rhsa-2020_2854
Vulnerability from csaf_redhat
Published
2020-07-07 13:23
Modified
2024-09-16 04:16
Summary
Red Hat Security Advisory: kernel-alt security and bug fix update
Notes
Topic
An update for kernel-alt 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-alt packages provide the Linux kernel version 4.x.
Security Fix(es):
* kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)
* Kernel: ppc: kvm: conflicting use of HSTATE_HOST_R1 to store r1 state leads to host stack corruption (CVE-2020-8834)
* Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario (CVE-2020-12888)
* kernel: use after free due to race condition in the video driver leads to local privilege escalation (CVE-2019-9458)
* kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c (CVE-2019-11811)
* kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)
* kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c (CVE-2019-18808)
* kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c and fs/ext4/super.c (CVE-2019-19767)
* kernel: an out-of-bounds write via crafted keycode table (CVE-2019-20636)
* kernel: use-after-free read in napi_gro_frags() in the Linux kernel (CVE-2020-10720)
* kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c (CVE-2020-11565)
* kernel: A memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for a DoS (CVE-2019-19062)
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.
Bug Fix(es):
* XFS: Metadata corruption detected at xfs_attr3_leaf_read_verify [rhel-alt-7.6.z] (BZ#1830836)
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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{
"acknowledgments": [
{
"names": [
"Evgenii Shatokhin",
"Vasily Averin"
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"organization": "Virtuozzo"
}
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"cve": "CVE-2018-16884",
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"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2018-12-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1660375"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: nfs: use-after-free in svc_process_common()",
"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: nfs: use-after-free in svc_process_common()"
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{
"cve": "CVE-2019-9458",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
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"discovery_date": "2019-09-07T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1819377"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s video driver. A race condition, leading to a use-after-free, could lead to a local privilege escalation. User interaction is not needed for exploitation.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: use after free due to race condition in the video driver leads to local privilege escalation",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue is rated as having Moderate impact, because of the need of additional privileges (usually local console user) to access the video device driver.",
"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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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
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"title": "kernel: use after free due to race condition in the video driver leads to local privilege escalation"
},
{
"cve": "CVE-2019-11811",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2019-05-07T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1709180"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s implementation of IPMI (remote baseband access). An attacker, with local access to read /proc/ioports, may be able to create a use-after-free condition when the kernel module is unloaded which may result in privilege escalation.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw has been rated as \"Moderate\" as the attacker needs to be able to abuse this flaw in a very narrow race condition of the kernel module being unloaded. This scoring system from this flaw differentiates from other sources as the attacker must have a local account to be able to read the file (/proc/ioports) while the module is unloaded. None of the above actions are \u0027network facing\u0027 attack vectors.",
"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": [
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-11811"
},
{
"category": "external",
"summary": "RHBZ#1709180",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1709180"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-11811",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-11811"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-11811",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11811"
}
],
"release_date": "2019-05-07T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"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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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
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"details": "Moderate"
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"title": "kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c"
},
{
"cve": "CVE-2019-15917",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2019-10-09T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1760100"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s implementation of the HCI UART driver. A local attacker with access permissions to the Bluetooth device can issue an ioctl, which triggers the hci_uart_set_proto() function in drivers/bluetooth/hci_ldisc.c. The flaw in this function can cause memory corruption or a denial of service because of a use-after-free issue when the hci_uart_register_dev() fails.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: use-after-free in drivers/bluetooth/hci_ldisc.c",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw is rated as a Moderate as it requires the local attacker to have permissions to issue ioctl commands to the bluetooth device and bluetooth hardware to be present.",
"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-2019-15917"
},
{
"category": "external",
"summary": "RHBZ#1760100",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1760100"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-15917",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-15917"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-15917",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-15917"
}
],
"release_date": "2019-09-04T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"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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"title": "kernel: use-after-free in drivers/bluetooth/hci_ldisc.c"
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{
"cve": "CVE-2019-18808",
"cwe": {
"id": "CWE-400",
"name": "Uncontrolled Resource Consumption"
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"discovery_date": "2019-11-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1777418"
}
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"notes": [
{
"category": "description",
"text": "A flaw was found in the AMD Cryptographic Co-processor driver in the Linux kernel. An attacker, able to send invalid SHA type commands, could cause the system to crash. The highest threat from this vulnerability is to system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue is rated as having Moderate impact because it affects only specific hardware enabled systems.",
"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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"category": "external",
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-18808",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18808"
}
],
"release_date": "2019-11-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"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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"title": "kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c"
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{
"cve": "CVE-2019-19062",
"cwe": {
"id": "CWE-400",
"name": "Uncontrolled Resource Consumption"
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"ids": [
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"system_name": "Red Hat Bugzilla ID",
"text": "1775021"
}
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"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel. The crypto_report function mishandles resource cleanup on error. A local attacker able to induce the error conditions could use this flaw to crash the system. The highest threat from this vulnerability is to system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for DoS",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue is rated as having Low impact because of the preconditions needed to trigger the error cleanup code path.",
"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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"category": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1775021"
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"url": "https://www.cve.org/CVERecord?id=CVE-2019-19062"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-19062",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19062"
}
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"release_date": "2019-11-21T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"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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"title": "kernel: memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for DoS"
