rhsa-2019_2043
Vulnerability from csaf_redhat
Published
2019-08-07 19:56
Modified
2024-11-05 21:16
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):
* Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)
* Kernel: page cache side channel attacks (CVE-2019-5489)
* kernel: Buffer overflow in hidp_process_report (CVE-2018-9363)
* kernel: l2tp: Race condition between pppol2tp_session_create() and l2tp_eth_create() (CVE-2018-9517)
* kernel: kvm: guest userspace to guest kernel write (CVE-2018-10853)
* kernel: use-after-free Read in vhost_transport_send_pkt (CVE-2018-14625)
* kernel: use-after-free in ucma_leave_multicast in drivers/infiniband/core/ucma.c (CVE-2018-14734)
* kernel: Mishandling of indirect calls weakens Spectre mitigation for paravirtual guests (CVE-2018-15594)
* kernel: TLB flush happens too late on mremap (CVE-2018-18281)
* kernel: Heap address information leak while using L2CAP_GET_CONF_OPT (CVE-2019-3459)
* kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP (CVE-2019-3460)
* kernel: denial of service vector through vfio DMA mappings (CVE-2019-3882)
* kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599)
* kernel: a NULL pointer dereference in drivers/scsi/megaraid/megaraid_sas_base.c leading to DoS (CVE-2019-11810)
* kernel: fs/ext4/extents.c leads to information disclosure (CVE-2019-11833)
* kernel: Information exposure in fd_locked_ioctl function in drivers/block/floppy.c (CVE-2018-7755)
* kernel: Memory leak in drivers/net/wireless/mac80211_hwsim.c:hwsim_new_radio_nl() can lead to potential denial of service (CVE-2018-8087)
* kernel: HID: debug: Buffer overflow in hid_debug_events_read() in drivers/hid/hid-debug.c (CVE-2018-9516)
* kernel: Integer overflow in the alarm_timer_nsleep function (CVE-2018-13053)
* kernel: NULL pointer dereference in lookup_slow function (CVE-2018-13093)
* kernel: NULL pointer dereference in xfs_da_shrink_inode function (CVE-2018-13094)
* kernel: NULL pointer dereference in fs/xfs/libxfs/xfs_inode_buf.c (CVE-2018-13095)
* kernel: Information leak in cdrom_ioctl_drive_status (CVE-2018-16658)
* kernel: out-of-bound read in memcpy_fromiovecend() (CVE-2018-16885)
* Kernel: KVM: leak of uninitialized stack contents to guest (CVE-2019-7222)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.
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": "Vulnerability description"
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"title": "Vulnerability summary"
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{
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"category": "self",
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"url": "https://access.redhat.com/security/cve/CVE-2019-3459"
},
{
"category": "external",
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},
{
"category": "external",
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-3459",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-3459"
}
],
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{
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"ids": [
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"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s implementation of logical link control and adaptation protocol (L2CAP), part of the Bluetooth stack in the l2cap_parse_conf_rsp and l2cap_parse_conf_req functions. An attacker with physical access within the range of standard Bluetooth transmission can create a specially crafted packet. The response to this specially crafted packet can contain part of the kernel stack which can be used in a further attack.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP",
"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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"text": "A flaw was found in the Linux kernel\u0027s vfio interface implementation that permits violation of the user\u0027s locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS).",
"title": "Vulnerability description"
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"text": "kernel: denial of service vector through vfio DMA mappings",
"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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{
"cve": "CVE-2019-11833",
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{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s implementation of ext4 extent management. The kernel doesn\u0027t correctly initialize memory regions in the extent tree block which may be exported to a local user to obtain sensitive information by reading empty/uninitialized data from the filesystem.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: fs/ext4/extents.c leads to information disclosure",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is a possible information leak of data that existed in the extent tree blocks. While the attacker does not have control of what exists in the blocks prior to this point they may be able to glean confidential information or possibly information that could be used to further another attack.",
"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": "https://nvd.nist.gov/vuln/detail/CVE-2019-11833",
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"date": "2019-08-07T19:56:13+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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Loading...
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- 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.