openSUSE-SU-2019:1757

http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html

https://bugs.chromium.org/p/project-zero/issues/detail?id=1879

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.9

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=de9f869616dd95e95c00bdd6b0fcd3421e8a4323

https://github.com/torvalds/linux/commit/de9f869616dd95e95c00bdd6b0fcd3421e8a4323

20190812 [SECURITY] [DSA 4495-1] linux security update

https://security.netapp.com/advisory/ntap-20190806-0001/

https://support.f5.com/csp/article/K13331647?utm_source=f5support&amp;utm_medium=RSS

USN-4093-1

USN-4094-1

USN-4117-1

USN-4118-1

DSA-4495

An update for kernel is now available for Red Hat Enterprise Linux 8.

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) :

* kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)

* Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)

* Kernel: page cache side channel attacks (CVE-2019-5489)

* hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506)

* kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net /wireless/marvell/mwifiex/ie.c (CVE-2019-10126)

* Kernel: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)

* kernel: Information Disclosure in crypto_report_one in crypto/crypto_user.c (CVE-2018-19854)

* kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS (CVE-2018-20169)

* kernel: Heap address information leak while using L2CAP_GET_CONF_OPT (CVE-2019-3459)

* kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP (CVE-2019-3460)

* kernel: SCTP socket buffer memory leak leading to denial of service (CVE-2019-3874)

* kernel: denial of service vector through vfio DMA mappings (CVE-2019-3882)

* kernel: NULL pointer dereference in hci_uart_set_flow_control (CVE-2019-10207)

* kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599)

* kernel: fs/ext4/extents.c leads to information disclosure (CVE-2019-11833)

* kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command (CVE-2019-11884)

* kernel: use-after-free in arch/x86/lib/insn-eval.c (CVE-2019-13233)

* kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service (CVE-2019-15916)

* kernel: Linux stack ASLR implementation Integer overflow (CVE-2015-1593)

* kernel: oob memory read in hso_probe in drivers/net/usb/hso.c (CVE-2018-19985)

* Kernel: KVM: leak of uninitialized stack contents to guest (CVE-2019-7222)

* Kernel: net: weak IP ID generation leads to remote device tracking (CVE-2019-10638)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, 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 8.1 Release Notes linked from the References section.

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.

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: nfs: use-after-free in svc_process_common() (CVE-2018-16884)

* Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)

* Kernel: page cache side channel attacks (CVE-2019-5489)

* hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506)

* kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net /wireless/marvell/mwifiex/ie.c (CVE-2019-10126)

* Kernel: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)

* kernel: Information Disclosure in crypto_report_one in crypto/crypto_user.c (CVE-2018-19854)

* kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS (CVE-2018-20169)

* kernel: Heap address information leak while using L2CAP_GET_CONF_OPT (CVE-2019-3459)

* kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP (CVE-2019-3460)

* kernel: SCTP socket buffer memory leak leading to denial of service (CVE-2019-3874)

* kernel: denial of service vector through vfio DMA mappings (CVE-2019-3882)

* kernel: NULL pointer dereference in hci_uart_set_flow_control (CVE-2019-10207)

* kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599)

* kernel: fs/ext4/extents.c leads to information disclosure (CVE-2019-11833)

* kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command (CVE-2019-11884)

* kernel: use-after-free in arch/x86/lib/insn-eval.c (CVE-2019-13233)

* kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service (CVE-2019-15916)

* kernel: oob memory read in hso_probe in drivers/net/usb/hso.c (CVE-2018-19985)

* Kernel: KVM: leak of uninitialized stack contents to guest (CVE-2019-7222)

* Kernel: net: weak IP ID generation leads to remote device tracking (CVE-2019-10638)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, 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 8.1 Release Notes linked from the References section.

