Vulnerability-Lookup

alsa-2022:5821

Vulnerability from osv_almalinux

Published

2022-08-02 00:00

Modified

2022-11-24 19:17

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. Security Fix(es): * QEMU: QXL: integer overflow in cursor_alloc() can lead to heap buffer overflow (CVE-2021-4206) * QEMU: QXL: double fetch in qxl_cursor() can lead to heap buffer overflow (CVE-2021-4207) * QEMU: virtio-net: map leaking on error during receive (CVE-2022-26353) * QEMU: vhost-vsock: missing virtqueue detach on error can lead to memory leak (CVE-2022-26354) 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): * AlmaLinux 9.0 guest with vsock device migration failed from AlmaLinux 9.0 > AlmaLinux 8.6 (BZ#2071103) * Fail to rebuild the reference count tables of qcow2 image on host block devices (e.g. LVs) (BZ#2072242) * Remove upstream-only devices from the qemu-kvm binary (BZ#2077928) * When doing a cpu-baseline between skylake and cascadelake, cascadelake is selected as baseline. (BZ#2084030) * Virt-v2v can't convert rhel8.6 guest from VMware on rhel8.6 (BZ#2093415) Enhancement(s): * Allow memory prealloc from multiple threads (BZ#2075569)

References

URL

Type

	https://access.redhat.com/errata/RHSA-2022:5821	ADVISORY
	https://access.redhat.com/security/cve/CVE-2021-4206	REPORT
	https://access.redhat.com/security/cve/CVE-2021-4207	REPORT
	https://access.redhat.com/security/cve/CVE-2022-26353	REPORT
	https://access.redhat.com/security/cve/CVE-2022-26354	REPORT
	https://bugzilla.redhat.com/2036966	REPORT
	https://bugzilla.redhat.com/2036998	REPORT
	https://bugzilla.redhat.com/2063197	REPORT
	https://bugzilla.redhat.com/2063257	REPORT
	https://errata.almalinux.org/8/ALSA-2022-5821.html	ADVISORY

JSON

To clipboard

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        "name": "SLOF"
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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.\nSecurity Fix(es):\n* QEMU: QXL: integer overflow in cursor_alloc() can lead to heap buffer overflow (CVE-2021-4206)\n* QEMU: QXL: double fetch in qxl_cursor() can lead to heap buffer overflow (CVE-2021-4207)\n* QEMU: virtio-net: map leaking on error during receive (CVE-2022-26353)\n* QEMU: vhost-vsock: missing virtqueue detach on error can lead to memory leak (CVE-2022-26354)\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.\nBug Fix(es):\n* AlmaLinux 9.0 guest with vsock device migration failed from AlmaLinux 9.0 \u003e AlmaLinux 8.6 (BZ#2071103)\n* Fail to rebuild the reference count tables of qcow2 image on host block devices (e.g. LVs) (BZ#2072242)\n* Remove upstream-only devices from the qemu-kvm binary (BZ#2077928)\n* When doing a cpu-baseline between skylake and cascadelake, cascadelake is selected as baseline. (BZ#2084030)\n* Virt-v2v can\u0027t convert rhel8.6 guest from VMware on rhel8.6 (BZ#2093415)\nEnhancement(s):\n* Allow memory prealloc from multiple threads (BZ#2075569)",
  "id": "ALSA-2022:5821",
  "modified": "2022-11-24T19:17:28Z",
  "published": "2022-08-02T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2022:5821"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2021-4206"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2021-4207"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2022-26353"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2022-26354"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2036966"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2036998"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2063197"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2063257"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/8/ALSA-2022-5821.html"
    }
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    "CVE-2021-4206",
    "CVE-2021-4207",
    "CVE-2022-26353",
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  "summary": "Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update"
}

CVE-2022-26353 (GCVE-0-2022-26353)

Vulnerability from cvelistv5 – Published: 2022-03-16 14:02 – Updated: 2024-08-03 05:03

Summary

A flaw was found in the virtio-net device of QEMU. This flaw was inadvertently introduced with the fix for CVE-2021-3748, which forgot to unmap the cached virtqueue elements on error, leading to memory leakage and other unexpected results. Affected QEMU version: 6.2.0.

