ID

VAR-201806-1505

CVE

CVE-2018-3665

TITLE

Intel Core Information disclosure vulnerability in systems with microprocessors

DESCRIPTION

System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel. Intel Core Systems with microprocessors contain information disclosure vulnerabilities.Information may be obtained. An attacker could exploit this vulnerability to obtain values about other processes stored in a number register. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2019:1190-01 Product: Red Hat Enterprise MRG for RHEL-6 Advisory URL: https://access.redhat.com/errata/RHSA-2019:1190 Issue date: 2019-05-14 CVE Names: CVE-2016-7913 CVE-2016-8633 CVE-2017-11600 CVE-2017-12190 CVE-2017-13215 CVE-2017-16939 CVE-2017-17558 CVE-2018-1068 CVE-2018-3665 CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2018-18559 CVE-2019-11091 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise MRG 2. 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. 2. Relevant releases/architectures: Red Hat MRG Realtime for RHEL 6 Server v.2 - noarch, x86_64 3. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. 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-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: 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): * update the MRG 2.5.z 3.10 kernel-rt sources (BZ#1692711) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1391490 - CVE-2016-8633 kernel: Buffer overflow in firewire driver via crafted incoming packets 1402885 - CVE-2016-7913 kernel: media: use-after-free in [tuner-xc2028] media driver 1474928 - CVE-2017-11600 kernel: Out-of-bounds access via an XFRM_MSG_MIGRATE xfrm Netlink message 1495089 - CVE-2017-12190 kernel: memory leak when merging buffers in SCSI IO vectors 1517220 - CVE-2017-16939 Kernel: ipsec: xfrm: use-after-free leading to potential privilege escalation 1525474 - CVE-2017-17558 kernel: Unallocated memory access by malicious USB device via bNumInterfaces overflow 1535173 - CVE-2017-13215 kernel: crypto: privilege escalation in skcipher_recvmsg function 1552048 - CVE-2018-1068 kernel: Out-of-bounds write via userland offsets in ebt_entry struct in netfilter/ebtables.c 1585011 - CVE-2018-3665 Kernel: FPU state information leakage via lazy FPU restore 1641878 - CVE-2018-18559 kernel: Use-after-free due to race condition in AF_PACKET implementation 1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS) 1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS) 1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS) 1692711 - update the MRG 2.5.z 3.10 kernel-rt sources 1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM) 6. Package List: Red Hat MRG Realtime for RHEL 6 Server v.2: Source: kernel-rt-3.10.0-693.47.2.rt56.641.el6rt.src.rpm noarch: kernel-rt-doc-3.10.0-693.47.2.rt56.641.el6rt.noarch.rpm kernel-rt-firmware-3.10.0-693.47.2.rt56.641.el6rt.noarch.rpm x86_64: kernel-rt-3.10.0-693.47.2.rt56.641.el6rt.x86_64.rpm kernel-rt-debug-3.10.0-693.47.2.rt56.641.el6rt.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-693.47.2.rt56.641.el6rt.x86_64.rpm kernel-rt-debug-devel-3.10.0-693.47.2.rt56.641.el6rt.x86_64.rpm kernel-rt-debuginfo-3.10.0-693.47.2.rt56.641.el6rt.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-693.47.2.rt56.641.el6rt.x86_64.rpm kernel-rt-devel-3.10.0-693.47.2.rt56.641.el6rt.x86_64.rpm kernel-rt-trace-3.10.0-693.47.2.rt56.641.el6rt.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-693.47.2.rt56.641.el6rt.x86_64.rpm kernel-rt-trace-devel-3.10.0-693.47.2.rt56.641.el6rt.x86_64.rpm kernel-rt-vanilla-3.10.0-693.47.2.rt56.641.el6rt.x86_64.rpm kernel-rt-vanilla-debuginfo-3.10.0-693.47.2.rt56.641.el6rt.x86_64.rpm kernel-rt-vanilla-devel-3.10.0-693.47.2.rt56.641.el6rt.