The SUSE Linux Enterprise 15 SP1 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2018-12126 CVE-2018-12127 CVE-2018-12130: Microarchitectural Store Buffer Data Sampling (MSBDS): Stored buffers on some microprocessors utilizing speculative execution which may have allowed an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here :

https://www.intel.com/content/dam/www/public/us/en/documents/corporate
-info rmation/SA00233-microcode-update-guidance_05132019.
(bsc#1103186)CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may have allowed an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here :

https://www.intel.com/content/dam/www/public/us/en/documents/corporate
-info rmation/SA00233-microcode-update-guidance_05132019.
(bsc#1111331)CVE-2019-12382: An issue was discovered in drm_load_edid_firmware in drivers/gpu/drm/drm_edid_load.c in the Linux kernel There was an unchecked kstrdup of fwstr, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). (bsc#1136586)

CVE-2019-10124: An issue was discovered in the hwpoison implementation in mm/memory-failure.c in the Linux kernel. When soft_offline_in_use_page() runs on a thp tail page after pmd is split, an attacker could cause a denial of service (bsc#1130699).

CVE-2019-11486: The Siemens R3964 line discipline driver in drivers/tty/n_r3964.c in the Linux kernel has multiple race conditions. (bsc#1133188)

CVE-2019-11811: An issue was discovered in the Linux kernel There was a use-after-free upon attempted read access to /proc/ioports after the ipmi_si module was removed, related to drivers/char/ipmi/ipmi_si_intf.c, drivers/char/ipmi/ipmi_si_mem_io.c, and drivers/char/ipmi/ipmi_si_port_io.c. (bsc#1134397)

CVE-2019-11487: The Linux kernel allowed page reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It could occur with FUSE requests.
(bsc#1133190)

CVE-2019-12818: The nfc_llcp_build_tlv function in net/nfc/llcp_commands.c may return NULL. If the caller does not check for this, it will trigger a NULL pointer dereference. This will cause denial of service. This used to affect nfc_llcp_build_gb in net/nfc/llcp_core.c. (bsc#1138293)

CVE-2019-11833: fs/ext4/extents.c in the Linux kernel did not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem. (bsc#1135281)

CVE-2019-5489: The mincore() implementation in mm/mincore.c in the Linux kernel allowed local attackers to observe page cache access patterns of other processes on the same system, potentially allowing sniffing of secret information. (Fixing this affects the output of the fincore program.) Limited remote exploitation may be possible, as demonstrated by latency differences in accessing public files from an Apache HTTP Server. (bsc#1120843)

CVE-2018-7191: In the tun subsystem in the Linux kernel, dev_get_valid_name was not called before register_netdevice. This allowed local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. (bsc#1135603)

CVE-2019-11884: The do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c in the Linux kernel allowed a local user to obtain potentially sensitive information from kernel stack memory via a hidPCONNADD command, because a name field may not end with a '\0' character. (bsc#1134848)

CVE-2019-9500: An issue was discovered that lead to brcmfmac heap buffer overflow. (bsc#1132681)

CVE-2019-11085: Insufficient input validation in Kernel Mode Driver in Intel(R) i915 Graphics for Linux may have allowed an authenticated user to potentially enable escalation of privilege via local access.
(bsc#1135278)

CVE-2019-11815: An issue was discovered in rds_tcp_kill_sock in net/rds/tcp.c in the Linux kernel There was a race condition leading to a use-after-free, related to net namespace cleanup. (bsc#1135278)

CVE-2018-16880: A flaw was found in the Linux kernel's handle_rx() function in the [vhost_net] driver. A malicious virtual guest, under specific conditions, could trigger an out-of-bounds write in a kmalloc-8 slab on a virtual host which may have lead to a kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (bsc#1122767)

CVE-2019-12819: The function __mdiobus_register() called put_device(), which triggered a fixed_mdio_bus_init use-after-free. This would cause a denial of service. (bsc#1138291)

CVE-2019-3882: A flaw was found in the Linux kernel's vfio interface implementation that permitted violation of the user's locked memory limit. If a device was bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may have caused a system memory exhaustion and thus a denial of service (DoS). (bsc#1131427)

CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network. (bsc#1136424)

CVE-2019-8564: An issue was discoved which meant that brcmfmac frame validation could be bypassed. (bsc#1132673)

CVE-2019-9503: An issue was discoved which meant that brcmfmac frame validation could be bypassed. (bsc#1132828)

CVE-2019-9003: In the Linux kernel, attackers could trigger a drivers/char/ipmi/ipmi_msghandler.c use-after-free and OOPS by arranging for certain simultaneous execution of the code, as demonstrated by a 'service ipmievd restart' loop. (bsc#1126704)

CVE-2017-5753: Systems with microprocessors utilizing speculative execution and branch prediction may have allowed unauthorized disclosure of information to an attacker with local user access via a side-channel analysis.

