rhsa-2016_0224
Vulnerability from csaf_redhat
Published
2016-02-16 14:59
Modified
2024-11-14 17:19
Summary
Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update
Notes
Topic
Updated kernel-rt packages that fix two security issues, several bugs, and
add various enhancements are now available for Red Hat Enterprise MRG 2.5.
Red Hat Product Security has rated this update as having Important security
impact. Common Vulnerability Scoring System (CVSS) base scores, which give
detailed severity ratings, are available for each vulnerability from the
CVE links in the References section.
Details
The kernel-rt packages contain the Linux kernel, the core of any Linux
operating system.
* It was found that the Linux kernel's keys subsystem did not correctly
garbage collect uninstantiated keyrings. A local attacker could use this
flaw to crash the system or, potentially, escalate their privileges on the
system. (CVE-2015-7872, Important)
* A flaw was found in the way the Linux kernel handled IRET faults during
the processing of NMIs. An unprivileged, local user could use this flaw to
crash the system or, potentially (although highly unlikely), escalate their
privileges on the system. (CVE-2015-5157, Moderate)
This update provides a build of the kernel-rt package for Red Hat
Enterprise MRG 2.5 that is layered on Red Hat Enterprise Linux 6, and
provides a number of bug fixes and enhancements, including:
* [md] dm: fix AB-BA deadlock in __dm_destroy()
* [md] revert "dm-mpath: fix stalls when handling invalid ioctl
* [cpufreq] intel_pstate: Fix limits->max_perf and limits->max_policy_pct
rounding errors
* [cpufreq] revert "intel_pstate: fix rounding error in max_freq_pct"
* [crypto] nx: 842 - Add CRC and validation support
* [of] return NUMA_NO_NODE from fallback of_node_to_nid()
(BZ#1277670)
The HP Smart Array (hpsa) SCSI driver has been updated to the latest
version included in a Red Hat release. (BZ#1224096)
This update also fixes the following bugs:
* A heavy load of incoming packets on a fast networking driver (like the
i40e) will both stress the softirq mechanism on the realtime kernel (as
described in BZ#1293229) and exercise the possible livelock in the netpoll
NAPI/busy polling routines (as described in BZ#1293230). The fixes applied
to both BZ#1293229 and BZ#1293230 will address these issues by hardening
the locking mechanism for the netpoll NAPI/busy polling and by enhancing
the way softirqs are serviced. These fixes also create a failsafe to
avoiding RCU stalls on a heavily loaded system and allows the networking
driver to work as expected. (BZ#1200766)
* The nohz_full code in older versions of the MRG-Realtime kernels was
incomplete and known to be problematic due to the way the old
implementation interacted with the real time features in the kernel.
The nohz_full kernel code has been updated enabling this feature to
function as expected and allowing this feature to be enabled in the
realtime kernel. (BZ#1278511)
* Because the realtime kernel replaces most of the spinlocks with
rtmutexes, the locking scheme used in both NAPI polling and busy polling
could become out of synchronization with the State Machine they protected.
This could cause system performance degradation or even a livelock
situation when a machine with faster NICs (10g or 40g) was subject to a
heavy pressure receiving network packets. The locking schemes on NAPI
polling and busy polling routines were hardened to enforce the State
machine sanity to help ensure the system continues to function properly
under pressure. (BZ#1295884)
* A possible livelock in the NAPI polling and busy polling routines could
lead the system to a livelock on threads running at high, realtime,
priorities. The threads running at priorities lower than the ones of the
threads involved in the livelock would be prevented from running on the
CPUs affected by the livelock. Among those lower priority threads are the
rcuc/ threads. Right before (4 jiffies) a RCU stall is detected, the rcuc/
threads on the CPUs facing the livelock have their priorities boosted above
the priority of the threads involved in the livelock. The softirq code was
also updated to be more robust. These modifications allowed the rcuc/
threads to execute even under system pressure, mitigating the RCU stalls.