Severity ?

No CVSS data available.

CWE

CWE-772

Assigner

redhat

References

URL

Tags

	https://lists.nongnu.org/archive/html/qemu-devel/…	x_refsource_MISC
	https://gitlab.com/qemu-project/qemu/-/commit/abe…	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-2022042…	x_refsource_CONFIRM
	https://www.debian.org/security/2022/dsa-5133	vendor-advisoryx_refsource_DEBIAN
	https://security.gentoo.org/glsa/202208-27	vendor-advisoryx_refsource_GENTOO

Impacted products

	Vendor	Product	Version
	n/a	qemu-kvm	Affected: Affected QEMU version: 6.2.0

Show details on NVD website

JSON

To clipboard

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        "shortName": "redhat"
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CVE-2021-4207 (GCVE-0-2021-4207)

Vulnerability from cvelistv5 – Published: 2022-04-29 16:07 – Updated: 2025-03-21 18:03

Summary

A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values `cursor->header.width` and `cursor->header.height` can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.

Severity ?

No CVSS data available.

CWE

CWE-362 - >CWE-120

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=2036966	x_refsource_MISC
	https://starlabs.sg/advisories/21-4207/	x_refsource_MISC
	https://www.debian.org/security/2022/dsa-5133	vendor-advisoryx_refsource_DEBIAN
	https://security.gentoo.org/glsa/202208-27	vendor-advisoryx_refsource_GENTOO
	https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	QEMU	Affected: qemu-kvm 7.0.0

Show details on NVD website

JSON

To clipboard

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CVE-2021-4206 (GCVE-0-2021-4206)

Vulnerability from cvelistv5 – Published: 2022-04-29 16:19 – Updated: 2025-03-21 18:03

Summary

A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.

Severity ?

No CVSS data available.

CWE

CWE-190 - >CWE-131->CWE-120

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=2036998	x_refsource_MISC
	https://starlabs.sg/advisories/21-4206/	x_refsource_MISC
	https://www.debian.org/security/2022/dsa-5133	vendor-advisoryx_refsource_DEBIAN
	https://security.gentoo.org/glsa/202208-27	vendor-advisoryx_refsource_GENTOO
	https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	QEMU	Affected: qemu-kvm 7.0.0

Show details on NVD website

JSON

To clipboard

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CVE-2022-26354 (GCVE-0-2022-26354)

Vulnerability from cvelistv5 – Published: 2022-03-16 14:02 – Updated: 2024-08-03 05:03

Summary

A flaw was found in the vhost-vsock device of QEMU. In case of error, an invalid element was not detached from the virtqueue before freeing its memory, leading to memory leakage and other unexpected results. Affected QEMU versions <= 6.2.0.

Severity ?

No CVSS data available.

CWE

CWE-772

Assigner

redhat

References

URL

Tags

	https://gitlab.com/qemu-project/qemu/-/commit/8d1…	x_refsource_MISC
	https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST
	https://security.netapp.com/advisory/ntap-2022042…	x_refsource_CONFIRM
	https://www.debian.org/security/2022/dsa-5133	vendor-advisoryx_refsource_DEBIAN
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	https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	qemu-kvm	Affected: Affected QEMU versions <= 6.2.0

Show details on NVD website

JSON

To clipboard

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Tags

Taxonomy of the tags.

All sightings related to this event Export sightings related to this event

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.

Detection rules are retrieved from Rulezet.

Action not permitted

alsa-2022:5821

Vulnerability from osv_almalinux

CVE-2022-26353 (GCVE-0-2022-26353)

CVE-2021-4207 (GCVE-0-2021-4207)

CVE-2021-4206 (GCVE-0-2021-4206)

CVE-2022-26354 (GCVE-0-2022-26354)

Tags

Sightings

Nomenclature