rhsa-2017_2585
Vulnerability from csaf_redhat
Published
2017-09-05 11:19
Modified
2024-11-05 20:10
Summary
Red Hat Security Advisory: kernel-rt security and bug fix update
Notes
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
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 race condition was found in the Linux kernel, present since v3.14-rc1 through v4.12. The race happens between threads of inotify_handle_event() and vfs_rename() while running the rename operation against the same file. As a result of the race the next slab data or the slab's free list pointer can be corrupted with attacker-controlled data, which may lead to the privilege escalation. (CVE-2017-7533, Important)
Red Hat would like to thank Leilei Lin (Alibaba Group), Fan Wu (The University of Hong Kong), and Shixiong Zhao (The University of Hong Kong) for reporting this issue.
Bug Fix(es):
* The kernel-rt packages have been upgraded to the 3.10.0-693.2.1 source tree, which provides a number of bug fixes over the previous version. (BZ#1473393) (BZ#1473393)
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.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update for kernel-rt is now available for Red Hat Enterprise Linux 7.\n\nRed 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.", "title": "Topic" }, { "category": "general", "text": "The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.\n\nSecurity Fix(es):\n\n* A race condition was found in the Linux kernel, present since v3.14-rc1 through v4.12. The race happens between threads of inotify_handle_event() and vfs_rename() while running the rename operation against the same file. As a result of the race the next slab data or the slab\u0027s free list pointer can be corrupted with attacker-controlled data, which may lead to the privilege escalation. (CVE-2017-7533, Important)\n\nRed Hat would like to thank Leilei Lin (Alibaba Group), Fan Wu (The University of Hong Kong), and Shixiong Zhao (The University of Hong Kong) for reporting this issue.\n\nBug Fix(es):\n\n* The kernel-rt packages have been upgraded to the 3.10.0-693.2.1 source tree, which provides a number of bug fixes over the previous version. (BZ#1473393) (BZ#1473393)", "title": "Details" }, { "category": "legal_disclaimer", "text": "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.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2017:2585", "url": "https://access.redhat.com/errata/RHSA-2017:2585" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "1468283", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1468283" }, { "category": "external", "summary": "1473393", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1473393" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2017/rhsa-2017_2585.json" } ], "title": "Red Hat Security Advisory: kernel-rt security and bug fix update", "tracking": { "current_release_date": "2024-11-05T20:10:29+00:00", "generator": { "date": "2024-11-05T20:10:29+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.1.1" } }, "id": "RHSA-2017:2585", "initial_release_date": "2017-09-05T11:19:20+00:00", "revision_history": [ { "date": "2017-09-05T11:19:20+00:00", "number": "1", "summary": "Initial version" }, { "date": "2017-09-05T11:19:20+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-05T20:10:29+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat 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"full_product_name": { "name": "kernel-rt-trace-kvm-debuginfo-0:3.10.0-693.2.1.rt56.620.el7.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)", "product_id": "7Server-RT-7.4.Z:kernel-rt-trace-kvm-debuginfo-0:3.10.0-693.2.1.rt56.620.el7.x86_64" }, "product_reference": "kernel-rt-trace-kvm-debuginfo-0:3.10.0-693.2.1.rt56.620.el7.x86_64", "relates_to_product_reference": "7Server-RT-7.4.Z" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "Andrew Aday", "Shankara Pailoor" ], "organization": "Columbia University" }, { "names": [ "Fan Wu", "Shixiong Zhao" ], "organization": "The University of Hong Kong" }, { "names": [ "Leilei Lin" ], "organization": "Alibaba Group" } ], "cve": "CVE-2017-7533", "cwe": { "id": "CWE-642", "name": "External Control of Critical State Data" }, "discovery_date": "2017-07-05T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1468283" } ], "notes": [ { "category": "description", "text": "A race condition was found in the Linux kernel, present since v3.14-rc1 through v4.12. The race happens between threads of inotify_handle_event() and vfs_rename() while running the rename operation against the same file. As a result of the race the next slab data or the slab\u0027s free list pointer can be corrupted with attacker-controlled data, which may lead to the privilege escalation.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: a race between inotify_handle_event() and sys_rename()", "title": "Vulnerability summary" }, { "category": "other", "text": "This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7.0 and 7.1 as the code with the flaw is not present in the products listed.\n\nThis issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 7.2 and newer and Red Hat Enterprise MRG 2. Future kernel updates for these products may address this issue.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "7Server-NFV-7.4.Z:kernel-rt-0:3.10.0-693.2.1.rt56.620.el7.src", "7Server-NFV-7.4.Z:kernel-rt-0:3.10.0-693.2.1.rt56.620.el7.x86_64", "7Server-NFV-7.4.Z:kernel-rt-debug-0:3.10.0-693.2.1.rt56.620.el7.x86_64", "7Server-NFV-7.4.Z:kernel-rt-debug-debuginfo-0:3.10.0-693.2.1.rt56.620.el7.x86_64", "7Server-NFV-7.4.Z:kernel-rt-debug-devel-0:3.10.0-693.2.1.rt56.620.el7.x86_64", "7Server-NFV-7.4.Z:kernel-rt-debug-kvm-0:3.10.0-693.2.1.rt56.620.el7.x86_64", "7Server-NFV-7.4.Z:kernel-rt-debug-kvm-debuginfo-0:3.10.0-693.2.1.rt56.620.el7.x86_64", 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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.