rhsa-2015_1002
Vulnerability from csaf_redhat
Published
2015-05-13 11:22
Modified
2024-11-14 15:26
Summary
Red Hat Security Advisory: xen security update
Notes
Topic
Updated xen packages that fix one security issue are now available for Red
Hat Enterprise Linux 5.
Red Hat Product Security has rated this update as having Important security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.
Details
The xen packages contain administration tools and the xend service for
managing the kernel-xen kernel for virtualization on Red Hat Enterprise
Linux.
An out-of-bounds memory access flaw was found in the way QEMU's virtual
Floppy Disk Controller (FDC) handled FIFO buffer access while processing
certain FDC commands. A privileged guest user could use this flaw to crash
the guest or, potentially, execute arbitrary code on the host with the
privileges of the host's QEMU process corresponding to the guest.
(CVE-2015-3456)
Red Hat would like to thank Jason Geffner of CrowdStrike for reporting
this issue.
All xen users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing the
updated packages, all running fully-virtualized guests must be restarted
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 xen packages that fix one security issue are now available for Red\nHat Enterprise Linux 5.\n\nRed Hat Product Security has rated this update as having Important security\nimpact. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available from the CVE link in the\nReferences section.", "title": "Topic" }, { "category": "general", "text": "The xen packages contain administration tools and the xend service for\nmanaging the kernel-xen kernel for virtualization on Red Hat Enterprise\nLinux.\n\nAn out-of-bounds memory access flaw was found in the way QEMU\u0027s virtual\nFloppy Disk Controller (FDC) handled FIFO buffer access while processing\ncertain FDC commands. A privileged guest user could use this flaw to crash\nthe guest or, potentially, execute arbitrary code on the host with the\nprivileges of the host\u0027s QEMU process corresponding to the guest.\n(CVE-2015-3456)\n\nRed Hat would like to thank Jason Geffner of CrowdStrike for reporting\nthis issue.\n\nAll xen users are advised to upgrade to these updated packages, which\ncontain a backported patch to correct this issue. After installing the\nupdated packages, all running fully-virtualized guests must be restarted\nfor 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-2015:1002", "url": "https://access.redhat.com/errata/RHSA-2015:1002" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "1218611", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1218611" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2015/rhsa-2015_1002.json" } ], "title": "Red Hat Security Advisory: xen security update", "tracking": { "current_release_date": "2024-11-14T15:26:42+00:00", "generator": { "date": "2024-11-14T15:26:42+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.0" } }, "id": "RHSA-2015:1002", "initial_release_date": "2015-05-13T11:22:45+00:00", "revision_history": [ { "date": "2015-05-13T11:22:45+00:00", "number": "1", "summary": "Initial version" }, { "date": "2015-05-13T11:22:45+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-14T15:26:42+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux Desktop Multi OS (v. 5 client)", "product": { "name": "Red Hat Enterprise Linux Desktop Multi OS (v. 5 client)", 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"system_name": "Red Hat Bugzilla ID", "text": "1218611" } ], "notes": [ { "category": "description", "text": "An out-of-bounds memory access flaw was found in the way QEMU\u0027s virtual Floppy Disk Controller (FDC) handled FIFO buffer access while processing certain FDC commands. A privileged guest user could use this flaw to crash the guest or, potentially, execute arbitrary code on the host with the privileges of the host\u0027s QEMU process corresponding to the guest.", "title": "Vulnerability description" }, { "category": "summary", "text": "qemu: fdc: out-of-bounds fifo buffer memory access", "title": "Vulnerability summary" }, { "category": "other", "text": "This issue affects the versions of the kvm and xen packages as shipped with Red Hat Enterprise Linux 5, the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7, and the versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3. Future updates for the respective releases will 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": [ "5Client-5.11.Z:xen-0:3.0.3-146.el5_11.i386", "5Client-5.11.Z:xen-0:3.0.3-146.el5_11.ia64", "5Client-5.11.Z:xen-0:3.0.3-146.el5_11.src", "5Client-5.11.Z:xen-0:3.0.3-146.el5_11.x86_64", "5Client-5.11.Z:xen-debuginfo-0:3.0.3-146.el5_11.i386", "5Client-5.11.Z:xen-debuginfo-0:3.0.3-146.el5_11.ia64", "5Client-5.11.Z:xen-debuginfo-0:3.0.3-146.el5_11.x86_64", "5Client-5.11.Z:xen-devel-0:3.0.3-146.el5_11.i386", "5Client-5.11.Z:xen-devel-0:3.0.3-146.el5_11.ia64", "5Client-5.11.Z:xen-devel-0:3.0.3-146.el5_11.x86_64", "5Client-5.11.Z:xen-libs-0:3.0.3-146.el5_11.i386", 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Sightings
Author | Source | Type | Date |
---|
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.