CVE-2019-11478: It was possible to send a crafted sequence of SACKs which will fragment the TCP retransmission queue. An attacker may have been able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection.

CVE-2019-11479: An attacker could force the Linux kernel to segment its responses into multiple TCP segments. This would drastically increased the bandwidth required to deliver the same amount of data.
Further, it would consume additional resources such as CPU and NIC processing power.

CVE-2018-16871: A NULL pointer dereference due to an anomalized NFS message sequence was fixed. (bnc#1137103).

CVE-2019-12614: An issue was discovered in dlpar_parse_cc_property in arch/powerpc/platforms/pseries/dlpar.c. There was an unchecked kstrdup of prop->name, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash) (bnc#1137194).

CVE-2019-12817: On the PowerPC architecture, local attackers could access other users processes memory (bnc#1138263).

CVE-2018-20836: An issue was discovered in the Linux kernel There was a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free (bnc#1134395).

CVE-2019-10638: In the Linux kernel, a device could be tracked by an attacker using the IP ID values the kernel produces for connection-less protocols (e.g., UDP and ICMP). When such traffic was sent to multiple destination IP addresses, it was possible to obtain hash collisions (of indices to the counter array) and thereby obtain the hashing key (via enumeration). An attack may have been conducted by hosting a crafted web page that uses WebRTC or gQUIC to force UDP traffic to attacker-controlled IP addresses (bnc#1140575 1140577).

CVE-2019-10639: The Linux kernel allowed Information Exposure (partial kernel address disclosure), leading to a KASLR bypass. Specifically, it was possible to extract the KASLR kernel image offset using the IP ID values the kernel produces for connection-less protocols (e.g., UDP and ICMP). When such traffic was sent to multiple destination IP addresses, it was possible to obtain hash collisions (of indices to the counter array) and thereby obtain the hashing key (via enumeration). This key contains enough bits from a kernel address (of a static variable) so when the key was extracted (via enumeration), the offset of the kernel image was exposed. This attack could be carried out remotely, by the attacker forcing the target device to send UDP or ICMP (or certain other) traffic to attacker-controlled IP addresses. Forcing a server to send UDP traffic is trivial if the server is a DNS server. ICMP traffic is trivial if the server answers ICMP Echo requests (ping). For client targets, if the target visits the attacker's web page, then WebRTC or gQUIC can be used to force UDP traffic to attacker-controlled IP addresses. NOTE: this attack against KASLR became viable because IP ID generation was changed to have a dependency on an address associated with a network namespace (bnc#1140577).

CVE-2019-11599: The coredump implementation in the Linux kernel did not use locking or other mechanisms to prevent vma layout or vma flags changes while it ran, which allowed local users to obtain sensitive information, cause a denial of service, or possibly have unspecified other impact by triggering a race condition with mmget_not_zero or get_task_mm calls. This is related to fs/userfaultfd.c, mm/mmap.c, fs/proc/task_mmu.c, and drivers/infiniband/core/uverbs_main.c (bnc#1131645 1133738).

CVE-2019-13233: In arch/x86/lib/insn-eval.c in the Linux kernel, there was a use-after-free for access to an LDT entry because of a race condition between modify_ldt() and a #BR exception for an MPX bounds violation (bnc#1140454).

CVE-2018-20855: An issue was discovered in the Linux kernel In create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to userspace(bsc#1143045).

CVE-2019-1125: Exclude ATOMs from speculation through SWAPGS (bsc#1139358).

CVE-2019-11810: An issue was discovered in the Linux kernel A NULL pointer dereference could occur when megasas_create_frame_pool() failed in megasas_alloc_cmds() in drivers/scsi/megaraid/megaraid_sas_base.c. This caused a Denial of Service, related to a use-after-free (bnc#1134399).

