RHSA-2019_1170

Vulnerability from csaf_redhat - Published: 2019-05-14 19:16 - Updated: 2024-11-15 03:08
Summary
Red Hat Security Advisory: kernel security and bug fix update
Severity
Important
Notes
Topic: An update for kernel is now available for Red Hat Enterprise Linux 7.4 Extended Update Support. 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.
Details: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130) * Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126) * Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127) * Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091) * kernel: Buffer overflow in firewire driver via crafted incoming packets (CVE-2016-8633) * kernel: crypto: privilege escalation in skcipher_recvmsg function (CVE-2017-13215) * Kernel: ipsec: xfrm: use-after-free leading to potential privilege escalation (CVE-2017-16939) * kernel: Out-of-bounds write via userland offsets in ebt_entry struct in netfilter/ebtables.c (CVE-2018-1068) * kernel: Use-after-free due to race condition in AF_PACKET implementation (CVE-2018-18559) * kernel: media: use-after-free in [tuner-xc2028] media driver (CVE-2016-7913) * kernel: Out-of-bounds access via an XFRM_MSG_MIGRATE xfrm Netlink message (CVE-2017-11600) * kernel: memory leak when merging buffers in SCSI IO vectors (CVE-2017-12190) * kernel: Unallocated memory access by malicious USB device via bNumInterfaces overflow (CVE-2017-17558) * Kernel: KVM: DoS via write flood to I/O port 0x80 (CVE-2017-1000407) * Kernel: FPU state information leakage via lazy FPU restore (CVE-2018-3665) 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. Bug Fix(es): * rwsem in inconsistent state leading system to hung (BZ#1690321) * efi_bgrt_init fails to ioremap error during boot (BZ#1692284)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

The xc2028_set_config function in drivers/media/tuners/tuner-xc2028.c in the Linux kernel before 4.6 allows local users to gain privileges or cause a denial of service (use-after-free) via vectors involving omission of the firmware name from a certain data structure. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.

CWE-416 - Use After Free
Affected products
Product Identifier Version Remediation
Unresolved product id: 7ComputeNode-7.4.EUS:kernel-0:3.10.0-693.47.2.el7.ppc64
Vendor Fix fix
Unresolved product id: 7ComputeNode-7.4.EUS:kernel-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-0:3.10.0-693.47.2.el7.src
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-abi-whitelists-0:3.10.0-693.47.2.el7.noarch
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-bootwrapper-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-bootwrapper-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debug-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debug-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debug-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debug-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debug-debuginfo-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debug-debuginfo-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debug-debuginfo-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debug-debuginfo-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debug-devel-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debug-devel-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debug-devel-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debug-devel-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debuginfo-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debuginfo-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debuginfo-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debuginfo-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debuginfo-common-ppc64-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debuginfo-common-ppc64le-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debuginfo-common-s390x-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-debuginfo-common-x86_64-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-devel-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-devel-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-devel-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-devel-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-doc-0:3.10.0-693.47.2.el7.noarch
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-headers-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-headers-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-headers-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-headers-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-kdump-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-kdump-debuginfo-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-kdump-devel-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-tools-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-tools-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-tools-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-tools-debuginfo-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-tools-debuginfo-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-tools-debuginfo-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-tools-libs-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-tools-libs-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-tools-libs-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-tools-libs-devel-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-tools-libs-devel-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:kernel-tools-libs-devel-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:perf-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:perf-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:perf-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:perf-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:perf-debuginfo-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:perf-debuginfo-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:perf-debuginfo-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:perf-debuginfo-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:python-perf-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:python-perf-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:python-perf-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:python-perf-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-7.4.EUS:python-perf-debuginfo-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-7.4.EUS:python-perf-debuginfo-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-7.4.EUS:python-perf-debuginfo-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-7.4.EUS:python-perf-debuginfo-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-0:3.10.0-693.47.2.el7.src
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-abi-whitelists-0:3.10.0-693.47.2.el7.noarch
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-bootwrapper-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-bootwrapper-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debug-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debug-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debug-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debug-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debug-debuginfo-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debug-debuginfo-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debug-debuginfo-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debug-debuginfo-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debug-devel-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debug-devel-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debug-devel-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debug-devel-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debuginfo-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debuginfo-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debuginfo-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debuginfo-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debuginfo-common-ppc64-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debuginfo-common-ppc64le-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debuginfo-common-s390x-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-debuginfo-common-x86_64-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-devel-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-devel-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-devel-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-devel-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-doc-0:3.10.0-693.47.2.el7.noarch
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-headers-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-headers-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-headers-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-headers-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-kdump-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-kdump-debuginfo-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-kdump-devel-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-tools-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-tools-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-tools-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-tools-debuginfo-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-tools-debuginfo-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-tools-debuginfo-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-tools-libs-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-tools-libs-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-tools-libs-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-tools-libs-devel-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:kernel-tools-libs-devel-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:perf-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:perf-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:perf-0:3.10.0-693.47.2.el7.s390x
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:perf-0:3.10.0-693.47.2.el7.x86_64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:perf-debuginfo-0:3.10.0-693.47.2.el7.ppc64
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:perf-debuginfo-0:3.10.0-693.47.2.el7.ppc64le
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Unresolved product id: 7ComputeNode-optional-7.4.EUS:perf-debuginfo-0:3.10.0-693.47.2.el7.s390x
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Threats
Impact Moderate