},
{
"cve": "CVE-2019-19767",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
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"discovery_date": "2019-12-23T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1786160"
}
],
"notes": [
{
"category": "description",
"text": "A use-after-free flaw was found in the Linux kernel\u2019s ext4 file system functionality when the user mount ext4 partition, with the usage of an additional debug parameter is defining an extra inode size. If this parameter has a non zero value, this flaw allows a local user to crash the system when inode expansion happens.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c and fs/ext4/super.c",
"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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"category": "self",
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"url": "https://access.redhat.com/security/cve/CVE-2019-19767"
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"category": "external",
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"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-19767",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-19767"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-19767",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19767"
}
],
"release_date": "2019-11-07T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"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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"integrityImpact": "NONE",
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"title": "kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c and fs/ext4/super.c"
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{
"cve": "CVE-2019-20636",
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"id": "CWE-787",
"name": "Out-of-bounds Write"
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"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1824059"
}
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"notes": [
{
"category": "description",
"text": "An out-of-bounds write flaw was found in the Linux kernel. A crafted keycode table could be used by drivers/input/input.c to perform the out-of-bounds write. A local user with root access can insert garbage to this keycode table that can lead to out-of-bounds memory access. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: out-of-bounds write via crafted keycode table",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue was rated as having Moderate impact because of the need of physical access or administrator privileges to trigger it.",
"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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"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-20636",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-20636"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-20636",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20636"
}
],
"release_date": "2020-04-04T00:00:00+00:00",
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{
"category": "vendor_fix",
"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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},
{
"category": "workaround",
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"details": "Moderate"
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"title": "kernel: out-of-bounds write via crafted keycode table"
},
{
"acknowledgments": [
{
"names": [
"Gustavo Romero",
"Paul Mackerras"
]
}
],
"cve": "CVE-2020-8834",
"cwe": {
"id": "CWE-121",
"name": "Stack-based Buffer Overflow"
},
"discovery_date": "2020-04-01T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1819615"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the way the KVM hypervisor on the Power8 processor stores the r1 register state in the \u0027HSTATE_HOST_R1\u0027 field on the Linux kernel stack. This flaw occurs while handling hypercalls in Transactional Memory (TM) suspend mode in the kvmppc_save_tm and kvmppc_restore_tm routines, leading to host stack corruption. R1 register holds a stack frame address and its corruption leads the kernel into panic state. A guest user can use this flaw to crash the host kernel, resulting in a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "Kernel: ppc: kvm: conflicting use of HSTATE_HOST_R1 to store r1 state leads to host stack corruption",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue does not affect the versions of the Linux kernel as shipped with the Red Hat Enterprise Linux 5, 6, 8 and Red Hat Enterprise MRG 2.\nThis issue affects the versions of the kernel package as shipped with the Red Hat Enterprise Linux 7. Future kernel updates for the Red Hat Enterprise Linux 7 may address this issue.",
"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-2020-8834"
},
{
"category": "external",
"summary": "RHBZ#1819615",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1819615"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-8834",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-8834"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-8834",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8834"
},
{
"category": "external",
"summary": "https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1867717",
"url": "https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1867717"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2020/04/06/2",
"url": "https://www.openwall.com/lists/oss-security/2020/04/06/2"
}
],
"release_date": "2020-04-06T16:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
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"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
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"title": "Kernel: ppc: kvm: conflicting use of HSTATE_HOST_R1 to store r1 state leads to host stack corruption"
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{
"cve": "CVE-2020-10720",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2019-12-09T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1781204"
}
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"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u2019s implementation of GRO. This flaw allows an attacker with local access to crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: use-after-free read in napi_gro_frags() in the Linux kernel",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue is rated as having Moderate impact because it appears to be limited to only to a crash.",
"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-2020-10720",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10720"
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"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a4270d6795b0580287453ea55974d948393e66ef",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a4270d6795b0580287453ea55974d948393e66ef"
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"text": "An out-of-bounds write flaw was found in the Linux kernel. An empty nodelist in mempolicy.c is mishandled durig mount option parsing leading to a stack-based out-of-bounds write. The highest threat from this vulnerability is to system availability.",
"title": "Vulnerability description"
},
{
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"text": "kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c",
"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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"privilegesRequired": "HIGH",
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"title": "kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c"
},
{
"cve": "CVE-2020-12888",
"cwe": {
"id": "CWE-248",
"name": "Uncaught Exception"
},
"discovery_date": "2020-04-23T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1836244"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel, where it allows userspace processes, for example, a guest VM, to directly access h/w devices via its VFIO driver modules. The VFIO modules allow users to enable or disable access to the devices\u0027 MMIO memory address spaces. If a user attempts to access the read/write devices\u0027 MMIO address space when it is disabled, some h/w devices issue an interrupt to the CPU to indicate a fatal error condition, crashing the system. This flaw allows a guest user or process to crash the host system resulting in a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.\nThis issue affects the versions of the kernel package as shipped with Red Hat Enterprise Linux 7 and 8. Future kernel updates for Red Hat Enterprise Linux 7 and 8 may address this issue.",
"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-2020-12888"
},
{
"category": "external",
"summary": "RHBZ#1836244",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1836244"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-12888",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-12888"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-12888",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12888"
}
],
"release_date": "2020-05-14T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"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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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
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}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario"
}
]
}
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