CVE-2019-13631: In parse_hid_report_descriptor in drivers/input/tablet/gtco.c in the Linux kernel, a malicious USB device could send an HID report that triggered an out-of-bounds write during generation of debugging messages. (bnc#1142023)

CVE-2019-13648: In the Linux kernel on the powerpc platform, when hardware transactional memory was disabled, a local user could cause a denial of service (TM Bad Thing exception and system crash) via a sigreturn() system call that sent a crafted signal frame.
(bnc#1142254)

CVE-2019-14283: In the Linux kernel, set_geometry in drivers/block/floppy.c did not validate the sect and head fields, as demonstrated by an integer overflow and out-of-bounds read. It could be triggered by an unprivileged local user when a floppy disk was inserted. NOTE: QEMU creates the floppy device by default.
(bnc#1143191)

CVE-2019-14284: In the Linux kernel, drivers/block/floppy.c allows a denial of service by setup_format_params division-by-zero.
(bnc#1143189)

CVE-2019-12456: An issue was discovered in the MPT3COMMAND case in
_ctl_ioctl_main in drivers/scsi/mpt3sas/mpt3sas_ctl.c in the Linux. It allows local users to cause a denial of service or possibly have unspecified other impact by changing the value of ioc_number between two kernel reads of that value, aka a 'double fetch' vulnerability.
NOTE: a third-party reports that this is unexploitable because the doubly fetched value is not used. (bsc#1136922)

CVE-2019-12380: An issue was discovered in the efi subsystem in the Linux kernel phys_efi_set_virtual_address_map in arch/x86/platform/efi/efi.c and efi_call_phys_prolog in arch/x86/platform/efi/efi_64.c mishandle memory allocation failures.
(bsc#1136598)

The update package also includes non-security fixes. See advisory for details.

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.

It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053)

Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13093)

Wen Xu discovered that the f2fs file system implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious f2fs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13096, CVE-2018-13097, CVE-2018-13098, CVE-2018-13099, CVE-2018-13100, CVE-2018-14614, CVE-2018-14615, CVE-2018-14616)

Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation in the Linux kernel did not properly validate metadata.
An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service (system crash).
(CVE-2018-14609, CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14613)

Wen Xu discovered that the HFS+ filesystem implementation in the Linux kernel did not properly handle malformed catalog data in some situations. An attacker could use this to construct a malicious HFS+ image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14617)

Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem of the Linux kernel did not properly initialize new files in some situations. A local attacker could use this to expose sensitive information. (CVE-2018-16862)

Hui Peng and Mathias Payer discovered that the Option USB High Speed driver in the Linux kernel did not properly validate metadata received from the device. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-19985)

Hui Peng and Mathias Payer discovered that the USB subsystem in the Linux kernel did not properly handle size checks when handling an extra USB descriptor. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-20169)

Zhipeng Xie discovered that an infinite loop could triggered in the CFS Linux kernel process scheduler. A local attacker could possibly use this to cause a denial of service. (CVE-2018-20784)

It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel when certain failure conditions occurred. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2018-20856)

Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux kernel did not properly validate elliptic curve parameters during Diffie-Hellman key exchange in some situations. An attacker could use this to expose sensitive information. (CVE-2018-5383)

It was discovered that the Intel wifi device driver in the Linux kernel did not properly validate certain Tunneled Direct Link Setup (TDLS). A physically proximate attacker could use this to cause a denial of service (wifi disconnect). (CVE-2019-0136)

It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10126)

It was discovered that the Bluetooth UART implementation in the Linux kernel did not properly check for missing tty operations. A local attacker could use this to cause a denial of service. (CVE-2019-10207)

Amit Klein and Benny Pinkas discovered that the Linux kernel did not sufficiently randomize IP ID values generated for connectionless networking protocols. A remote attacker could use this to track particular Linux devices. (CVE-2019-10638)

Amit Klein and Benny Pinkas discovered that the location of kernel addresses could exposed by the implementation of connection-less network protocols in the Linux kernel. A remote attacker could possibly use this to assist in the exploitation of another vulnerability in the Linux kernel. (CVE-2019-10639)

Adam Zabrocki discovered that the Intel i915 kernel mode graphics driver in the Linux kernel did not properly restrict mmap() ranges in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2019-11085)

It was discovered that an integer overflow existed in the Linux kernel when reference counting pages, leading to potential use-after-free issues. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-11487)

Jann Horn discovered that a race condition existed in the Linux kernel when performing core dumps. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information.
(CVE-2019-11599)

It was discovered that a NULL pointer dereference vulnerability existed in the LSI Logic MegaRAID driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash).
(CVE-2019-11810)