A buffer overflow vulnerability due to a lack of input filtering of incoming fragmented datagrams was found in the IP-over-1394 driver [firewire-net] in a fragment handling code in the Linux kernel. The vulnerability exists since firewire supported IPv4, i.e. since version 2.6.31 (year 2009) till version v4.9-rc4. A maliciously formed fragment with a respectively large datagram offset would cause a memcpy() past the datagram buffer, which would cause a system panic or possible arbitrary code execution. The flaw requires [firewire-net] module to be loaded and is remotely exploitable from connected firewire devices, but not over a local network.

CWE-787 - Out-of-bounds Write
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Important

The xfrm_migrate() function in the net/xfrm/xfrm_policy.c file in the Linux kernel built with CONFIG_XFRM_MIGRATE does not verify if the dir parameter is less than XFRM_POLICY_MAX. This allows a local attacker to cause a denial of service (out-of-bounds access) or possibly have unspecified other impact by sending a XFRM_MSG_MIGRATE netlink message. This flaw is present in the Linux kernel since an introduction of XFRM_MSG_MIGRATE in 2.6.21-rc1, up to 4.13-rc3.

CWE-125 - Out-of-bounds Read
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Moderate

It was found that in the Linux kernel through v4.14-rc5, bio_map_user_iov() and bio_unmap_user() in 'block/bio.c' do unbalanced pages refcounting if IO vector has small consecutive buffers belonging to the same page. bio_add_pc_page() merges them into one, but the page reference is never dropped, causing a memory leak and possible system lockup due to out-of-memory condition.

CWE-400 - Uncontrolled Resource Consumption
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Moderate

A flaw was found in the Linux kernel's skcipher component, which affects the skcipher_recvmsg function. Attackers using a specific input can lead to a privilege escalation.

CWE-287 - Improper Authentication
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Important

The Linux kernel is vulerable to a use-after-free flaw when Transformation User configuration interface(CONFIG_XFRM_USER) compile-time configuration were enabled. This vulnerability occurs while closing a xfrm netlink socket in xfrm_dump_policy_done. A user/process could abuse this flaw to potentially escalate their privileges on a system.