(BZ#1295885)
All kernel-rt users are advised to upgrade to these updated packages, which
correct these issues and add these enhancements. The system must be
rebooted for this update to take effect.
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": "Updated kernel-rt packages that fix two security issues, several bugs, and\nadd various enhancements are now available for Red Hat Enterprise MRG 2.5.\n\nRed Hat Product Security has rated this update as having Important security\nimpact. Common Vulnerability Scoring System (CVSS) base scores, which give\ndetailed severity ratings, are available for each vulnerability from the\nCVE links in the References section.", "title": "Topic" }, { "category": "general", "text": "The kernel-rt packages contain the Linux kernel, the core of any Linux\noperating system.\n\n* It was found that the Linux kernel\u0027s keys subsystem did not correctly\ngarbage collect uninstantiated keyrings. A local attacker could use this\nflaw to crash the system or, potentially, escalate their privileges on the\nsystem. (CVE-2015-7872, Important)\n\n* A flaw was found in the way the Linux kernel handled IRET faults during\nthe processing of NMIs. An unprivileged, local user could use this flaw to\ncrash the system or, potentially (although highly unlikely), escalate their\nprivileges on the system. (CVE-2015-5157, Moderate)\n\nThis update provides a build of the kernel-rt package for Red Hat\nEnterprise MRG 2.5 that is layered on Red Hat Enterprise Linux 6, and\nprovides a number of bug fixes and enhancements, including:\n\n* [md] dm: fix AB-BA deadlock in __dm_destroy() \n\n* [md] revert \"dm-mpath: fix stalls when handling invalid ioctl\n\n* [cpufreq] intel_pstate: Fix limits-\u003emax_perf and limits-\u003emax_policy_pct\nrounding errors\n\n* [cpufreq] revert \"intel_pstate: fix rounding error in max_freq_pct\"\n\n* [crypto] nx: 842 - Add CRC and validation support\n\n* [of] return NUMA_NO_NODE from fallback of_node_to_nid()\n\n(BZ#1277670)\n\nThe HP Smart Array (hpsa) SCSI driver has been updated to the latest\nversion included in a Red Hat release. (BZ#1224096)\n\nThis update also fixes the following bugs:\n\n* A heavy load of incoming packets on a fast networking driver (like the\ni40e) will both stress the softirq mechanism on the realtime kernel (as\ndescribed in BZ#1293229) and exercise the possible livelock in the netpoll\nNAPI/busy polling routines (as described in BZ#1293230). The fixes applied\nto both BZ#1293229 and BZ#1293230 will address these issues by hardening\nthe locking mechanism for the netpoll NAPI/busy polling and by enhancing\nthe way softirqs are serviced. These fixes also create a failsafe to\navoiding RCU stalls on a heavily loaded system and allows the networking\ndriver to work as expected. (BZ#1200766)\n\n* The nohz_full code in older versions of the MRG-Realtime kernels was\nincomplete and known to be problematic due to the way the old\nimplementation interacted with the real time features in the kernel.\nThe nohz_full kernel code has been updated enabling this feature to\nfunction as expected and allowing this feature to be enabled in the\nrealtime kernel. (BZ#1278511)\n\n* Because the realtime kernel replaces most of the spinlocks with\nrtmutexes, the locking scheme used in both NAPI polling and busy polling\ncould become out of synchronization with the State Machine they protected.\nThis could cause system performance degradation or even a livelock\nsituation when a machine with faster NICs (10g or 40g) was subject to a\nheavy pressure receiving network packets. The locking schemes on NAPI\npolling and busy polling routines were hardened to enforce the State\nmachine sanity to help ensure the system continues to function properly\nunder pressure. (BZ#1295884)\n\n* A possible livelock in the NAPI polling and busy polling routines could\nlead the system to a livelock on threads running at high, realtime,\npriorities. The threads running at priorities lower than the ones of the\nthreads involved in the livelock would be prevented from running on the\nCPUs affected by the livelock. Among those lower priority threads are the\nrcuc/ threads. Right before (4 jiffies) a RCU stall is detected, the rcuc/\nthreads on the CPUs facing the livelock have their priorities boosted above\nthe priority of the threads involved in the livelock. The softirq code was\nalso updated to be more robust. These modifications allowed the rcuc/\nthreads to execute even under system pressure, mitigating the RCU stalls.