It was discovered that a race condition leading to a use-after-free existed in the Reliable Datagram Sockets (RDS) protocol implementation in the Linux kernel. The RDS protocol is blacklisted by default in Ubuntu. If enabled, a local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2019-11815)

It was discovered that the ext4 file system implementation in the Linux kernel did not properly zero out memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-11833)

It was discovered that the Bluetooth Human Interface Device Protocol (HIDP) implementation in the Linux kernel did not properly verify strings were NULL terminated in certain situations. A local attacker could use this to expose sensitive information (kernel memory).
(CVE-2019-11884)

It was discovered that a NULL pointer dereference vulnerabilty existed in the Near-field communication (NFC) implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2019-12818)

It was discovered that the MDIO bus devices subsystem in the Linux kernel improperly dropped a device reference in an error condition, leading to a use-after-free. An attacker could use this to cause a denial of service (system crash). (CVE-2019-12819)

It was discovered that a NULL pointer dereference vulnerability existed in the Near-field communication (NFC) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-12984)

Jann Horn discovered a use-after-free vulnerability in the Linux kernel when accessing LDT entries in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-13233)

Jann Horn discovered that the ptrace implementation in the Linux kernel did not properly record credentials in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2019-13272)

It was discovered that the GTCO tablet input driver in the Linux kernel did not properly bounds check the initial HID report sent by the device. A physically proximate attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2019-13631)

It was discovered that the floppy driver in the Linux kernel did not properly validate meta data, leading to a buffer overread. A local attacker could use this to cause a denial of service (system crash).
(CVE-2019-14283)

It was discovered that the floppy driver in the Linux kernel did not properly validate ioctl() calls, leading to a division-by-zero. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-14284)

Tuba Yavuz discovered that a race condition existed in the DesignWare USB3 DRD Controller device driver in the Linux kernel. A physically proximate attacker could use this to cause a denial of service.
(CVE-2019-14763)

It was discovered that an out-of-bounds read existed in the QLogic QEDI iSCSI Initiator Driver in the Linux kernel. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2019-15090)

It was discovered that the Raremono AM/FM/SW radio device driver in the Linux kernel did not properly allocate memory, leading to a use-after-free. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code.
(CVE-2019-15211)

It was discovered at a double-free error existed in the USB Rio 500 device driver for the Linux kernel. A physically proximate attacker could use this to cause a denial of service. (CVE-2019-15212)

It was discovered that a race condition existed in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linux kernel, leading to a potential use-after-free. A physically proximate attacker could use this to cause a denial of service (system crash) pro possibly execute arbitrary code. (CVE-2019-15214)

It was discovered that a race condition existed in the CPiA2 video4linux device driver for the Linux kernel, leading to a use-after-free. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-15215)

It was discovered that a race condition existed in the Softmac USB Prism54 device driver in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash).
(CVE-2019-15220)

It was discovered that a use-after-free vulnerability existed in the Appletalk implementation in the Linux kernel if an error occurs during initialization. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-15292)

It was discovered that the Empia EM28xx DVB USB device driver implementation in the Linux kernel contained a use-after-free vulnerability when disconnecting the device. An attacker could use this to cause a denial of service (system crash). (CVE-2019-2024)

It was discovered that the USB video device class implementation in the Linux kernel did not properly validate control bits, resulting in an out of bounds buffer read. A local attacker could use this to possibly expose sensitive information (kernel memory). (CVE-2019-2101)

It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly validate the BSS descriptor. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-3846)

Jason Wang discovered that an infinite loop vulnerability existed in the virtio net driver in the Linux kernel. A local attacker in a guest VM could possibly use this to cause a denial of service in the host system. (CVE-2019-3900)

Daniele Antonioli, Nils Ole Tippenhauer, and Kasper B. Rasmussen discovered that the Bluetooth protocol BR/EDR specification did not properly require sufficiently strong encryption key lengths. A physicall proximate attacker could use this to expose sensitive information. (CVE-2019-9506)

It was discovered that the Appletalk IP encapsulation driver in the Linux kernel did not properly prevent kernel addresses from being copied to user space. A local attacker with the CAP_NET_ADMIN capability could use this to expose sensitive information.
(CVE-2018-20511)

