rhsa-2011_0833
Vulnerability from csaf_redhat
Published
2011-05-31 14:03
Modified
2024-09-15 19:08
Summary
Red Hat Security Advisory: kernel security and bug fix update
Notes
Topic
Updated kernel packages that fix multiple security issues and several 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. 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 packages contain the Linux kernel, the core of any Linux
operating system.
This update fixes the following security issues:
* A flaw in the dccp_rcv_state_process() function could allow a remote
attacker to cause a denial of service, even when the socket was already
closed. (CVE-2011-1093, Important)
* Multiple buffer overflow flaws were found in the Linux kernel's
Management Module Support for Message Passing Technology (MPT) based
controllers. A local, unprivileged user could use these flaws to cause a
denial of service, an information leak, or escalate their privileges.
(CVE-2011-1494, CVE-2011-1495, Important)
* A missing validation of a null-terminated string data structure element
in the bnep_sock_ioctl() function could allow a local user to cause an
information leak or a denial of service. (CVE-2011-1079, Moderate)
* Missing error checking in the way page tables were handled in the Xen
hypervisor implementation could allow a privileged guest user to cause the
host, and the guests, to lock up. (CVE-2011-1166, Moderate)
* A flaw was found in the way the Xen hypervisor implementation checked for
the upper boundary when getting a new event channel port. A privileged
guest user could use this flaw to cause a denial of service or escalate
their privileges. (CVE-2011-1763, Moderate)
* The start_code and end_code values in "/proc/[pid]/stat" were not
protected. In certain scenarios, this flaw could be used to defeat Address
Space Layout Randomization (ASLR). (CVE-2011-0726, Low)
* A missing initialization flaw in the sco_sock_getsockopt() function could
allow a local, unprivileged user to cause an information leak.
(CVE-2011-1078, Low)
* A missing validation of a null-terminated string data structure element
in the do_replace() function could allow a local user who has the
CAP_NET_ADMIN capability to cause an information leak. (CVE-2011-1080, Low)
* A buffer overflow flaw in the DEC Alpha OSF partition implementation in
the Linux kernel could allow a local attacker to cause an information leak
by mounting a disk that contains specially-crafted partition tables.
(CVE-2011-1163, Low)
* Missing validations of null-terminated string data structure elements in
the do_replace(), compat_do_replace(), do_ipt_get_ctl(), do_ip6t_get_ctl(),
and do_arpt_get_ctl() functions could allow a local user who has the
CAP_NET_ADMIN capability to cause an information leak. (CVE-2011-1170,
CVE-2011-1171, CVE-2011-1172, Low)
* A heap overflow flaw in the Linux kernel's EFI GUID Partition Table (GPT)
implementation could allow a local attacker to cause a denial of service
by mounting a disk that contains specially-crafted partition tables.
(CVE-2011-1577, Low)
Red Hat would like to thank Dan Rosenberg for reporting CVE-2011-1494 and
CVE-2011-1495; Vasiliy Kulikov for reporting CVE-2011-1079, CVE-2011-1078,
CVE-2011-1080, CVE-2011-1170, CVE-2011-1171, and CVE-2011-1172; Kees Cook
for reporting CVE-2011-0726; and Timo Warns for reporting CVE-2011-1163
and CVE-2011-1577.
This update also fixes several bugs. Documentation for these bug fixes will
be available shortly from the Technical Notes document linked to in the
References section.
Users should upgrade to these updated packages, which contain backported
patches to correct these issues, and fix the bugs noted in the Technical
Notes. 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.
