Vulnerability-Lookup

alsa-2021:4191

Vulnerability from osv_almalinux

Published

2021-11-09 08:35

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.

Security Fix(es):

QEMU: net: e1000e: use-after-free while sending packets (CVE-2020-15859)
QEMU: slirp: invalid pointer initialization may lead to information disclosure (bootp) (CVE-2021-3592)
QEMU: slirp: invalid pointer initialization may lead to information disclosure (udp6) (CVE-2021-3593)
QEMU: slirp: invalid pointer initialization may lead to information disclosure (udp) (CVE-2021-3594)
QEMU: slirp: invalid pointer initialization may lead to information disclosure (tftp) (CVE-2021-3595)
libvirt: Insecure sVirt label generation (CVE-2021-3631)
libvirt: Improper locking on ACL failure in virStoragePoolLookupByTargetPath API (CVE-2021-3667)

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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{
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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\nSecurity Fix(es):\n\n* QEMU: net: e1000e: use-after-free while sending packets (CVE-2020-15859)\n\n* QEMU: slirp: invalid pointer initialization may lead to information disclosure (bootp) (CVE-2021-3592)\n\n* QEMU: slirp: invalid pointer initialization may lead to information disclosure (udp6) (CVE-2021-3593)\n\n* QEMU: slirp: invalid pointer initialization may lead to information disclosure (udp) (CVE-2021-3594)\n\n* QEMU: slirp: invalid pointer initialization may lead to information disclosure (tftp) (CVE-2021-3595)\n\n* libvirt: Insecure sVirt label generation (CVE-2021-3631)\n\n* libvirt: Improper locking on ACL failure in virStoragePoolLookupByTargetPath API (CVE-2021-3667)\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-2021:4191",
  "modified": "2021-12-23T15:15:26Z",
  "published": "2021-11-09T08:35:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/8/ALSA-2021-4191.html"
    },
    {
      "type": "REPORT",
      "url": "https://vulners.com/cve/CVE-2020-15859"
    },
    {
      "type": "REPORT",
      "url": "https://vulners.com/cve/CVE-2021-3592"
    },
    {
      "type": "REPORT",
      "url": "https://vulners.com/cve/CVE-2021-3593"
    },
    {
      "type": "REPORT",
      "url": "https://vulners.com/cve/CVE-2021-3594"
    },
    {
      "type": "REPORT",
      "url": "https://vulners.com/cve/CVE-2021-3595"
    },
    {
      "type": "REPORT",
      "url": "https://vulners.com/cve/CVE-2021-3631"
    },
    {
      "type": "REPORT",
      "url": "https://vulners.com/cve/CVE-2021-3667"
    }
  ],
  "related": [
    "CVE-2020-15859",
    "CVE-2021-3592",
    "CVE-2021-3593",
    "CVE-2021-3594",
    "CVE-2021-3595",
    "CVE-2021-3631",
    "CVE-2021-3667"
  ],
  "summary": "Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update"
}

CVE-2021-3595 (GCVE-0-2021-3595)

Vulnerability from cvelistv5 – Published: 2021-06-15 00:00 – Updated: 2024-08-03 17:01

Summary

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.

Severity ?

No CVSS data available.

CWE

CWE-824

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=1970489
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://security.gentoo.org/glsa/202107-44	vendor-advisory
	https://security.netapp.com/advisory/ntap-2021080…
	https://lists.debian.org/debian-lts-announce/2021…	mailing-list
	https://lists.debian.org/debian-lts-announce/2023…	mailing-list

Impacted products

	Vendor	Product	Version
	n/a	QEMU	Affected: libslirp 4.6.0

Show details on NVD website

JSON

To clipboard

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CVE-2021-3592 (GCVE-0-2021-3592)

Vulnerability from cvelistv5 – Published: 2021-06-15 00:00 – Updated: 2024-08-03 17:01

Summary

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the bootp_input() function and could occur while processing a udp packet that is smaller than the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of uninitialized heap memory from the host. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.

Severity ?

No CVSS data available.

CWE

CWE-824

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=1970484
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://security.gentoo.org/glsa/202107-44	vendor-advisory
	https://security.netapp.com/advisory/ntap-2021080…
	https://lists.debian.org/debian-lts-announce/2021…	mailing-list
	https://lists.debian.org/debian-lts-announce/2021…	mailing-list
	https://lists.debian.org/debian-lts-announce/2023…	mailing-list

Impacted products

	Vendor	Product	Version
	n/a	QEMU	Affected: libslirp 4.6.0

Show details on NVD website

JSON

To clipboard

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CVE-2021-3631 (GCVE-0-2021-3631)

Vulnerability from cvelistv5 – Published: 2022-03-02 00:00 – Updated: 2024-11-19 19:33

Summary

A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out of sVirt confinement. The highest threat from this vulnerability is to confidentiality and integrity.