\n(BZ#1295885)\n\nAll kernel-rt users are advised to upgrade to these updated packages, which\ncorrect these issues and add these enhancements. The system must be\nrebooted for this update to take effect.", "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-2016:0224", "url": "https://access.redhat.com/errata/RHSA-2016:0224" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "1259577", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1259577" }, { "category": "external", "summary": "1272371", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1272371" }, { "category": "external", "summary": "1277670", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1277670" }, { "category": "external", "summary": "1278511", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1278511" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2016/rhsa-2016_0224.json" } ], "title": "Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update", "tracking": { "current_release_date": "2024-11-14T17:19:07+00:00", "generator": { "date": "2024-11-14T17:19:07+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.0" } }, "id": "RHSA-2016:0224", "initial_release_date": "2016-02-16T14:59:08+00:00", "revision_history": [ { "date": "2016-02-16T14:59:08+00:00", "number": "1", "summary": "Initial version" }, { "date": "2016-02-16T14:59:08+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-14T17:19:07+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat MRG Realtime for RHEL 6 Server v.2", "product": { "name": "Red Hat MRG Realtime for RHEL 6 Server v.2", "product_id": "6Server-MRG-Realtime-2", "product_identification_helper": { "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6" } } } ], "category": "product_family", "name": "Red Hat Enterprise MRG for RHEL-6" }, { "branches": [ { "category": "product_version", "name": "kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "product": { "name": "kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "product_id": "kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "product_identification_helper": { "purl": "pkg:rpm/redhat/kernel-rt-trace-debuginfo@3.10.0-327.rt56.171.el6rt?arch=x86_64\u0026epoch=1" } } }, { "category": 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"full_product_name": { "name": "kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2", "product_id": "6Server-MRG-Realtime-2:kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64" }, "product_reference": "kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "relates_to_product_reference": "6Server-MRG-Realtime-2" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-rt-trace-devel-1:3.10.0-327.rt56.171.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2", "product_id": "6Server-MRG-Realtime-2:kernel-rt-trace-devel-1:3.10.0-327.rt56.171.el6rt.x86_64" }, "product_reference": "kernel-rt-trace-devel-1:3.10.0-327.rt56.171.el6rt.x86_64", "relates_to_product_reference": "6Server-MRG-Realtime-2" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-rt-vanilla-1:3.10.0-327.rt56.171.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2", "product_id": "6Server-MRG-Realtime-2:kernel-rt-vanilla-1:3.10.0-327.rt56.171.el6rt.x86_64" }, "product_reference": "kernel-rt-vanilla-1:3.10.0-327.rt56.171.el6rt.x86_64", "relates_to_product_reference": "6Server-MRG-Realtime-2" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2", "product_id": "6Server-MRG-Realtime-2:kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64" }, "product_reference": "kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "relates_to_product_reference": "6Server-MRG-Realtime-2" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-rt-vanilla-devel-1:3.10.0-327.rt56.171.el6rt.x86_64 as a component of Red Hat MRG Realtime for RHEL 6 Server v.2", "product_id": "6Server-MRG-Realtime-2:kernel-rt-vanilla-devel-1:3.10.0-327.rt56.171.el6rt.x86_64" }, "product_reference": "kernel-rt-vanilla-devel-1:3.10.0-327.rt56.171.el6rt.x86_64", "relates_to_product_reference": "6Server-MRG-Realtime-2" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "Andy Lutomirski" ] } ], "cve": "CVE-2015-5157", "cwe": { "id": "CWE-435", "name": "Improper Interaction Between Multiple Correctly-Behaving Entities" }, "discovery_date": "2015-07-14T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1259577" } ], "notes": [ { "category": "description", "text": "A flaw was found in the way the Linux kernel handled IRET faults during the processing of NMIs. An unprivileged, local user could use this flaw to crash the system or, potentially (although highly unlikely), escalate their privileges on the system.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: x86-64: IRET faults during NMIs processing", "title": "Vulnerability summary" }, { "category": "other", "text": "This issue does affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2. Future updates in the respective releases may address this flaw.