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2016-7913 https://access.redhat.com/security/cve/CVE-2016-8633 https://access.redhat.com/security/cve/CVE-2017-11600 https://access.redhat.com/security/cve/CVE-2017-12190 https://access.redhat.com/security/cve/CVE-2017-13215 https://access.redhat.com/security/cve/CVE-2017-16939 https://access.redhat.com/security/cve/CVE-2017-17558 https://access.redhat.com/security/cve/CVE-2018-1068 https://access.redhat.com/security/cve/CVE-2018-3665 https://access.redhat.com/security/cve/CVE-2018-12126 https://access.redhat.com/security/cve/CVE-2018-12127 https://access.redhat.com/security/cve/CVE-2018-12130 https://access.redhat.com/security/cve/CVE-2018-18559 https://access.redhat.com/security/cve/CVE-2019-11091 https://access.redhat.com/security/vulnerabilities/mds https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXNsknNzjgjWX9erEAQjpAQ/9HuV7LWnQ41hASz4HSbew0m6Pg5mLLrXz zr8VoS3lTX2DLT34YwnOIuFhb+iJd8ky1qbjP9xBqnX66e2WHDeoTIfCM+bxSkKo gEM6CcheaOar+5HUORbjVnG7MQzcUpNzzGlD/CH37nNkTfNSA5zYFbtW5kOb2ULP v5jekOtNOKn87uEz3WNJD5EHwrP8JNGeVIped2GT/vNfcJsHtTUElP+J15zbzlE8 4XiNu2yKEJowKrzlk5VlJH9cfwyoy++hrknVPuSnc1dXqxIjeyGGGgmlDqeyLKqg BpDLP/MsFBKcOm+xwGx52a1f7TRZ1uznmSThI5RyqJS0Gg1805Z/aFlfhcqBSJn4 osk1Q/WbdRSaK4wW229Pd66BPF7p9C81k9Q0/AUqQpmoxj7kdvHQ3jWhOGfuoDOn pXXfv2VALdE1Pcc7CmqR+g0aEOI0DJ2by4zRs10yIKBHgCRLuksZIMfCAexrQcmu XiB2GmezJFw9ViF6/RFxScbNpiLtPSyocbswXSaCPeGq7MFzY2aVSRBaP9xfuXrJ 61/6202eRs8ey+BxYOTbYRikeTX7ZaNvqxZFlqaiUpEew5GuIZZSeszK+fRudNxd uRfBFjmTHYOzD4s+aLIh9t2NJkDr+SIUKea9Wpg4B7QJG8AyW7aiQd+MvfNZqCB3 8rHiMppn5pQ= =EOJK -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . ========================================================================== Kernel Live Patch Security Notice 0040-1 July 03, 2018 linux vulnerability ========================================================================== A security issue affects these releases of Ubuntu: | Series | Base kernel | Arch | flavors | |------------------+--------------+----------+------------------| | Ubuntu 14.04 LTS | 4.4.0 | amd64 | generic | | Ubuntu 14.04 LTS | 4.4.0 | amd64 | lowlatency | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | generic | | Ubuntu 16.04 LTS | 4.4.0 | amd64 | lowlatency | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | generic | | Ubuntu 18.04 LTS | 4.15.0 | amd64 | lowlatency | Summary: Several security issues were fixed in the kernel. Software Description: - linux: Linux kernel Details: Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 file system that caused a denial of service (system crash) when mounted. (CVE-2018-1093) Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 file system that caused a denial of service (system crash) when mounted. (CVE-2018-1092) It was discovered that an information leak vulnerability existed in the floppy driver in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). A local attacker could use this to expose sensitive information. (CVE-2018-3665) Update instructions: The problem can be corrected by updating your livepatches to the following versions: | Kernel | Version | flavors | |--------------------------+----------+--------------------------| | 4.4.0-124.148 | 40.6 | lowlatency, generic | | 4.4.0-124.148~14.04.1 | 40.6 | generic, lowlatency | | 4.4.0-127.153 | 40.6 | lowlatency, generic | | 4.4.0-127.153~14.04.1 | 40.6 | lowlatency, generic | | 4.4.0-128.154 | 40.6 | generic, lowlatency | | 4.4.0-128.154~14.04.1 | 40.6 | generic, lowlatency | | 4.15.0-20.21 | 40.7 | generic, lowlatency | | 4.15.0-22.24 | 40.7 | lowlatency, generic | | 4.15.0-23.25 | 40.7 | lowlatency, generic | References: CVE-2018-1093, CVE-2018-1092, CVE-2018-7755, CVE-2018-3665 -- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce . 7) - noarch, x86_64 3. Security Fix(es): * 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, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank Julian Stecklina (Amazon.de), Thomas Prescher (cyberus-technology.de), and Zdenek Sojka (sysgo.com) for reporting this issue. Bugs fixed (https://bugzilla.redhat.com/): 1585011 - CVE-2018-3665 Kernel: FPU state information leakage via lazy FPU restore 6. