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CVE-2021-38575
Vulnerability from cvelistv5
Published
2021-12-01 00:00
Modified
2024-08-04 01:44
Severity ?
EPSS score ?
Summary
NetworkPkg/IScsiDxe has remotely exploitable buffer overflows.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| infosec@edk2.groups.io | https://bugzilla.tianocore.org/show_bug.cgi?id=3356 | Exploit, Issue Tracking, Vendor Advisory | |
| infosec@edk2.groups.io | https://www.insyde.com/security-pledge/SA-2023025 | Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.tianocore.org/show_bug.cgi?id=3356 | Exploit, Issue Tracking, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.insyde.com/security-pledge/SA-2023025 | Third Party Advisory |
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rhsa-2021_3066
Vulnerability from csaf_redhat
Published
2021-08-10 16:32
Modified
2024-11-22 17:14
Summary
Red Hat Security Advisory: edk2 security update
Notes
Topic
An update for edk2 is now available for Red Hat Enterprise Linux 8.
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
EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM.
Security Fix(es):
* edk2: remote buffer overflow in IScsiHexToBin function in NetworkPkg/IScsiDxe (BZ#1956284)
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.
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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rhsa-2021_3369
Vulnerability from csaf_redhat
Published
2021-08-31 09:22
Modified
2024-11-22 17:14
Summary
Red Hat Security Advisory: edk2 security update
Notes
Topic
An update for edk2 is now available for Red Hat Enterprise Linux 8.2 Extended Update Support.
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
EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM.
Security Fix(es):
* edk2: remote buffer overflow in IScsiHexToBin function in NetworkPkg/IScsiDxe (BZ#1956284)
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.
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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rhsa-2021_3172
Vulnerability from csaf_redhat
Published
2021-08-17 08:32
Modified
2024-11-22 17:14
Summary
Red Hat Security Advisory: edk2 security update
Notes
Topic
An update for edk2 is now available for Red Hat Enterprise Linux 8.1 Extended Update Support.
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
EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM.
Security Fix(es):
* edk2: remote buffer overflow in IScsiHexToBin function in NetworkPkg/IScsiDxe (BZ#1956284)
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.
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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"AppStream-8.1.0.Z.EUS:edk2-ovmf-0:20190308git89910a39dcfd-6.el8_1.1.noarch"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:3172"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
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]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "edk2: remote buffer overflow in IScsiHexToBin function in NetworkPkg/IScsiDxe"
}
]
}
rhsa-2021_3235
Vulnerability from csaf_redhat
Published
2021-08-19 15:51
Modified
2024-11-22 17:14
Summary
Red Hat Security Advisory: Red Hat Virtualization Host security and bug fix update [ovirt-4.4.7]
Notes
Topic
An update for imgbased, redhat-release-virtualization-host, and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 8.
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 redhat-virtualization-host packages provide the Red Hat Virtualization Host.
These packages include redhat-release-virtualization-host, ovirt-node, and
rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a
special build of Red Hat Enterprise Linux with only the packages required to
host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.