Severity ?

No CVSS data available.

CWE

CWE-732

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=1977726
	https://gitlab.com/libvirt/libvirt/-/issues/153
	https://gitlab.com/libvirt/libvirt/-/commit/15073…
	https://access.redhat.com/errata/RHSA-2021:3631
	https://security.netapp.com/advisory/ntap-2022033…
	https://security.gentoo.org/glsa/202210-06	vendor-advisory
	https://lists.debian.org/debian-lts-announce/2024…	mailing-list

Impacted products

	Vendor	Product	Version
	n/a	libvirt	Affected: Fixed-In - libvirt v7.5.0

Show details on NVD website

JSON

To clipboard

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CVE-2021-3593 (GCVE-0-2021-3593)

Vulnerability from cvelistv5 – Published: 2021-06-15 00:00 – Updated: 2024-08-03 17:01

Summary

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp6_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.

Severity ?

No CVSS data available.

CWE

CWE-824

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=1970487
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://security.gentoo.org/glsa/202107-44	vendor-advisory
	https://security.netapp.com/advisory/ntap-2021080…
	https://lists.debian.org/debian-lts-announce/2022…	mailing-list
	https://lists.debian.org/debian-lts-announce/2023…	mailing-list

Impacted products

	Vendor	Product	Version
	n/a	QEMU	Affected: libslirp 4.6.0

Show details on NVD website

JSON

To clipboard

{
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CVE-2021-3667 (GCVE-0-2021-3667)

Vulnerability from cvelistv5 – Published: 2022-03-02 00:00 – Updated: 2025-02-13 16:28

Summary

An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt. It occurs in the storagePoolLookupByTargetPath function where a locked virStoragePoolObj object is not properly released on ACL permission failure. Clients connecting to the read-write socket with limited ACL permissions could use this flaw to acquire the lock and prevent other users from accessing storage pool/volume APIs, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability.

Severity ?

No CVSS data available.

CWE

CWE-667 - (improper Locking)

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=1986094
	https://libvirt.org/git/?p=libvirt.git%3Ba=commit…
	https://gitlab.com/libvirt/libvirt/-/commit/447f6…
	https://security.netapp.com/advisory/ntap-2022033…
	https://security.gentoo.org/glsa/202210-06	vendor-advisory
	https://lists.debian.org/debian-lts-announce/2024…

Impacted products

	Vendor	Product	Version
	n/a	libvirt	Affected: Fixedin - libvert v7.6.0-rc1 and above

Show details on NVD website

JSON

To clipboard

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CVE-2021-3594 (GCVE-0-2021-3594)

Vulnerability from cvelistv5 – Published: 2021-06-15 00:00 – Updated: 2024-08-03 17:01

Summary

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.

Severity ?

No CVSS data available.

CWE

CWE-824

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=1970491
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://security.gentoo.org/glsa/202107-44	vendor-advisory
	https://security.netapp.com/advisory/ntap-2021080…
	https://lists.debian.org/debian-lts-announce/2021…	mailing-list
	https://lists.debian.org/debian-lts-announce/2023…	mailing-list

Impacted products

	Vendor	Product	Version
	n/a	QEMU	Affected: libslirp 4.6.0

Show details on NVD website

JSON

To clipboard

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CVE-2020-15859 (GCVE-0-2020-15859)

Vulnerability from cvelistv5 – Published: 2020-07-21 15:25 – Updated: 2024-08-04 13:30

Summary

QEMU 4.2.0 has a use-after-free in hw/net/e1000e_core.c because a guest OS user can trigger an e1000e packet with the data's address set to the e1000e's MMIO address.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://bugs.launchpad.net/qemu/+bug/1886362	x_refsource_MISC
	https://lists.gnu.org/archive/html/qemu-devel/202…	x_refsource_MISC
	https://www.openwall.com/lists/oss-security/2020/…	mailing-listx_refsource_MLIST
	https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
	https://security.gentoo.org/glsa/202208-27	vendor-advisoryx_refsource_GENTOO
	https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

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Tags

Taxonomy of the tags.

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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.

Detection rules are retrieved from Rulezet.

Action not permitted

alsa-2021:4191

Vulnerability from osv_almalinux

CVE-2021-3595 (GCVE-0-2021-3595)

CVE-2021-3592 (GCVE-0-2021-3592)

CVE-2021-3631 (GCVE-0-2021-3631)

CVE-2021-3593 (GCVE-0-2021-3593)

CVE-2021-3667 (GCVE-0-2021-3667)

CVE-2021-3594 (GCVE-0-2021-3594)

CVE-2020-15859 (GCVE-0-2020-15859)

Tags

Sightings

Nomenclature