CWE-416 - Use After Free
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Important

The usb_destroy_configuration() function, in 'drivers/usb/core/config.c' in the USB core subsystem, in the Linux kernel through 4.14.5 does not consider the maximum number of configurations and interfaces before attempting to release resources. This allows local users to cause a denial of service, due to out-of-bounds write access, or possibly have unspecified other impact via a crafted USB device. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Moderate

Linux kernel Virtualization Module (CONFIG_KVM) for the Intel processor family (CONFIG_KVM_INTEL) is vulnerable to a DoS issue. It could occur if a guest was to flood the I/O port 0x80 with write requests. A guest user could use this flaw to crash the host kernel resulting in DoS.

CWE-248 - Uncaught Exception
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Moderate

A flaw was found in the Linux kernel's implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory.

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Important

A Floating Point Unit (FPU) state information leakage flaw was found in the way the Linux kernel saved and restored the FPU state during task switch. Linux kernels that follow the "Lazy FPU Restore" scheme are vulnerable to the FPU state information leakage issue. An unprivileged local attacker could use this flaw to read FPU state bits by conducting targeted cache side-channel attacks, similar to the Meltdown vulnerability disclosed earlier this year.

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Moderate

Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer.

CWE-385 - Covert Timing Channel
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Moderate

Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel.

CWE-385 - Covert Timing Channel
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Moderate

A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.

CWE-226 - Sensitive Information in Resource Not Removed Before Reuse
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Important

A use-after-free flaw can occur in the Linux kernel due to a race condition between packet_do_bind() and packet_notifier() functions called for an AF_PACKET socket. An unprivileged, local user could use this flaw to induce kernel memory corruption on the system, leading to an unresponsive system or to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.

CWE-416 - Use After Free
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Important

Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.

