red Hat) and the CVE-2017-15116 issue was discovered by ChunYu Wang (Red Hat).

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section.

From Red Hat Security Advisory 2018:1062 :

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es) :

* hw: cpu: speculative execution permission faults handling (CVE-2017-5754, Important, KVM for Power)

* kernel: Buffer overflow in firewire driver via crafted incoming packets (CVE-2016-8633, Important)

* kernel: Use-after-free vulnerability in DCCP socket (CVE-2017-8824, Important)

* Kernel: kvm: nVMX: L2 guest could access hardware(L0) CR8 register (CVE-2017-12154, Important)

* kernel: v4l2: disabled memory access protection mechanism allowing privilege escalation (CVE-2017-13166, Important)

* kernel: media: use-after-free in [tuner-xc2028] media driver (CVE-2016-7913, Moderate)

* kernel: drm/vmwgfx: fix integer overflow in vmw_surface_define_ioctl() (CVE-2017-7294, Moderate)

* kernel: Incorrect type conversion for size during dma allocation (CVE-2017-9725, Moderate)

* kernel: memory leak when merging buffers in SCSI IO vectors (CVE-2017-12190, Moderate)

* kernel: vfs: BUG in truncate_inode_pages_range() and fuse client (CVE-2017-15121, Moderate)

* kernel: Use-after-free in userfaultfd_event_wait_completion function in userfaultfd.c (CVE-2017-15126, Moderate)

* kernel: net: double-free and memory corruption in get_net_ns_by_id() (CVE-2017-15129, Moderate)

* kernel: Use-after-free in snd_seq_ioctl_create_port() (CVE-2017-15265, Moderate)

* kernel: Missing capabilities check in net/netfilter/nfnetlink_cthelper.c allows for unprivileged access to systemwide nfnl_cthelper_list structure (CVE-2017-17448, Moderate)

* kernel: Missing namespace check in net/netlink/af_netlink.c allows for network monitors to observe systemwide activity (CVE-2017-17449, Moderate)

* kernel: Unallocated memory access by malicious USB device via bNumInterfaces overflow (CVE-2017-17558, Moderate)

* kernel: netfilter: use-after-free in tcpmss_mangle_packet function in net/ netfilter/xt_TCPMSS.c (CVE-2017-18017, Moderate)

* kernel: Race condition in drivers/md/dm.c:dm_get_from_kobject() allows local users to cause a denial of service (CVE-2017-18203, Moderate)

* kernel: kvm: Reachable BUG() on out-of-bounds guest IRQ (CVE-2017-1000252, Moderate)

* Kernel: KVM: DoS via write flood to I/O port 0x80 (CVE-2017-1000407, Moderate)

* kernel: Stack information leak in the EFS element (CVE-2017-1000410, Moderate)

* kernel: Kernel address information leak in drivers/acpi/ sbshc.c:acpi_smbus_hc_add() function potentially allowing KASLR bypass (CVE-2018-5750, Moderate)

* kernel: Race condition in sound system can lead to denial of service (CVE-2018-1000004, Moderate)

* kernel: multiple Low security impact security issues (CVE-2016-3672, CVE-2017-14140, CVE-2017-15116, CVE-2017-15127, CVE-2018-6927, Low)

Red Hat would like to thank Eyal Itkin for reporting CVE-2016-8633;
Google Project Zero for reporting CVE-2017-5754; Mohamed Ghannam for reporting CVE-2017-8824; Jim Mattson (Google.com) for reporting CVE-2017-12154; Vitaly Mayatskih for reporting CVE-2017-12190; Andrea Arcangeli (Engineering) for reporting CVE-2017-15126; Kirill Tkhai for reporting CVE-2017-15129; Jan H. Schonherr (Amazon) for reporting CVE-2017-1000252; and Armis Labs for reporting CVE-2017-1000410. The CVE-2017-15121 issue was discovered by Miklos Szeredi (Red Hat) and the CVE-2017-15116 issue was discovered by ChunYu Wang (Red Hat).

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section.