It was discovered that a race condition existed in the USB YUREX device driver in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash).
(CVE-2019-15216)

It was discovered that the Siano USB MDTV receiver device driver in the Linux kernel made improper assumptions about the device characteristics. A physically proximate attacker could use this cause a denial of service (system crash). (CVE-2019-15218)

It was discovered that the Line 6 POD USB device driver in the Linux kernel did not properly validate data size information from the device. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15221)

Muyu Yu discovered that the CAN implementation in the Linux kernel in some situations did not properly restrict the field size when processing outgoing frames. A local attacker with CAP_NET_ADMIN privileges could use this to execute arbitrary code. (CVE-2019-3701)

Vladis Dronov discovered that the debug interface for the Linux kernel's HID subsystem did not properly validate passed parameters in some situations. A local privileged attacker could use this to cause a denial of service (infinite loop). (CVE-2019-3819).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10126)

Amit Klein and Benny Pinkas discovered that the Linux kernel did not sufficiently randomize IP ID values generated for connectionless networking protocols. A remote attacker could use this to track particular Linux devices. (CVE-2019-10638)

It was discovered that a NULL pointer dereference vulnerability existed in the Near-field communication (NFC) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-12984)

Jann Horn discovered a use-after-free vulnerability in the Linux kernel when accessing LDT entries in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-13233)

Jann Horn discovered that the ptrace implementation in the Linux kernel did not properly record credentials in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2019-13272)

It was discovered that the floppy driver in the Linux kernel did not properly validate meta data, leading to a buffer overread. A local attacker could use this to cause a denial of service (system crash).
(CVE-2019-14283)

It was discovered that the floppy driver in the Linux kernel did not properly validate ioctl() calls, leading to a division-by-zero. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-14284)

It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly validate the BSS descriptor. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-3846)

Jason Wang discovered that an infinite loop vulnerability existed in the virtio net driver in the Linux kernel. A local attacker in a guest VM could possibly use this to cause a denial of service in the host system. (CVE-2019-3900).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053)

Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13093)

Wen Xu discovered that the f2fs file system implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious f2fs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13097, CVE-2018-13099, CVE-2018-13100, CVE-2018-14614, CVE-2018-14616, CVE-2018-13096, CVE-2018-13098, CVE-2018-14615)

Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation in the Linux kernel did not properly validate metadata.
An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service (system crash).
(CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14613, CVE-2018-14609)

Wen Xu discovered that the HFS+ filesystem implementation in the Linux kernel did not properly handle malformed catalog data in some situations. An attacker could use this to construct a malicious HFS+ image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14617)

Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem of the Linux kernel did not properly initialize new files in some situations. A local attacker could use this to expose sensitive information. (CVE-2018-16862)

Hui Peng and Mathias Payer discovered that the USB subsystem in the Linux kernel did not properly handle size checks when handling an extra USB descriptor. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-20169)

It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel when certain failure conditions occurred. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2018-20856)

Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux kernel did not properly validate elliptic curve parameters during Diffie-Hellman key exchange in some situations. An attacker could use this to expose sensitive information. (CVE-2018-5383)

It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10126)

Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-1125)

It was discovered that the PowerPC dlpar implementation in the Linux kernel did not properly check for allocation errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-12614)

It was discovered that a NULL pointer dereference vulnerabilty existed in the Near-field communication (NFC) implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2019-12818)

It was discovered that the MDIO bus devices subsystem in the Linux kernel improperly dropped a device reference in an error condition, leading to a use-after-free. An attacker could use this to cause a denial of service (system crash). (CVE-2019-12819)

It was discovered that a NULL pointer dereference vulnerability existed in the Near-field communication (NFC) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-12984)

Jann Horn discovered a use-after-free vulnerability in the Linux kernel when accessing LDT entries in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-13233)

Jann Horn discovered that the ptrace implementation in the Linux kernel did not properly record credentials in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2019-13272)

It was discovered that the Empia EM28xx DVB USB device driver implementation in the Linux kernel contained a use-after-free vulnerability when disconnecting the device. An attacker could use this to cause a denial of service (system crash). (CVE-2019-2024)

