Vulnerability-Lookup

alsa-2021:2168

Vulnerability from osv_almalinux

Published

2021-06-01 09:02

Modified

2021-08-11 08:54

Summary

Important: kernel security and bug fix update

Details

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

kernel: userspace applications can misuse the KVM API to cause a write of 16 bytes at an offset up to 32 GB from vcpu->run (CVE-2021-3501)
kernel: nitro_enclaves stale file descriptors on failed usercopy (CVE-2021-3543)

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):

OVS mistakenly using local IP as tun_dst for VXLAN packets (?) (BZ#1944667)
Selinux: The task calling security_set_bools() deadlocks with itself when it later calls selinux_audit_rule_match(). (BZ#1945123)
[mlx5] tc flower mpls match options does not work (BZ#1952061)
mlx5: missing patches for ct.rel (BZ#1952062)
CT HWOL: with OVN/OVS, intermittently, load balancer hairpin TCP packets get dropped for seconds in a row (BZ#1952065)
[Lenovo 8.3 bug] Blackscreen after clicking on "Settings" icon from top-right corner. (BZ#1952900)
AlmaLinux 8.x missing uio upstream fix. (BZ#1952952)
Turbostat doesn't show any measured data on AMD Milan (BZ#1952987)
P620 no sound from front headset jack (BZ#1954545)
AlmaLinux kernel 8.2 and higher are affected by data corruption bug in raid1 arrays using bitmaps. (BZ#1955188)
[net/sched] connection failed with DNAT + SNAT by tc action ct (BZ#1956458)

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "kernel-tools-libs-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-305.3.1.el8_4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: userspace applications can misuse the KVM API to cause a write of 16 bytes at an offset up to 32 GB from vcpu-\u003erun (CVE-2021-3501)\n\n* kernel: nitro_enclaves stale file descriptors on failed usercopy (CVE-2021-3543)\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\nBug Fix(es):\n\n* OVS mistakenly using local IP as tun_dst for VXLAN packets (?) (BZ#1944667)\n\n* Selinux: The task calling security_set_bools() deadlocks with itself when it later calls  selinux_audit_rule_match(). (BZ#1945123)\n\n* [mlx5] tc flower mpls match options does not work (BZ#1952061)\n\n* mlx5: missing patches for ct.rel (BZ#1952062)\n\n* CT HWOL: with OVN/OVS, intermittently, load balancer hairpin TCP packets get dropped for seconds in a row (BZ#1952065)\n\n* [Lenovo 8.3 bug] Blackscreen after clicking on \"Settings\" icon from top-right corner. (BZ#1952900)\n\n* AlmaLinux 8.x missing uio upstream fix. (BZ#1952952)\n\n* Turbostat doesn\u0027t show any measured data on AMD Milan (BZ#1952987)\n\n* P620 no sound from front headset jack (BZ#1954545)\n\n* AlmaLinux kernel 8.2 and higher are affected by data corruption bug in raid1 arrays using bitmaps. (BZ#1955188)\n\n* [net/sched] connection failed with DNAT + SNAT by tc action ct (BZ#1956458)",
  "id": "ALSA-2021:2168",
  "modified": "2021-08-11T08:54:00Z",
  "published": "2021-06-01T09:02:01Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://vulners.com/cve/CVE-2021-3501"
    },
    {
      "type": "REPORT",
      "url": "https://vulners.com/cve/CVE-2021-3543"
    }
  ],
  "related": [
    "CVE-2021-3501",
    "CVE-2021-3543"
  ],
  "summary": "Important: kernel security and bug fix update"
}

CVE-2021-3501 (GCVE-0-2021-3501)

Vulnerability from cvelistv5 – Published: 2021-05-05 22:31 – Updated: 2024-08-03 16:53

Summary

A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

Severity ?

No CVSS data available.

CWE

CWE-787

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=1950136	x_refsource_MISC
	https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-2021061…	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	kernel	Affected: Linux kernel 5.12

Show details on NVD website

JSON

To clipboard

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CVE-2021-3543 (GCVE-0-2021-3543)

Vulnerability from cvelistv5 – Published: 2021-06-01 13:20 – Updated: 2024-08-03 17:01

Summary

A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to crash the system or escalate their privileges on the system.

Severity ?

No CVSS data available.

CWE

CWE-416 - (CWE-416|CWE-476)

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=1953022	x_refsource_MISC
	https://lore.kernel.org/lkml/20210429165941.27020…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	kernel	Affected: kernel 4.18.0

Show details on NVD website

JSON

To clipboard

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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-2021:2168

Vulnerability from osv_almalinux

CVE-2021-3501 (GCVE-0-2021-3501)

CVE-2021-3543 (GCVE-0-2021-3543)

Tags

Sightings

Nomenclature