An update for kernel-rt is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es) :

* kernel: Buffer overflow in firewire driver via crafted incoming packets (CVE-2016-8633, Important)

* kernel: Use-after-free vulnerability in DCCP socket (CVE-2017-8824, Important)

* Kernel: kvm: nVMX: L2 guest could access hardware(L0) CR8 register (CVE-2017-12154, Important)

* kernel: v4l2: disabled memory access protection mechanism allowing privilege escalation (CVE-2017-13166, Important)

* kernel: media: use-after-free in [tuner-xc2028] media driver (CVE-2016-7913, Moderate)

* kernel: drm/vmwgfx: fix integer overflow in vmw_surface_define_ioctl() (CVE-2017-7294, Moderate)

* kernel: Incorrect type conversion for size during dma allocation (CVE-2017-9725, Moderate)

* kernel: memory leak when merging buffers in SCSI IO vectors (CVE-2017-12190, Moderate)

* kernel: vfs: BUG in truncate_inode_pages_range() and fuse client (CVE-2017-15121, Moderate)

* kernel: Use-after-free in userfaultfd_event_wait_completion function in userfaultfd.c (CVE-2017-15126, Moderate)

* kernel: net: double-free and memory corruption in get_net_ns_by_id() (CVE-2017-15129, Moderate)

* kernel: Use-after-free in snd_seq_ioctl_create_port() (CVE-2017-15265, Moderate)

* kernel: Incorrect handling in arch/x86/include/asm/ mmu_context.h:init_new_context function allowing use-after-free (CVE-2017-17053, Moderate)

* kernel: Missing capabilities check in net/netfilter/nfnetlink_cthelper.c allows for unprivileged access to systemwide nfnl_cthelper_list structure (CVE-2017-17448, Moderate)

* kernel: Missing namespace check in net/netlink/af_netlink.c allows for network monitors to observe systemwide activity (CVE-2017-17449, Moderate)

* kernel: Unallocated memory access by malicious USB device via bNumInterfaces overflow (CVE-2017-17558, Moderate)

* kernel: netfilter: use-after-free in tcpmss_mangle_packet function in net/ netfilter/xt_TCPMSS.c (CVE-2017-18017, Moderate)

* kernel: Race condition in drivers/md/dm.c:dm_get_from_kobject() allows local users to cause a denial of service (CVE-2017-18203, Moderate)

* kernel: kvm: Reachable BUG() on out-of-bounds guest IRQ (CVE-2017-1000252, Moderate)

* Kernel: KVM: DoS via write flood to I/O port 0x80 (CVE-2017-1000407, Moderate)

* kernel: Stack information leak in the EFS element (CVE-2017-1000410, Moderate)

* kernel: Kernel address information leak in drivers/acpi/ sbshc.c:acpi_smbus_hc_add() function potentially allowing KASLR bypass (CVE-2018-5750, Moderate)

* kernel: Race condition in sound system can lead to denial of service (CVE-2018-1000004, Moderate)

* kernel: unlimiting the stack disables ASLR (CVE-2016-3672, Low)

* kernel: Missing permission check in move_pages system call (CVE-2017-14140, Low)

* kernel: NULL pointer dereference in rngapi_reset function (CVE-2017-15116, Low)

* kernel: Improper error handling of VM_SHARED hugetlbfs mapping in mm/ hugetlb.c (CVE-2017-15127, Low)

* kernel: Integer overflow in futex.c:futux_requeue can lead to denial of service or unspecified impact (CVE-2018-6927, Low)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank Eyal Itkin for reporting CVE-2016-8633;
Mohamed Ghannam for reporting CVE-2017-8824; Jim Mattson (Google.com) for reporting CVE-2017-12154; Vitaly Mayatskih for reporting CVE-2017-12190; Andrea Arcangeli (Engineering) for reporting CVE-2017-15126; Kirill Tkhai for reporting CVE-2017-15129; Jan H.
Schonherr (Amazon) for reporting CVE-2017-1000252; and Armis Labs for reporting CVE-2017-1000410. The CVE-2017-15121 issue was discovered by Miklos Szeredi (Red Hat) and the CVE-2017-15116 issue was discovered by ChunYu Wang (Red Hat).

Additional Changes :

See the Red Hat Enterprise Linux 7.5 Release Notes linked from References.

ID	Name	Product	Family	Severity
109449	Scientific Linux Security Update : kernel on SL7.x x86_64 (Meltdown)	Nessus	Scientific Linux Local Security Checks	critical
109380	CentOS 7 : kernel (CESA-2018:1062)	Nessus	CentOS Local Security Checks	critical
109113	Oracle Linux 7 : kernel (ELSA-2018-1062)	Nessus	Oracle Linux Local Security Checks	critical
108997	RHEL 7 : kernel (RHSA-2018:1062)	Nessus	Red Hat Local Security Checks	critical
108984	RHEL 7 : kernel-rt (RHSA-2018:0676)	Nessus	Red Hat Local Security Checks	critical

CVE-2017-15126

Description

References

Details

Risk Information

CVSS v2.0

CVSS v3.0

Vulnerable Software

Configuration 1

Tenable Plugins