It was discovered that the USB video device class implementation in the Linux kernel did not properly validate control bits, resulting in an out of bounds buffer read. A local attacker could use this to possibly expose sensitive information (kernel memory). (CVE-2019-2101)

It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly validate the BSS descriptor. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-3846)

It was discovered that the Appletalk IP encapsulation driver in the Linux kernel did not properly prevent kernel addresses from being copied to user space. A local attacker with the CAP_NET_ADMIN capability could use this to expose sensitive information.
(CVE-2018-20511).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10126)

Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-1125)

It was discovered that the PowerPC dlpar implementation in the Linux kernel did not properly check for allocation errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-12614)

It was discovered that a NULL pointer dereference vulnerability existed in the Near-field communication (NFC) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-12984)

Jann Horn discovered a use-after-free vulnerability in the Linux kernel when accessing LDT entries in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-13233)

Jann Horn discovered that the ptrace implementation in the Linux kernel did not properly record credentials in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2019-13272)

It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly validate the BSS descriptor. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-3846).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu 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-2018-20836     chenxiang reported a race condition in libsas, the     kernel subsystem supporting Serial Attached SCSI (SAS)     devices, which could lead to a use-after-free. It is not     clear how this might be exploited.

  - CVE-2019-1125     It was discovered that most x86 processors could     speculatively skip a conditional SWAPGS instruction used     when entering the kernel from user mode, and/or could     speculatively execute it when it should be skipped. This     is a subtype of Spectre variant 1, which could allow     local users to obtain sensitive information from the     kernel or other processes. It has been mitigated by     using memory barriers to limit speculative execution.
    Systems using an i386 kernel are not affected as the     kernel does not use SWAPGS.

  - CVE-2019-1999     A race condition was discovered in the Android binder     driver, which could lead to a use-after-free. If this     driver is loaded, a local user might be able to use this     for denial-of-service (memory corruption) or for     privilege escalation.

  - CVE-2019-10207     The syzkaller tool found a potential null dereference in     various drivers for UART-attached Bluetooth adapters. A     local user with access to a pty device or other suitable     tty device could use this for denial-of-service     (BUG/oops).

  - CVE-2019-10638     Amit Klein and Benny Pinkas discovered that the     generation of IP packet IDs used a weak hash function,     'jhash'. This could enable tracking individual computers     as they communicate with different remote servers and     from different networks. The 'siphash' function is now     used instead.

  - CVE-2019-12817     It was discovered that on the PowerPC (ppc64el)     architecture, the hash page table (HPT) code did not     correctly handle fork() in a process with memory mapped     at addresses above 512 TiB. This could lead to a     use-after-free in the kernel, or unintended sharing of     memory between user processes. A local user could use     this for privilege escalation. Systems using the radix     MMU, or a custom kernel with a 4 KiB page size, are not     affected.

  - CVE-2019-12984     It was discovered that the NFC protocol implementation     did not properly validate a netlink control message,     potentially leading to a NULL pointer dereference. A     local user on a system with an NFC interface could use     this for denial-of-service (BUG/oops).

  - CVE-2019-13233     Jann Horn discovered a race condition on the x86     architecture, in use of the LDT. This could lead to a     use-after-free. A local user could possibly use this for     denial-of-service.

  - CVE-2019-13631     It was discovered that the gtco driver for USB input     tablets could overrun a stack buffer with constant data     while parsing the device's descriptor. A physically     present user with a specially constructed USB device     could use this to cause a denial-of-service (BUG/oops),     or possibly for privilege escalation.

  - CVE-2019-13648     Praveen Pandey reported that on PowerPC (ppc64el)     systems without Transactional Memory (TM), the kernel     would still attempt to restore TM state passed to the     sigreturn() system call. A local user could use this for     denial-of-service (oops).

  - CVE-2019-14283     The syzkaller tool found a missing bounds check in the     floppy disk driver. A local user with access to a floppy     disk device, with a disk present, could use this to read     kernel memory beyond the I/O buffer, possibly obtaining     sensitive information.

  - CVE-2019-14284     The syzkaller tool found a potential division-by-zero in     the floppy disk driver. A local user with access to a     floppy disk device could use this for denial-of-service     (oops).

