Vulnerability-Lookup

alsa-2021:3548

Vulnerability from osv_almalinux

Published

2021-09-15 09:41

Modified

2023-09-15 13:41

Summary

Moderate: kernel security, bug fix, and enhancement update

Details

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

Security Fix(es):

kernel: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653)

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):

AlmaLinux8.4 Nightly[0308] - HST:STC950:Fleetwood: LPAR crashed during LPM: BUG at lib/locks.c:34! (using ibmvfc) (BZ#1969792)
AlmaLinux8.2 - s390/vtime: fix increased steal time accounting (BZ#1988386)
[FJ8.4 Bug]: Installation of AlmaLinux8.4 hang up on a Tatlow platform while loading intel_lpss_pci module. (BZ#1989560)
kernel panic in drm_fb_helper_dirty_work() caused by a race condition qxl driver (BZ#1992839)
[AlmaLinux8.4] TIOCGSERIAL ioctl fails on serial device (BZ#1993872)
AlmaLinux8.4 Nightly[0208] - kernel panic when executing test case for persistent device configuration (using DASD) (BZ#1995206)
Killing ceph daemon leaving an unhealthy ocs/ocp cluster (worker node/s NotReady) (BZ#1995862)
ceph: potential data corruption in cephfs write_begin codepath (BZ#1996680)
libceph: allow addrvecs with a single NONE/blank address (BZ#1996682)
[iavf] traffic stops after host sets vf trust on (BZ#1997536)
[ice][iavf] hit some call trace and system panic when create-remove-vfs in loop (BZ#1997538)
Missing backport of IMA boot aggregate calculation in almalinux 8.4 kernel (BZ#1997766)
XArray tests broken for single processor (BZ#1997997)
[AlmaLinux-8.4] mlock() end up returning -EINVAL instead of -ENOMEM in rewriting the upper address bits. (BZ#1997998)
Kernel panic at n_tty_set_termios+0x30 (BZ#1997999)
[ice]BUG: scheduling while atomic: ifenslave/270215/0x00000200 (BZ#2000129)
[ice]port lost connectivity after removing from bonding (BZ#2000130)

Enhancement(s):

[Mellanox 8.5 FEAT] mlx5: drivers update upto Linux v5.12 (BZ#1983681)

References

URL

Type

https://vulners.com/cve/CVE-2021-3653

REPORT

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "kernel-tools-libs-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-305.19.1.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: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653)\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* AlmaLinux8.4 Nightly[0308] - HST:STC950:Fleetwood: LPAR crashed during LPM: BUG at lib/locks.c:34!  (using ibmvfc) (BZ#1969792)\n\n* AlmaLinux8.2 - s390/vtime: fix increased steal time accounting (BZ#1988386)\n\n* [FJ8.4 Bug]: Installation of AlmaLinux8.4 hang up on a Tatlow platform while loading intel_lpss_pci module. (BZ#1989560)\n\n* kernel panic in drm_fb_helper_dirty_work() caused by a race condition qxl driver (BZ#1992839)\n\n* [AlmaLinux8.4] TIOCGSERIAL ioctl fails on serial device (BZ#1993872)\n\n* AlmaLinux8.4 Nightly[0208] - kernel panic when executing test case for persistent device configuration (using DASD) (BZ#1995206)\n\n* Killing ceph daemon leaving an unhealthy ocs/ocp cluster (worker node/s NotReady) (BZ#1995862)\n\n* ceph: potential data corruption in cephfs write_begin codepath (BZ#1996680)\n\n* libceph: allow addrvecs with a single NONE/blank address (BZ#1996682)\n\n* [iavf] traffic stops after host sets vf trust on (BZ#1997536)\n\n* [ice][iavf] hit some call trace and system panic when create-remove-vfs in loop (BZ#1997538)\n\n* Missing backport of IMA boot aggregate calculation in almalinux 8.4 kernel (BZ#1997766)\n\n* XArray tests broken for single processor (BZ#1997997)\n\n* [AlmaLinux-8.4] mlock() end up returning -EINVAL instead of -ENOMEM in rewriting the upper address bits. (BZ#1997998)\n\n* Kernel panic at n_tty_set_termios+0x30 (BZ#1997999)\n\n* [ice]BUG: scheduling while atomic: ifenslave/270215/0x00000200 (BZ#2000129)\n\n* [ice]port lost connectivity after removing from bonding (BZ#2000130)\n\nEnhancement(s):\n\n* [Mellanox 8.5 FEAT] mlx5: drivers update upto Linux v5.12 (BZ#1983681)",
  "id": "ALSA-2021:3548",
  "modified": "2023-09-15T13:41:48Z",
  "published": "2021-09-15T09:41:20Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://vulners.com/cve/CVE-2021-3653"
    }
  ],
  "related": [
    "CVE-2021-3653"
  ],
  "summary": "Moderate: kernel security, bug fix, and enhancement update"
}

CVE-2021-3653 (GCVE-0-2021-3653)

Vulnerability from cvelistv5 – Published: 2021-09-29 19:41 – Updated: 2024-08-03 17:01

Summary

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "int_ctl" field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7.

Severity

No CVSS data available.

CWE

CWE-862

Assigner

redhat redhat root

References

5 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1983686	x_refsource_MISC
https://www.openwall.com/lists/oss-security/2021/…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
http://packetstormsecurity.com/files/165477/Kerne…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	kernel	Affected: kernel 5.14-rc7

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.