Security Fix(es):
* edk2: remote buffer overflow in IScsiHexToBin function in NetworkPkg/IScsiDxe ()
* kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)
* kernel: race condition in net/can/bcm.c leads to local privilege escalation (CVE-2021-3609)
* sssd: shell command injection in sssctl (CVE-2021-3621)
* kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Bug Fix(es):
* Rebase package(s) to version: 1.2.23
Highlights, important fixes, or notable enhancements:
* imgbase should not copy the selinux binary policy file (BZ# 1979624) (BZ#1989397)
* RHV-H has been rebased on Red Hat Enterprise Linux 8.4 Batch #2. (BZ#1975177)
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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{
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"title": "Vulnerability description"
},
{
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"text": "kernel: race condition in net/can/bcm.c leads to local privilege escalation",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat Product Security is aware of this issue. Updates will be released as they become available.\n\nFor Red Hat Virtualization, this flaw is rated Moderate as CAN is not used on host nodes.",
"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://nvd.nist.gov/vuln/detail/CVE-2021-3609"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2021/06/19/1",
"url": "https://www.openwall.com/lists/oss-security/2021/06/19/1"
}
],
"release_date": "2021-06-19T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2021-08-19T15:51:36+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/2974891",
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{
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"names": [
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],
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"title": "Statement"
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{
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"title": "Vulnerability description"
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{
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"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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"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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"version": "3.1"
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},
{
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"id": "CWE-787",
"name": "Out-of-bounds Write"
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"text": "A flaw was discovered in processing setsockopt IPT_SO_SET_REPLACE (or IP6T_SO_SET_REPLACE) for 32 bit processes on 64 bit systems. This flaw will allow local user to gain privileges or cause a DoS through user name space. This action is usually restricted to root-privileged users but can also be leveraged if the kernel is compiled with CONFIG_USER_NS and CONFIG_NET_NS and the user is granted elevated privileges.",
"title": "Vulnerability description"
},
{
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"text": "kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "For the Red Hat Enterprise Linux 7 only privileged user can trigger this bug.\nFor the Red Hat Enterprise Linux 8 regular user can trigger it, and the result is corruption of 4 bytes of memory.",
"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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"details": "The mitigation for the Red Hat Enterprise Linux 8 is to disable for unprivileged user possibilities of running unshare(CLONE_NEWUSER) or unshare(CLONE_NEWNET) that could be done with the next command:\necho 0 \u003e /proc/sys/user/max_user_namespaces\n\nFor making this change in configuration permanent.\nNote: User namespaces are used primarily for Linux containers. If containers are in use, this requirement is not applicable.\nConfigure RHEL 8 to disable the use of user namespaces by adding the following line to a file in the \"/etc/sysctl.d/\" directory:\n\nuser.max_user_namespaces = 0\n\nThe system configuration files need to be reloaded for the changes to take effect. To reload the contents of the files, run the following command:\n\n$ sudo sysctl --system\n\n\nThe other mitigation for containers, if without disabling user namespaces, is blocking the pertinent syscalls in a seccomp policy file. For more information about seccomp, please read: https://www.openshift.com/blog/seccomp-for-fun-and-profit",
"product_ids": [
"8Base-RHV-Hypervisor-4:redhat-virtualization-host-0:4.4.7-20210804.0.el8_4.src",
"8Base-RHV-Hypervisor-4:redhat-virtualization-host-image-update-0:4.4.7-20210804.0.el8_4.x86_64",
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]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"8Base-RHV-Hypervisor-4:redhat-virtualization-host-0:4.4.7-20210804.0.el8_4.src",
"8Base-RHV-Hypervisor-4:redhat-virtualization-host-image-update-0:4.4.7-20210804.0.el8_4.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c"
},
{
"acknowledgments": [
{
"names": [
"Laszlo Ersek"
],
"organization": "Red Hat",
"summary": "This issue was discovered by Red Hat."
}
],
"cve": "CVE-2021-38575",
"cwe": {
"id": "CWE-119",
"name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
},
"discovery_date": "2021-05-03T00:00:00+00:00",
"flags": [
{
"label": "vulnerable_code_not_present",
"product_ids": [
"8Base-RHV-HypervisorBuild-4:imgbased-0:1.2.23-1.el8ev.noarch",
"8Base-RHV-HypervisorBuild-4:imgbased-0:1.2.23-1.el8ev.src",
"8Base-RHV-HypervisorBuild-4:python3-imgbased-0:1.2.23-1.el8ev.noarch",
"8Base-RHV-HypervisorBuild-4:redhat-release-virtualization-host-0:4.4.7-4.el8ev.src",
"8Base-RHV-HypervisorBuild-4:redhat-release-virtualization-host-0:4.4.7-4.el8ev.x86_64",
"8Base-RHV-HypervisorBuild-4:redhat-virtualization-host-image-update-placeholder-0:4.4.7-4.el8ev.noarch"
]
}
],