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-4232-1 security@debian.org https://www.debian.org/security/ Moritz Muehlenhoff June 20, 2018 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : xen CVE ID : CVE-2018-3665 This update provides mitigations for the "lazy FPU" vulnerability affecting a range of Intel CPUs, which could result in leaking CPU register states belonging to another vCPU previously scheduled on the same CPU. For additional information please refer to https://xenbits.xen.org/xsa/advisory-267.html For the stable distribution (stretch), this problem has been fixed in version 4.8.3+xsa267+shim4.10.1+xsa267-1+deb9u8. We recommend that you upgrade your xen packages. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2018-10-30-14 Additional information for APPLE-SA-2018-7-9-4 macOS High Sierra 10.13.6, Security Update 2018-004 Sierra, Security Update 2018-004 El Capitan macOS High Sierra 10.13.6, Security Update 2018-004 Sierra, and Security Update 2018-004 El Capitan address the following: AMD Available for: macOS High Sierra 10.13.5 Impact: A malicious application may be able to determine kernel memory layout Description: An information disclosure issue was addressed by removing the vulnerable code. CVE-2018-4289: shrek_wzw of Qihoo 360 Nirvan Team APFS Available for: macOS High Sierra 10.13.5 Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2018-4268: Mac working with Trend Micro's Zero Day Initiative ATS Available for: macOS High Sierra 10.13.5 Impact: A malicious application may be able to gain root privileges Description: A type confusion issue was addressed with improved memory handling. CVE-2018-4285: Mohamed Ghannam (@_simo36) Bluetooth Available for: MacBook Pro (15-inch, 2018), and MacBook Pro (13-inch, 2018, Four Thunderbolt 3 Ports) Other Mac models were addressed with macOS High Sierra 10.13.5. Impact: An attacker in a privileged network position may be able to intercept Bluetooth traffic Description: An input validation issue existed in Bluetooth. This issue was addressed with improved input validation. CVE-2018-5383: Lior Neumann and Eli Biham CFNetwork Available for: macOS High Sierra 10.13.5 Impact: Cookies may unexpectedly persist in Safari Description: A cookie management issue was addressed with improved checks. CVE-2018-4293: an anonymous researcher CoreCrypto Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, macOS High Sierra 10.13.5 Impact: A malicious application may be able to break out of its sandbox Description: A memory corruption issue was addressed with improved input validation. CVE-2018-4269: Abraham Masri (@cheesecakeufo) CUPS Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, macOS High Sierra 10.13.5 Impact: An attacker in a privileged position may be able to perform a denial of service attack Description: A null pointer dereference was addressed with improved validation. CVE-2018-4276: Jakub Jirasek of Secunia Research at Flexera Entry added October 30, 2018 DesktopServices Available for: macOS Sierra 10.12.6 Impact: A local user may be able to view sensitive user information Description: A permissions issue existed in which execute permission was incorrectly granted. This issue was addressed with improved permission validation. CVE-2018-4178: Arjen Hendrikse IOGraphics Available for: macOS High Sierra 10.13.5 Impact: A local user may be able to read kernel memory Description: An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. An information disclosure issue was addressed with FP/SIMD register state sanitization. CVE-2018-3665: Julian Stecklina of Amazon Germany, Thomas Prescher of Cyberus Technology GmbH (cyberus-technology.de), Zdenek Sojka