CWE-385 - Covert Timing Channel
Affected products
Fixed 272 products, the same list as for CVE-2016-7913
Threats
Impact Moderate
References
URL Category
https://access.redhat.com/errata/RHSA-2019:1170 self
https://access.redhat.com/security/updates/classi… external
https://access.redhat.com/security/vulnerabilities/mds external
https://bugzilla.redhat.com/show_bug.cgi?id=1391490 external
https://bugzilla.redhat.com/show_bug.cgi?id=1402885 external
https://bugzilla.redhat.com/show_bug.cgi?id=1474928 external
https://bugzilla.redhat.com/show_bug.cgi?id=1495089 external
https://bugzilla.redhat.com/show_bug.cgi?id=1517220 external
https://bugzilla.redhat.com/show_bug.cgi?id=1520328 external
https://bugzilla.redhat.com/show_bug.cgi?id=1525474 external
https://bugzilla.redhat.com/show_bug.cgi?id=1535173 external
https://bugzilla.redhat.com/show_bug.cgi?id=1552048 external
https://bugzilla.redhat.com/show_bug.cgi?id=1585011 external
https://bugzilla.redhat.com/show_bug.cgi?id=1641878 external
https://bugzilla.redhat.com/show_bug.cgi?id=1646781 external
https://bugzilla.redhat.com/show_bug.cgi?id=1646784 external
https://bugzilla.redhat.com/show_bug.cgi?id=1667782 external
https://bugzilla.redhat.com/show_bug.cgi?id=1705312 external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2016-7913 self
https://bugzilla.redhat.com/show_bug.cgi?id=1402885 external
https://www.cve.org/CVERecord?id=CVE-2016-7913 external
https://nvd.nist.gov/vuln/detail/CVE-2016-7913 external
https://access.redhat.com/security/cve/CVE-2016-8633 self
https://bugzilla.redhat.com/show_bug.cgi?id=1391490 external
https://www.cve.org/CVERecord?id=CVE-2016-8633 external
https://nvd.nist.gov/vuln/detail/CVE-2016-8633 external
https://access.redhat.com/security/cve/CVE-2017-11600 self
https://bugzilla.redhat.com/show_bug.cgi?id=1474928 external
https://www.cve.org/CVERecord?id=CVE-2017-11600 external
https://nvd.nist.gov/vuln/detail/CVE-2017-11600 external
https://access.redhat.com/security/cve/CVE-2017-12190 self
https://bugzilla.redhat.com/show_bug.cgi?id=1495089 external
https://www.cve.org/CVERecord?id=CVE-2017-12190 external
https://nvd.nist.gov/vuln/detail/CVE-2017-12190 external
https://access.redhat.com/security/cve/CVE-2017-13215 self
https://bugzilla.redhat.com/show_bug.cgi?id=1535173 external
https://www.cve.org/CVERecord?id=CVE-2017-13215 external
https://nvd.nist.gov/vuln/detail/CVE-2017-13215 external
https://access.redhat.com/security/cve/CVE-2017-16939 self
https://bugzilla.redhat.com/show_bug.cgi?id=1517220 external
https://www.cve.org/CVERecord?id=CVE-2017-16939 external
https://nvd.nist.gov/vuln/detail/CVE-2017-16939 external
https://access.redhat.com/security/cve/CVE-2017-17558 self
https://bugzilla.redhat.com/show_bug.cgi?id=1525474 external
https://www.cve.org/CVERecord?id=CVE-2017-17558 external
https://nvd.nist.gov/vuln/detail/CVE-2017-17558 external
https://access.redhat.com/security/cve/CVE-2017-1000407 self
https://bugzilla.redhat.com/show_bug.cgi?id=1520328 external
https://www.cve.org/CVERecord?id=CVE-2017-1000407 external
https://nvd.nist.gov/vuln/detail/CVE-2017-1000407 external
https://access.redhat.com/security/cve/CVE-2018-1068 self
https://bugzilla.redhat.com/show_bug.cgi?id=1552048 external
https://www.cve.org/CVERecord?id=CVE-2018-1068 external
https://nvd.nist.gov/vuln/detail/CVE-2018-1068 external
https://access.redhat.com/security/cve/CVE-2018-3665 self
https://bugzilla.redhat.com/show_bug.cgi?id=1585011 external
https://www.cve.org/CVERecord?id=CVE-2018-3665 external
https://nvd.nist.gov/vuln/detail/CVE-2018-3665 external
http://www.openwall.com/lists/oss-security/2018/06/15/5 external
https://access.redhat.com/solutions/3485131 external
https://www.intel.com/content/www/us/en/security-… external
https://access.redhat.com/security/cve/CVE-2018-12126 self
https://bugzilla.redhat.com/show_bug.cgi?id=1646781 external
https://access.redhat.com/security/vulnerabilities/mds external
https://www.cve.org/CVERecord?id=CVE-2018-12126 external
https://nvd.nist.gov/vuln/detail/CVE-2018-12126 external
https://www.intel.com/content/www/us/en/security-… external
https://access.redhat.com/security/cve/CVE-2018-12127 self
https://bugzilla.redhat.com/show_bug.cgi?id=1667782 external
https://www.cve.org/CVERecord?id=CVE-2018-12127 external
https://nvd.nist.gov/vuln/detail/CVE-2018-12127 external
https://access.redhat.com/security/cve/CVE-2018-12130 self
https://bugzilla.redhat.com/show_bug.cgi?id=1646784 external
https://www.cve.org/CVERecord?id=CVE-2018-12130 external
https://nvd.nist.gov/vuln/detail/CVE-2018-12130 external
https://access.redhat.com/security/cve/CVE-2018-18559 self
https://bugzilla.redhat.com/show_bug.cgi?id=1641878 external
https://www.cve.org/CVERecord?id=CVE-2018-18559 external
https://nvd.nist.gov/vuln/detail/CVE-2018-18559 external
https://blogs.securiteam.com/index.php/archives/3731 external
https://access.redhat.com/security/cve/CVE-2019-11091 self
https://bugzilla.redhat.com/show_bug.cgi?id=1705312 external
https://www.cve.org/CVERecord?id=CVE-2019-11091 external
https://nvd.nist.gov/vuln/detail/CVE-2019-11091 external

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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