Vulnerability-Lookup

RHSA-2021:2725

Vulnerability from csaf_opensuse - Published: 2021-07-20 00:00 - Updated: 2026-09-20 11:15

Summary

security update for kernel

Severity

Important

Notes

Title of the patch: security update for kernel

Description of the patch: This security update provides a functional equivalent of RHSA-2021:2725. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2021:2725.

Patchnames: RHSA-2021:2725

CVE-2019-20934

7.4 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Recommended 13 products

Product	Version	Remediation
Unresolved product id: SUSE Liberty Linux 7:bpftool-0:3.10.0-1160.36.2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:kernel-0:3.10.0-1160.36.2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:kernel-abi-whitelists-0:3.10.0-1160.36.2.el7.noarch	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:kernel-debug-0:3.10.0-1160.36.2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:kernel-debug-devel-0:3.10.0-1160.36.2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:kernel-devel-0:3.10.0-1160.36.2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:kernel-doc-0:3.10.0-1160.36.2.el7.noarch	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:kernel-headers-0:3.10.0-1160.36.2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:kernel-tools-0:3.10.0-1160.36.2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:kernel-tools-libs-0:3.10.0-1160.36.2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:kernel-tools-libs-devel-0:3.10.0-1160.36.2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:perf-0:3.10.0-1160.36.2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:python-perf-0:3.10.0-1160.36.2.el7.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2020-11668

7.1 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected products

Recommended 13 products, the same list as for CVE-2019-20934

Threats

Impact important

CVE-2021-33033

6.7 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

Recommended 13 products, the same list as for CVE-2019-20934

Threats

Impact moderate

CVE-2021-33034

7.7 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected products

Recommended 13 products, the same list as for CVE-2019-20934

Threats

Impact important

CVE-2021-33909

7.8 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Recommended 13 products, the same list as for CVE-2019-20934

Threats

Impact important

References

26 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/r…	self
https://www.suse.com/security/cve/CVE-2019-20934/	self
https://www.suse.com/security/cve/CVE-2020-11668/	self
https://www.suse.com/security/cve/CVE-2021-33033/	self
https://www.suse.com/security/cve/CVE-2021-33034/	self
https://www.suse.com/security/cve/CVE-2021-33909/	self
https://www.suse.com/security/cve/CVE-2019-20934	external
https://bugzilla.suse.com/1179663	external
https://bugzilla.suse.com/1179666	external
https://www.suse.com/security/cve/CVE-2020-11668	external
https://bugzilla.suse.com/1168952	external
https://bugzilla.suse.com/1173942	external
https://www.suse.com/security/cve/CVE-2021-33033	external
https://bugzilla.suse.com/1186109	external
https://bugzilla.suse.com/1186283	external
https://bugzilla.suse.com/1188876	external
https://www.suse.com/security/cve/CVE-2021-33034	external
https://bugzilla.suse.com/1186111	external
https://bugzilla.suse.com/1186285	external
https://www.suse.com/security/cve/CVE-2021-33909	external
https://bugzilla.suse.com/1188062	external
https://bugzilla.suse.com/1188063	external
https://bugzilla.suse.com/1188257	external
https://bugzilla.suse.com/1189302	external
https://bugzilla.suse.com/1190859	external

JSON

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        {
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          "text": "An issue was discovered in the Linux kernel before 5.2.6. On NUMA systems, the Linux fair scheduler has a use-after-free in show_numa_stats() because NUMA fault statistics are inappropriately freed, aka CID-16d51a590a8c.",
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          "text": "The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value.",
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CVE-2019-20934 (GCVE-0-2019-20934)

Vulnerability from cvelistv5 – Published: 2020-11-28 06:20 – Updated: 2024-08-05 03:00

Summary

An issue was discovered in the Linux kernel before 5.2.6. On NUMA systems, the Linux fair scheduler has a use-after-free in show_numa_stats() because NUMA fault statistics are inappropriately freed, aka CID-16d51a590a8c.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan…	x_refsource_MISC
https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_MISC
https://bugs.chromium.org/p/project-zero/issues/d…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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CVE-2020-11668 (GCVE-0-2020-11668)

Vulnerability from cvelistv5 – Published: 2020-04-09 20:13 – Updated: 2024-08-04 11:35

Summary

In the Linux kernel before 5.6.1, drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink camera USB driver) mishandles invalid descriptors, aka CID-a246b4d54770.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

12 references

URL	Tags
https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan…	x_refsource_MISC
https://github.com/torvalds/linux/commit/a246b4d5…	x_refsource_MISC
https://git.kernel.org/cgit/linux/kernel/git/torv…	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2020043…	x_refsource_CONFIRM
https://usn.ubuntu.com/4345-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4364-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4368-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4369-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2020/dsa-4698	vendor-advisoryx_refsource_DEBIAN

Show details on NVD website

JSON

To clipboard

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CVE-2021-33033 (GCVE-0-2021-33033)

Vulnerability from cvelistv5 – Published: 2021-05-14 22:57 – Updated: 2024-08-03 23:42

Summary

The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan…	x_refsource_MISC
https://syzkaller.appspot.com/bug?id=96e7d345748d…	x_refsource_MISC
https://sites.google.com/view/syzscope/kasan-use-…	x_refsource_MISC
https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_MISC
https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_MISC
https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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CVE-2021-33034 (GCVE-0-2021-33034)

Vulnerability from cvelistv5 – Published: 2021-05-14 22:57 – Updated: 2024-08-03 23:42

Summary

In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

7 references

URL	Tags
https://syzkaller.appspot.com/bug?id=2e1943a94647…	x_refsource_MISC
https://sites.google.com/view/syzscope/kasan-use-…	x_refsource_MISC
https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_MISC
https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan…	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

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CVE-2021-33909 (GCVE-0-2021-33909)

Vulnerability from cvelistv5 – Published: 2021-07-20 18:01 – Updated: 2024-08-04 00:05

Summary

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

20 references

URL	Tags
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2021/dsa-4941	vendor-advisoryx_refsource_DEBIAN
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
http://www.openwall.com/lists/oss-security/2021/07/22/7	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2021/0…	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2021/09/17/2	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2021/09/17/4	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2021/09/21/1	mailing-listx_refsource_MLIST
https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC
https://www.openwall.com/lists/oss-security/2021/…	x_refsource_MISC
https://github.com/torvalds/linux/commit/8cae8cd8…	x_refsource_CONFIRM
https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan…	x_refsource_CONFIRM
http://packetstormsecurity.com/files/163621/Sequo…	x_refsource_MISC
http://packetstormsecurity.com/files/163671/Kerne…	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2021081…	x_refsource_CONFIRM
http://packetstormsecurity.com/files/164155/Kerne…	x_refsource_MISC
http://packetstormsecurity.com/files/165477/Kerne…	x_refsource_MISC
https://psirt.global.sonicwall.com/vuln-detail/SN…	x_refsource_CONFIRM

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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-33909",
    "datePublished": "2021-07-20T18:01:34.000Z",
    "dateReserved": "2021-06-07T00:00:00.000Z",
    "dateUpdated": "2024-08-04T00:05:52.143Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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.

Action not permitted

RHSA-2021:2725

CVE-2019-20934 (GCVE-0-2019-20934)

CVE-2020-11668 (GCVE-0-2020-11668)

CVE-2021-33033 (GCVE-0-2021-33033)

CVE-2021-33034 (GCVE-0-2021-33034)

CVE-2021-33909 (GCVE-0-2021-33909)

Tags

Sightings

Nomenclature

Related by attack behaviour