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CVE-2020-14339 (GCVE-0-2020-14339)
Vulnerability from cvelistv5 – Published: 2020-12-03 00:00 – Updated: 2024-08-04 12:39
VLAI?
EPSS
Summary
A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Severity ?
No CVSS data available.
CWE
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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GHSA-C772-G5J9-W9W8
Vulnerability from github – Published: 2022-05-24 17:35 – Updated: 2022-10-16 19:00
VLAI?
Details
A flaw was found in libvirt, where it leaked a file descriptor for /dev/mapper/control into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Severity ?
8.8 (High)
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CNVD-2020-47042
Vulnerability from cnvd - Published: 2020-08-20
VLAI Severity ?
Title
Red Hat libvirt权限提升漏洞（CNVD-2020-47042）
Description
Red Hat libvirt是美国红帽（Red Hat）公司的一个用于实现Linux虚拟化功能的Linux API，它支持各种Hypervisor，包括Xen和KVM，以及QEMU和用于其他操作系统的一些虚拟产品。
Red Hat libvirt中存在权限提升漏洞，攻击者可利用该漏洞绕过限制，提升权限。
Severity
中
Patch Name
Red Hat libvirt权限提升漏洞的补丁
Patch Description
Red Hat libvirt是美国红帽（Red Hat）公司的一个用于实现Linux虚拟化功能的Linux API，它支持各种Hypervisor，包括Xen和KVM，以及QEMU和用于其他操作系统的一些虚拟产品。
Red Hat libvirt中存在权限提升漏洞，攻击者可利用该漏洞绕过限制，提升权限。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。
Formal description
厂商已发布了漏洞修复程序，请及时关注更新： https://libvirt.org/git/?p=libvirt.git;a=commit;h=22494556542c676d1b9e7f1c1f2ea13ac17e1e3e
Reference
https://vigilance.fr/vulnerability/libvirt-privilege-escalation-via-dev-mapper-control-33077
Impacted products
| Name | Red Hat libvirt |
|---|
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CVE-2020-14339
Vulnerability from osv_almalinux
Published
2020-11-03 12:26
Modified
2021-12-23 15:15
Summary
Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update
Details
Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems.
The following packages have been upgraded to a later upstream version: hivex (1.3.18), libguestfs (1.40.2), libguestfs-winsupport (8.2), libvirt (6.0.0), libvirt-dbus (1.3.0), libvirt-python (6.0.0), nbdkit (1.16.2), perl-Sys-Virt (6.0.0), qemu-kvm (4.2.0), seabios (1.13.0), SLOF (20191022). (BZ#1810193, BZ#1844296)
Security Fix(es):
-
libvirt: leak of /dev/mapper/control into QEMU guests (CVE-2020-14339)
-
QEMU: Slirp: use-after-free during packet reassembly (CVE-2019-15890)
-
libvirt: Potential DoS by holding a monitor job while querying QEMU guest-agent (CVE-2019-20485)
-
QEMU: slirp: use-after-free in ip_reass() function in ip_input.c (CVE-2020-1983)
-
libvirt: Potential denial of service via active pool without target path (CVE-2020-10703)
-
libvirt: leak of sensitive cookie information via dumpxml (CVE-2020-14301)
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 AlmaLinux Release Notes linked from the References section.
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"details": "Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems.\n\nThe following packages have been upgraded to a later upstream version: hivex (1.3.18), libguestfs (1.40.2), libguestfs-winsupport (8.2), libvirt (6.0.0), libvirt-dbus (1.3.0), libvirt-python (6.0.0), nbdkit (1.16.2), perl-Sys-Virt (6.0.0), qemu-kvm (4.2.0), seabios (1.13.0), SLOF (20191022). (BZ#1810193, BZ#1844296)\n\nSecurity Fix(es):\n\n* libvirt: leak of /dev/mapper/control into QEMU guests (CVE-2020-14339)\n\n* QEMU: Slirp: use-after-free during packet reassembly (CVE-2019-15890)\n\n* libvirt: Potential DoS by holding a monitor job while querying QEMU guest-agent (CVE-2019-20485)\n\n* QEMU: slirp: use-after-free in ip_reass() function in ip_input.c (CVE-2020-1983)\n\n* libvirt: Potential denial of service via active pool without target path (CVE-2020-10703)\n\n* libvirt: leak of sensitive cookie information via dumpxml (CVE-2020-14301)\n\nFor 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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.",
"id": "ALSA-2020:4676",
"modified": "2021-12-23T15:15:25Z",
"published": "2020-11-03T12:26:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/8/ALSA-2020-4676.html"
},
{
"type": "REPORT",
"url": "https://vulners.com/cve/CVE-2019-15890"
},
{
"type": "REPORT",
"url": "https://vulners.com/cve/CVE-2019-20485"
},
{
"type": "REPORT",
"url": "https://vulners.com/cve/CVE-2020-10703"
},
{
"type": "REPORT",
"url": "https://vulners.com/cve/CVE-2020-14301"
},
{
"type": "REPORT",
"url": "https://vulners.com/cve/CVE-2020-14339"
},
{
"type": "REPORT",
"url": "https://vulners.com/cve/CVE-2020-1983"
}
],
"related": [
"CVE-2020-14339",
"CVE-2019-15890",
"CVE-2019-20485",
"CVE-2020-1983",
"CVE-2020-10703",
"CVE-2020-14301"
],
"summary": "Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update"
}
FKIE_CVE-2020-14339
Vulnerability from fkie_nvd - Published: 2020-12-03 17:15 - Updated: 2024-11-21 05:03
Severity ?
Summary
A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
References
| URL | Tags | ||
|---|---|---|---|
| secalert@redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=1860069 | Issue Tracking, Patch, Third Party Advisory | |
| secalert@redhat.com | https://security.gentoo.org/glsa/202101-22 | Third Party Advisory | |
| secalert@redhat.com | https://security.gentoo.org/glsa/202210-06 | Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.redhat.com/show_bug.cgi?id=1860069 | Issue Tracking, Patch, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://security.gentoo.org/glsa/202101-22 | Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://security.gentoo.org/glsa/202210-06 | Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| redhat | libvirt | * | |
| redhat | enterprise_linux | 8.0 |
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GSD-2020-14339
Vulnerability from gsd - Updated: 2023-12-13 01:22Details
A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Aliases
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"id": "GSD-2020-14339",
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"https://access.redhat.com/errata/RHSA-2020:4676",
"https://access.redhat.com/errata/RHSA-2020:3586",
"https://security.archlinux.org/CVE-2020-14339",
"https://linux.oracle.com/cve/CVE-2020-14339.html"
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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