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2019-10638: In the Linux kernel, a device could be tracked by an attacker using the IP ID values the kernel produces for connection-less protocols (e.g., UDP and ICMP). When such traffic was sent to multiple destination IP addresses, it was possible to obtain hash collisions (of indices to the counter array) and thereby obtain the hashing key (via enumeration). An attack may have been conducted by hosting a crafted web page that uses WebRTC or gQUIC to force UDP traffic to attacker-controlled IP addresses (bnc#1140575 1140577).

CVE-2019-10639: The Linux kernel allowed Information Exposure (partial kernel address disclosure), leading to a KASLR bypass. Specifically, it was possible to extract the KASLR kernel image offset using the IP ID values the kernel produces for connection-less protocols (e.g., UDP and ICMP). When such traffic was sent to multiple destination IP addresses, it was possible to obtain hash collisions (of indices to the counter array) and thereby obtain the hashing key (via enumeration). This key contains enough bits from a kernel address (of a static variable) so when the key was extracted (via enumeration), the offset of the kernel image was exposed. This attack could be carried out remotely, by the attacker forcing the target device to send UDP or ICMP (or certain other) traffic to attacker-controlled IP addresses. Forcing a server to send UDP traffic is trivial if the server is a DNS server. ICMP traffic is trivial if the server answers ICMP Echo requests (ping). For client targets, if the target visits the attacker's web page, then WebRTC or gQUIC can be used to force UDP traffic to attacker-controlled IP addresses. NOTE: this attack against KASLR became viable because IP ID generation was changed to have a dependency on an address associated with a network namespace (bnc#1140577).

CVE-2019-13233: In arch/x86/lib/insn-eval.c in the Linux kernel, there was a use-after-free for access to an LDT entry because of a race condition between modify_ldt() and a #BR exception for an MPX bounds violation (bnc#1140454).

CVE-2018-20836: An issue was discovered in the Linux kernel There was a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free (bnc#1134395).

CVE-2019-10126: A flaw was found in the Linux kernel. A heap based buffer overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c might have lead to memory corruption and possibly other consequences (bnc#1136935).

CVE-2019-11599: The coredump implementation in the Linux kernel did not use locking or other mechanisms to prevent vma layout or vma flags changes while it ran, which allowed local users to obtain sensitive information, cause a denial of service, or possibly have unspecified other impact by triggering a race condition with mmget_not_zero or get_task_mm calls. This is related to fs/userfaultfd.c, mm/mmap.c, fs/proc/task_mmu.c, and drivers/infiniband/core/uverbs_main.c (bnc#1131645 1133738).

The update package also includes non-security fixes. See advisory for details.

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.

ID	Name	Product	Family	Severity
130547	RHEL 8 : kernel (RHSA-2019:3517)	Nessus	Red Hat Local Security Checks	high
130526	RHEL 8 : kernel-rt (RHSA-2019:3309)	Nessus	Red Hat Local Security Checks	high
129284	SUSE SLED15 / SLES15 Security Update : kernel-source-rt (SUSE-SU-2019:2430-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) (SACK Panic) (SACK Slowness) (Spectre)	Nessus	SuSE Local Security Checks	critical
128478	Ubuntu 16.04 LTS / 18.04 LTS : linux-aws vulnerabilities (USN-4118-1)	Nessus	Ubuntu Local Security Checks	critical
128477	Ubuntu 19.04 : linux-aws vulnerabilities (USN-4117-1)	Nessus	Ubuntu Local Security Checks	high
127889	Ubuntu 16.04 LTS / 18.04 LTS : linux, linux-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-kvm, (USN-4094-1)	Nessus	Ubuntu Local Security Checks	high
127888	Ubuntu 18.04 LTS / 19.04 : linux, linux-hwe, linux-azure, linux-gcp, linux-kvm, linux-raspi2, (USN-4093-1)	Nessus	Ubuntu Local Security Checks	high
127491	Debian DSA-4495-1 : linux - security update	Nessus	Debian Local Security Checks	high
126897	openSUSE Security Update : the Linux Kernel (openSUSE-2019-1757)	Nessus	SuSE Local Security Checks	high
126743	SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2019:1854-1)	Nessus	SuSE Local Security Checks	high

CVE-2019-13233

Description

References

Details

Risk Information

CVSS v2.0

CVSS v3.0

Vulnerable Software

Configuration 1

Tenable Plugins