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"title": "kernel: proc: protect mm start_code/end_code in /proc/pid/stat"
},
{
"acknowledgments": [
{
"names": [
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],
"organization": "Openwall"
}
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"discovery_date": "2011-02-28T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "681259"
}
],
"notes": [
{
"category": "description",
"text": "The sco_sock_getsockopt_old function in net/bluetooth/sco.c in the Linux kernel before 2.6.39 does not initialize a certain structure, which allows local users to obtain potentially sensitive information from kernel stack memory via the SCO_CONNINFO option.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: bt sco_conninfo infoleak",
"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"
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"title": "kernel: bt sco_conninfo infoleak"
},
{
"acknowledgments": [
{
"names": [
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],
"organization": "Openwall"
}
],
"cve": "CVE-2011-1079",
"discovery_date": "2011-02-28T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "681260"
}
],
"notes": [
{
"category": "description",
"text": "The bnep_sock_ioctl function in net/bluetooth/bnep/sock.c in the Linux kernel before 2.6.39 does not ensure that a certain device field ends with a \u0027\\0\u0027 character, which allows local users to obtain potentially sensitive information from kernel stack memory, or cause a denial of service (BUG and system crash), via a BNEPCONNADD command.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: bnep device field missing NULL terminator",
"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"
}
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"title": "kernel: bnep device field missing NULL terminator"
},
{
"acknowledgments": [
{
"names": [
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],
"organization": "Openwall"
}
],
"cve": "CVE-2011-1080",
"discovery_date": "2011-02-28T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "681262"
}
],
"notes": [
{
"category": "description",
"text": "The do_replace function in net/bridge/netfilter/ebtables.c in the Linux kernel before 2.6.39 does not ensure that a certain name field ends with a \u0027\\0\u0027 character, which allows local users to obtain potentially sensitive information from kernel stack memory by leveraging the CAP_NET_ADMIN capability to replace a table, and then reading a modprobe command line.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ebtables stack infoleak",
"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"
}
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"title": "kernel: ebtables stack infoleak"
},
{
"cve": "CVE-2011-1093",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"discovery_date": "2011-03-08T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "682954"
}
],
"notes": [
{
"category": "description",
"text": "The dccp_rcv_state_process function in net/dccp/input.c in the Datagram Congestion Control Protocol (DCCP) implementation in the Linux kernel before 2.6.38 does not properly handle packets for a CLOSED endpoint, which allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by sending a DCCP-Close packet followed by a DCCP-Reset packet.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: dccp: fix oops on Reset after close",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 4 as it did not include support for the DCCP protocol. Future updates in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 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"
}
],
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{
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{
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"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.8,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "kernel: dccp: fix oops on Reset after close"
},
{
"acknowledgments": [
{
"names": [
"Timo Warns"
]
}
],
"cve": "CVE-2011-1163",
"discovery_date": "2011-03-16T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "688021"
}
],
"notes": [
{
"category": "description",
"text": "The osf_partition function in fs/partitions/osf.c in the Linux kernel before 2.6.38 does not properly handle an invalid number of partitions, which might allow local users to obtain potentially sensitive information from kernel heap memory via vectors related to partition-table parsing.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: fs/partitions: Corrupted OSF partition table infoleak",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This has been addressed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0833.html, https://rhn.redhat.com/errata/RHSA-2011-0542.html, and https://rhn.redhat.com/errata/RHSA-2011-0500.html. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for\nthis issue is not currently planned to be included in the future updates.",
"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"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2011-1163"
},
{
"category": "external",
"summary": "RHBZ#688021",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=688021"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2011-1163",
"url": "https://www.cve.org/CVERecord?id=CVE-2011-1163"
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{
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"details": "Moderate"
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],
"title": "kernel: xen: x86_64: fix error checking in arch_set_info_guest()"
},
{
"acknowledgments": [
{
"names": [
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],
"organization": "Openwall"
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"discovery_date": "2011-03-21T00:00:00+00:00",
"ids": [
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],
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{
"category": "description",
"text": "net/ipv4/netfilter/arp_tables.c in the IPv4 implementation in the Linux kernel before 2.6.39 does not place the expected \u0027\\0\u0027 character at the end of string data in the values of certain structure members, which allows local users to obtain potentially sensitive information from kernel memory by leveraging the CAP_NET_ADMIN capability to issue a crafted request, and then reading the argument to the resulting modprobe process.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ipv4: netfilter: arp_tables: fix infoleak to userspace",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance\nlife-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore\nthe fix for this issue is not currently planned to be included in the future\nupdates. Future kernel updates in Red Hat Enterprise Linux 5, 6 and Red Hat\nEnterprise MRG 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"