of SYSGO AG (sysgo.com), and Colin Percival Kernel Available for: macOS High Sierra 10.13.5 Impact: Mounting a maliciously crafted NFS network share may lead to arbitrary code execution with system privileges Description: Multiple memory corruption issues were addressed with improved memory handling. CVE-2018-4259: Kevin Backhouse of Semmle and LGTM.com CVE-2018-4286: Kevin Backhouse of Semmle and LGTM.com CVE-2018-4287: Kevin Backhouse of Semmle and LGTM.com CVE-2018-4288: Kevin Backhouse of Semmle and LGTM.com CVE-2018-4291: Kevin Backhouse of Semmle and LGTM.com Entry added October 30, 2018 libxpc Available for: OS X El Capitan 10.11.6, macOS Sierra 10.12.6, macOS High Sierra 10.13.5 Impact: An application may be able to gain elevated privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2018-4280: Brandon Azad libxpc Available for: macOS High Sierra 10.13.5 Impact: A malicious application may be able to read restricted memory Description: An out-of-bounds read was addressed with improved input validation. CVE-2018-4248: Brandon Azad LinkPresentation Available for: macOS High Sierra 10.13.5 Impact: Visiting a malicious website may lead to address bar spoofing Description: A spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation. CVE-2018-4277: xisigr of Tencent's Xuanwu Lab (tencent.com) Perl Available for: macOS High Sierra 10.13.5 Impact: Multiple buffer overflow issues existed in Perl Description: Multiple issues in Perl were addressed with improved memory handling. CVE-2018-6797: Brian Carpenter CVE-2018-6913: GwanYeong Kim Entry added October 30, 2018 Ruby Available for: macOS High Sierra 10.13.5 Impact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution Description: Multiple issues in Ruby were addressed in this update. CVE-2017-898 CVE-2017-10784 CVE-2017-14033 CVE-2017-14064 CVE-2017-17405 CVE-2017-17742 CVE-2018-6914 CVE-2018-8777 CVE-2018-8778 CVE-2018-8779 CVE-2018-8780 Entry added October 30, 2018 Additional recognition App Store We would like to acknowledge Jesse Endahl & Stevie Hryciw of Fleetsmith and and Max BA(c)langer of Dropbox for their assistance. Help Viewer We would like to acknowledge Wojciech ReguAa (@_r3ggi) of SecuRing for their assistance. Kernel We would like to acknowledge juwei lin (@panicaII) of Trend Micro working with Trend Micro's Zero Day Initiative for their assistance. Security We would like to acknowledge Brad Dahlsten of Iowa State University for their assistance. Installation note: macOS High Sierra 10.13.6, Security Update 2018-004 Sierra, and Security Update 2018-004 El Capitan may be obtained from the Mac App Store or Apple's Software Downloads web site: https://support.apple.com/downloads/ Information will also be posted to the Apple Security Updates web site: https://support.apple.com/kb/HT201222 This message is signed with Apple's Product Security PGP key, and details are available at: https://www.apple.com/support/security/pgp/ -----BEGIN PGP SIGNATURE----- iQJdBAEBCABHFiEEDNXJVNCJJEAVmJdZeC9tht7TK3EFAlvYkgUpHHByb2R1Y3Qt c2VjdXJpdHktbm9yZXBseUBsaXN0cy5hcHBsZS5jb20ACgkQeC9tht7TK3EgwhAA rut4Qepkh88tcd23FV/Fz6uEdqa2MDPRPhVs6rM5iM7912vhtVZHz1sDUpSwNFe+ Hfdx0qsZaxY1sKjqMejq5mpanjFWhCCWb7MxifGm1HTJRMibuTAW7zVwD51jsG7z GpQtZ8ASaW9NErn+3IPB0O//CCvAKR/qyqn+KyEhYw+xtz2j+dzneB6lpwFkiqG2 0Iz5DQ2Hwms/88byzoXLWljAApvgSeant1YAiShq9bvQ3iWSkLSoo1dEa9jhhGJV jKyc+XloM7AfAHl6sjR6t3Cgdmfpy7s4osx17tqa4B5CYUloBGcZ0SZrL6iJDDvV 5OTsXHCQ9NLwZrdAwIgfcVcs01Y8hVkpjhCmm2InGwREJUtpYefCQ/kIlDa1YOym 3ua/SEO5+UYSVspG45vTdRB6SNSzeWzcQvJohrXavSllttcGyNx9RxMSr9CGxNSE Vjmo30J8D2Oow2hMtK1PWXxI+t4UadO33rL1H2u8ivl9J1BI9sEL0linFTUpEnIS iIRYUdrr+ZduSsC21NBLhMOak61GWYQRSN+p3nbL7fDqZCFdBSwvye4q2MmZG1Op aDePXQWSPgzlXzfi2C6KiR+lSyZlgCwtwhPGlzDFH5MGxr5Tleov98GB4uml91lj PVSMCsvYvRarIh6enmy+SR/6X7gVgrpx4m/fdraBwTw= =e0YF -----END PGP SIGNATURE-----

IOT TAXONOMY

AFFECTED PRODUCTS