rhsa-2012_0370
Vulnerability from csaf_redhat
Published
2012-03-07 14:32
Modified
2024-11-05 17:43
Summary
Red Hat Security Advisory: xen security and bug fix update
Notes
Topic
Updated xen packages that fix one security issue and two bugs are now
available for Red Hat Enterprise Linux 5.
The Red Hat Security Response Team 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.
A heap overflow flaw was found in the way QEMU emulated the e1000 network
interface card. A privileged guest user in a virtual machine whose network
interface is configured to use the e1000 emulated driver could use this
flaw to crash QEMU or, possibly, escalate their privileges on the host.
(CVE-2012-0029)
Red Hat would like to thank Nicolae Mogoreanu for reporting this issue.
This update also fixes the following bugs:
* Adding support for jumbo frames introduced incorrect network device
expansion when a bridge is created. The expansion worked correctly with the
default configuration, but could have caused network setup failures when a
user-defined network script was used. This update changes the expansion so
network setup will not fail, even when a user-defined network script is
used. (BZ#797191)
* A bug was found in xenconsoled, the Xen hypervisor console daemon. If
timestamp logging for this daemon was enabled (using both the
XENCONSOLED_TIMESTAMP_HYPERVISOR_LOG and XENCONSOLED_TIMESTAMP_GUEST_LOG
options in "/etc/sysconfig/xend"), xenconsoled could crash if the guest
emitted a lot of information to its serial console in a short period of
time. Eventually, the guest would freeze after the console buffer was
filled due to the crashed xenconsoled. Timestamp logging is disabled by
default. (BZ#797836)
All xen users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. 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 xen packages that fix one security issue and two bugs are now\navailable for Red Hat Enterprise Linux 5.\n\nThe Red Hat Security Response Team has rated this update as having\nimportant security impact. A Common Vulnerability Scoring System (CVSS)\nbase score, which gives a detailed severity rating, is available from the\nCVE link in the References 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\nA heap overflow flaw was found in the way QEMU emulated the e1000 network\ninterface card. A privileged guest user in a virtual machine whose network\ninterface is configured to use the e1000 emulated driver could use this\nflaw to crash QEMU or, possibly, escalate their privileges on the host.\n(CVE-2012-0029)\n\nRed Hat would like to thank Nicolae Mogoreanu for reporting this issue.\n\nThis update also fixes the following bugs:\n\n* Adding support for jumbo frames introduced incorrect network device\nexpansion when a bridge is created. The expansion worked correctly with the\ndefault configuration, but could have caused network setup failures when a\nuser-defined network script was used. This update changes the expansion so\nnetwork setup will not fail, even when a user-defined network script is\nused. (BZ#797191)\n\n* A bug was found in xenconsoled, the Xen hypervisor console daemon. If\ntimestamp logging for this daemon was enabled (using both the\nXENCONSOLED_TIMESTAMP_HYPERVISOR_LOG and XENCONSOLED_TIMESTAMP_GUEST_LOG\noptions in \"/etc/sysconfig/xend\"), xenconsoled could crash if the guest\nemitted a lot of information to its serial console in a short period of\ntime. Eventually, the guest would freeze after the console buffer was\nfilled due to the crashed xenconsoled. Timestamp logging is disabled by\ndefault. (BZ#797836)\n\nAll xen users are advised to upgrade to these updated packages, which\ncontain backported patches to correct these issues. 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-2012:0370", "url": "https://access.redhat.com/errata/RHSA-2012:0370" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "772075", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=772075" }, { "category": "external", "summary": "797191", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=797191" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_0370.json" } ], "title": "Red Hat Security Advisory: xen security and bug fix update", "tracking": { "current_release_date": "2024-11-05T17:43:27+00:00", "generator": { "date": "2024-11-05T17:43:27+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.1.1" } }, "id": "RHSA-2012:0370", "initial_release_date": "2012-03-07T14:32:00+00:00", "revision_history": [ { "date": "2012-03-07T14:32:00+00:00", "number": "1", "summary": "Initial version" }, { "date": "2012-03-07T14:35:47+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-05T17:43:27+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "RHEL Desktop Multi OS 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description" }, { "category": "summary", "text": "qemu: e1000: process_tx_desc legacy mode packets heap overflow", "title": "Vulnerability summary" }, { "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-5.8.Z:xen-0:3.0.3-135.el5_8.2.i386", "5Client-5.8.Z:xen-0:3.0.3-135.el5_8.2.ia64", "5Client-5.8.Z:xen-0:3.0.3-135.el5_8.2.src", "5Client-5.8.Z:xen-0:3.0.3-135.el5_8.2.x86_64", "5Client-5.8.Z:xen-debuginfo-0:3.0.3-135.el5_8.2.i386", "5Client-5.8.Z:xen-debuginfo-0:3.0.3-135.el5_8.2.ia64", "5Client-5.8.Z:xen-debuginfo-0:3.0.3-135.el5_8.2.x86_64", "5Client-5.8.Z:xen-devel-0:3.0.3-135.el5_8.2.i386", "5Client-5.8.Z:xen-devel-0:3.0.3-135.el5_8.2.ia64", "5Client-5.8.Z:xen-devel-0:3.0.3-135.el5_8.2.x86_64", 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all previously-released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. 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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.