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},
{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=689321"
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{
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"url": "https://www.cve.org/CVERecord?id=CVE-2011-1170"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2011-1170",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-1170"
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"title": "kernel: ipv4: netfilter: arp_tables: fix infoleak to userspace"
},
{
"acknowledgments": [
{
"names": [
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"organization": "Openwall"
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"ids": [
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{
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"text": "net/ipv4/netfilter/ip_tables.c in the IPv4 implementation in the Linux kernel before 2.6.39 does not place the expected \u0027\\0\u0027 character at the end of string data in the values of certain structure members, which allows local users to obtain potentially sensitive information from kernel memory by leveraging the CAP_NET_ADMIN capability to issue a crafted request, and then reading the argument to the resulting modprobe process.",
"title": "Vulnerability description"
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{
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"text": "kernel: ipv4: netfilter: ip_tables: fix infoleak to userspace",
"title": "Vulnerability summary"
},
{
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"text": "Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance\nlife-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates. Future kernel updates in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG may address this flaw.",
"title": "Statement"
},
{
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"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.",
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{
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"title": "kernel: ipv4: netfilter: ip_tables: fix infoleak to userspace"
},
{
"acknowledgments": [
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"names": [
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"organization": "Openwall"
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"ids": [
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{
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"text": "net/ipv6/netfilter/ip6_tables.c in the IPv6 implementation in the Linux kernel before 2.6.39 does not place the expected \u0027\\0\u0027 character at the end of string data in the values of certain structure members, which allows local users to obtain potentially sensitive information from kernel memory by leveraging the CAP_NET_ADMIN capability to issue a crafted request, and then reading the argument to the resulting modprobe process.",
"title": "Vulnerability description"
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{
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"text": "kernel: ipv6: netfilter: ip6_tables: fix infoleak to userspace",
"title": "Vulnerability summary"
},
{
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"text": "Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle,\nhttps://access.redhat.com/support/policy/updates/errata/, therefore the fix for\nthis issue is not currently planned to be included in the future updates. Future kernel updates in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise\nMRG may address this flaw.",
"title": "Statement"
},
{
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"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.",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=689345"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2011-1172",
"url": "https://www.cve.org/CVERecord?id=CVE-2011-1172"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2011-1172",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-1172"
}
],
"release_date": "2011-03-10T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Before applying this update, make sure all previously-released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. Details on how to\nuse the Red Hat Network to apply this update are available at\nhttps://access.redhat.com/kb/docs/DOC-11259\n\nTo install kernel packages manually, use \"rpm -ivh [package]\". Do not\nuse \"rpm -Uvh\" as that will remove the running kernel binaries from\nyour system. You may use \"rpm -e\" to remove old kernels after\ndetermining that the new kernel functions properly on your system.",
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"details": "Low"
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],
"title": "kernel: ipv6: netfilter: ip6_tables: fix infoleak to userspace"
},
{
"acknowledgments": [
{
"names": [
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}
],
"cve": "CVE-2011-1494",
"cwe": {
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"name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
},
"discovery_date": "2011-04-06T00:00:00+00:00",
"ids": [
{
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"text": "694021"
}
],
"notes": [
{
"category": "description",
"text": "Integer overflow in the _ctl_do_mpt_command function in drivers/scsi/mpt2sas/mpt2sas_ctl.c in the Linux kernel 2.6.38 and earlier might allow local users to gain privileges or cause a denial of service (memory corruption) via an ioctl call specifying a crafted value that triggers a heap-based buffer overflow.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: drivers/scsi/mpt2sas: prevent heap overflows",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue did not affect the version of Linux kernel as shipped with Red Hat\nEnterprise Linux 4 as it did not provide support for MPT (Message Passing\nTechnology) based controllers. This has been addressed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0833.html, and https://rhn.redhat.com/errata/RHSA-2011-0542.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html.",
"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"
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{
"category": "external",
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{
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"title": "kernel: drivers/scsi/mpt2sas: prevent heap overflows"
},
{
"acknowledgments": [
{
"names": [
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}
],
"cve": "CVE-2011-1495",
"cwe": {
"id": "CWE-119",
"name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
},
"discovery_date": "2011-04-06T00:00:00+00:00",
"ids": [
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"text": "694021"
}
],
"notes": [
{
"category": "description",