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1956284"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in edk2. Missing checks in the IScsiHexToBin function in NetworkPkg/IScsiDxe lead to a buffer overflow allowing a remote attacker, who can inject himself in the communication between edk2 and the iSCSI target, to write arbitrary data to any address in the edk2 firmware and potentially execute code. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "edk2: remote buffer overflow in IScsiHexToBin function in NetworkPkg/IScsiDxe",
"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": [
"8Base-RHV-Hypervisor-4:redhat-virtualization-host-0:4.4.7-20210804.0.el8_4.src",
"8Base-RHV-Hypervisor-4:redhat-virtualization-host-image-update-0:4.4.7-20210804.0.el8_4.x86_64"
],
"known_not_affected": [
"8Base-RHV-HypervisorBuild-4:imgbased-0:1.2.23-1.el8ev.noarch",
"8Base-RHV-HypervisorBuild-4:imgbased-0:1.2.23-1.el8ev.src",
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"8Base-RHV-HypervisorBuild-4:redhat-release-virtualization-host-0:4.4.7-4.el8ev.src",
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-38575"
},
{
"category": "external",
"summary": "RHBZ#1956284",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1956284"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-38575",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-38575"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-38575",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38575"
}
],
"release_date": "2021-06-08T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2021-08-19T15:51:36+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/2974891",
"product_ids": [
"8Base-RHV-Hypervisor-4:redhat-virtualization-host-0:4.4.7-20210804.0.el8_4.src",
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:3235"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
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"8Base-RHV-Hypervisor-4:redhat-virtualization-host-image-update-0:4.4.7-20210804.0.el8_4.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "edk2: remote buffer overflow in IScsiHexToBin function in NetworkPkg/IScsiDxe"
}
]
}
gsd-2021-38575
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
NetworkPkg/IScsiDxe has remotely exploitable buffer overflows.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-38575",
"description": "NetworkPkg/IScsiDxe has remotely exploitable buffer overflows.",
"id": "GSD-2021-38575",
"references": [
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"https://access.redhat.com/errata/RHSA-2021:3369",
"https://access.redhat.com/errata/RHSA-2021:3235",
"https://access.redhat.com/errata/RHSA-2021:3172",
"https://access.redhat.com/errata/RHSA-2021:3066",
"https://ubuntu.com/security/CVE-2021-38575",
"https://security.archlinux.org/CVE-2021-38575",
"https://linux.oracle.com/cve/CVE-2021-38575.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-38575"
],
"details": "NetworkPkg/IScsiDxe has remotely exploitable buffer overflows.",
"id": "GSD-2021-38575",
"modified": "2023-12-13T01:23:17.904011Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"affects": {
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"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "EDK II",
"version": {
"version_data": [
{
"version_affected": "\u003c=",
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}
]
}
}
]
},
"vendor_name": "TianoCore"
}
]
}
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"value": "A case of CWE-124, CWE-680, and CWE-252 is occurring in NetworkPkg/IScsiDxe."
}
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}
]
},
"references": {
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{
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"url": "https://bugzilla.tianocore.org/show_bug.cgi?id=3356"
},
{
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]
}
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
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"cpe_name": [],
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}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
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"cpe_name": [],
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},
{
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{
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{
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{
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{
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},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
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"exploitabilityScore": 8.6,
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"severity": "MEDIUM",
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"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.2,
"impactScore": 5.9
}
},
"lastModifiedDate": "2023-08-02T17:23Z",
"publishedDate": "2021-12-01T18:15Z"
}
}
}
ghsa-7cjm-mv56-4mg4
Vulnerability from github
Published
2021-12-02 00:00
Modified
2023-07-23 03:30
Severity ?
Details
NetworkPkg/IScsiDxe has remotely exploitable buffer overflows.
{
"affected": [],
"aliases": [
"CVE-2021-38575"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-124"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-01T18:15:00Z",
"severity": "CRITICAL"
},
"details": "NetworkPkg/IScsiDxe has remotely exploitable buffer overflows.",
"id": "GHSA-7cjm-mv56-4mg4",
"modified": "2023-07-23T03:30:40Z",
"published": "2021-12-02T00:00:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38575"
},
{
"type": "WEB",
"url": "https://bugzilla.tianocore.org/show_bug.cgi?id=3356"
},
{
"type": "WEB",
"url": "https://www.insyde.com/security-pledge/SA-2023025"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Loading…
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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.