\n\nRed Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.", "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": [ "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.171.el6rt.src", "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-devel-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", 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"RHBZ#1259577", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1259577" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2015-5157", "url": "https://www.cve.org/CVERecord?id=CVE-2015-5157" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2015-5157", "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-5157" } ], "release_date": "2015-07-22T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2016-02-16T14:59:08+00:00", "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.171.el6rt.src", "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-devel-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debuginfo-common-x86_64-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-devel-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-doc-1:3.10.0-327.rt56.171.el6rt.noarch", "6Server-MRG-Realtime-2:kernel-rt-firmware-1:3.10.0-327.rt56.171.el6rt.noarch", "6Server-MRG-Realtime-2:kernel-rt-trace-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-trace-devel-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-vanilla-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-vanilla-devel-1:3.10.0-327.rt56.171.el6rt.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2016:0224" } ], "scores": [ { "cvss_v2": { "accessComplexity": "HIGH", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 6.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:H/Au:N/C:C/I:C/A:C", "version": "2.0" }, "products": [ "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.171.el6rt.src", "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-devel-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debuginfo-common-x86_64-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-devel-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-doc-1:3.10.0-327.rt56.171.el6rt.noarch", "6Server-MRG-Realtime-2:kernel-rt-firmware-1:3.10.0-327.rt56.171.el6rt.noarch", "6Server-MRG-Realtime-2:kernel-rt-trace-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-trace-devel-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-vanilla-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-vanilla-devel-1:3.10.0-327.rt56.171.el6rt.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "kernel: x86-64: IRET faults during NMIs processing" }, { "cve": "CVE-2015-7872", "cwe": { "id": "CWE-456", "name": "Missing Initialization of a Variable" }, "discovery_date": "2015-10-15T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1272371" } ], "notes": [ { "category": "description", "text": "It was found that the Linux kernel\u0027s keys subsystem did not correctly garbage collect uninstantiated keyrings. A local attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: Keyrings crash triggerable by unprivileged user", "title": "Vulnerability summary" }, { "category": "other", "text": "This issue affects the Linux kernels as shipped with Red Hat Enterprise Linux 6 , 7 and Red Hat MRG 2. Future updates for the respective releases may address this flaw.", "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": [ "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.171.el6rt.src", "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-devel-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debuginfo-common-x86_64-1:3.10.0-327.rt56.171.el6rt.x86_64", 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"external", "summary": "https://www.cve.org/CVERecord?id=CVE-2015-7872", "url": "https://www.cve.org/CVERecord?id=CVE-2015-7872" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2015-7872", "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-7872" } ], "release_date": "2015-10-12T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2016-02-16T14:59:08+00:00", "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.171.el6rt.src", "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", 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"restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2016:0224" } ], "scores": [ { "cvss_v2": { "accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0" }, "products": [ "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.171.el6rt.src", "6Server-MRG-Realtime-2:kernel-rt-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debug-devel-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-debuginfo-common-x86_64-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-devel-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-doc-1:3.10.0-327.rt56.171.el6rt.noarch", "6Server-MRG-Realtime-2:kernel-rt-firmware-1:3.10.0-327.rt56.171.el6rt.noarch", "6Server-MRG-Realtime-2:kernel-rt-trace-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-trace-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-trace-devel-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-vanilla-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-vanilla-debuginfo-1:3.10.0-327.rt56.171.el6rt.x86_64", "6Server-MRG-Realtime-2:kernel-rt-vanilla-devel-1:3.10.0-327.rt56.171.el6rt.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "kernel: Keyrings crash triggerable by unprivileged user" } ] }
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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.