"text": "drivers/scsi/mpt2sas/mpt2sas_ctl.c in the Linux kernel 2.6.38 and earlier does not validate (1) length and (2) offset values before performing memory copy operations, which might allow local users to gain privileges, cause a denial of service (memory corruption), or obtain sensitive information from kernel memory via a crafted ioctl call, related to the _ctl_do_mpt_command and _ctl_diag_read_buffer functions.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: drivers/scsi/mpt2sas: prevent heap overflows",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue did not affect the version of Linux kernel as shipped with Red Hat\nEnterprise Linux 4 as it did not provide support for MPT (Message Passing\nTechnology) based controllers. This has been addressed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0833.html, and https://rhn.redhat.com/errata/RHSA-2011-0542.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html.",
"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"
}
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"category": "self",
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"url": "https://access.redhat.com/security/cve/CVE-2011-1495"
},
{
"category": "external",
"summary": "RHBZ#694021",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=694021"
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{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2011-1495",
"url": "https://www.cve.org/CVERecord?id=CVE-2011-1495"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2011-1495",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-1495"
}
],
"release_date": "2011-04-05T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Before applying this update, make sure all previously-released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. Details on how to\nuse the Red Hat Network to apply this update are available at\nhttps://access.redhat.com/kb/docs/DOC-11259\n\nTo install kernel packages manually, use \"rpm -ivh [package]\". Do not\nuse \"rpm -Uvh\" as that will remove the running kernel binaries from\nyour system. You may use \"rpm -e\" to remove old kernels after\ndetermining that the new kernel functions properly on your system.",
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"details": "Important"
}
],
"title": "kernel: drivers/scsi/mpt2sas: prevent heap overflows"
},
{
"acknowledgments": [
{
"names": [
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]
}
],
"cve": "CVE-2011-1577",
"discovery_date": "2011-04-13T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "695976"
}
],
"notes": [
{
"category": "description",
"text": "Heap-based buffer overflow in the is_gpt_valid function in fs/partitions/efi.c in the Linux kernel 2.6.38 and earlier allows physically proximate attackers to cause a denial of service (OOPS) or possibly have unspecified other impact via a crafted size of the EFI GUID partition-table header on removable media.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: corrupted GUID partition tables can cause kernel oops",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue affects the versions of Linux kernel as shipped with Red Hat\nEnterprise Linux 4, 5, 6, and Red Hat Enterprise MRG. This has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0833.html, https://rhn.redhat.com/errata/RHSA-2011-1465.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.",
"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"
}
],
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{
"category": "external",
"summary": "RHBZ#695976",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=695976"
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{
"category": "external",
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{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2011-1577",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-1577"
}
],
"release_date": "2011-04-13T00:00:00+00:00",
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{
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"details": "Before applying this update, make sure all previously-released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. Details on how to\nuse the Red Hat Network to apply this update are available at\nhttps://access.redhat.com/kb/docs/DOC-11259\n\nTo install kernel packages manually, use \"rpm -ivh [package]\". Do not\nuse \"rpm -Uvh\" as that will remove the running kernel binaries from\nyour system. You may use \"rpm -e\" to remove old kernels after\ndetermining that the new kernel functions properly on your system.",
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"title": "kernel: corrupted GUID partition tables can cause kernel oops"
},
{
"cve": "CVE-2011-1763",
"discovery_date": "2011-04-30T00:00:00+00:00",
"ids": [
{
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{
"category": "description",
"text": "The get_free_port function in Xen allows local authenticated DomU users to cause a denial of service or possibly gain privileges via unspecified vectors involving a new event channel port.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: xen: improper upper boundary check in get_free_port() function",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue only affects Red Hat Enterprise Linux 5 as we did not backport upstream Xen unstable commit 2dcdd2fcb945. The versions of the Linux kernel as shipped with Red Hat Enterprise Linux 4, 6, and Red Hat Enterprise MRG are not affected.",
"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"
}
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2011-1763"
},
{
"category": "external",
"summary": "RHBZ#701240",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=701240"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2011-1763",
"url": "https://www.cve.org/CVERecord?id=CVE-2011-1763"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2011-1763",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-1763"
}
],
"release_date": "2011-05-31T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Before applying this update, make sure all previously-released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. Details on how to\nuse the Red Hat Network to apply this update are available at\nhttps://access.redhat.com/kb/docs/DOC-11259\n\nTo install kernel packages manually, use \"rpm -ivh [package]\". Do not\nuse \"rpm -Uvh\" as that will remove the running kernel binaries from\nyour system. You may use \"rpm -e\" to remove old kernels after\ndetermining that the new kernel functions properly on your system.",
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{
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"accessVector": "ADJACENT_NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "COMPLETE",
"baseScore": 6.5,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:A/AC:H/Au:S/C:C/I:C/A:C",
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: xen: improper upper boundary check in get_free_port() function"
}
]
}
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