Vulnerability-Lookup

SUSE-SU-2023:2702-1

Vulnerability from csaf_suse - Published: 2023-06-29 10:23 - Updated: 2026-09-20 15:10

Summary

Security update for the Linux Kernel (Live Patch 32 for SLE 15 SP1)

Severity

Important

Notes

Title of the patch: Security update for the Linux Kernel (Live Patch 32 for SLE 15 SP1)

Description of the patch: This update for the Linux Kernel 4.12.14-150100_197_117 fixes several issues. The following security issues were fixed: - CVE-2023-23455: Fixed a denial of service inside atm_tc_enqueue in net/sched/sch_atm.c because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results) (bsc#1207189). - CVE-2023-31436: Fixed an out-of-bounds write in qfq_change_class() because lmax can exceed QFQ_MIN_LMAX (bsc#1210989). - CVE-2023-1390: Fixed remote DoS vulnerability in tipc_link_xmit() (bsc#1210779). - CVE-2023-28466: Fixed race condition that could lead to use-after-free or NULL pointer dereference in do_tls_getsockopt in net/tls/tls_main.c (bsc#1210452).

Patchnames: SUSE-2023-2702,SUSE-SLE-Live-Patching-12-SP5-2023-2702,SUSE-SLE-Module-Live-Patching-15-SP1-2023-2704

CVE-2023-1390

7.5 (High)


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

Affected products

Recommended 5 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_127-default-0:11-2.2.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_127-default-0:11-2.2.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_127-default-0:11-2.2.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_117-default-0:11-150100.2.2.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_117-default-0:11-150100.2.2.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2023-23455

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 5 products, the same list as for CVE-2023-1390

Threats

Impact important

CVE-2023-28466

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 5 products, the same list as for CVE-2023-1390

Threats

Impact important

CVE-2023-31436

7 (High)


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

Affected products

Recommended 5 products, the same list as for CVE-2023-1390

Threats

Impact important

References

34 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-updates/2023…	self
https://bugzilla.suse.com/1207189	self
https://bugzilla.suse.com/1210452	self
https://bugzilla.suse.com/1210779	self
https://bugzilla.suse.com/1210989	self
https://www.suse.com/security/cve/CVE-2023-1390/	self
https://www.suse.com/security/cve/CVE-2023-23455/	self
https://www.suse.com/security/cve/CVE-2023-28466/	self
https://www.suse.com/security/cve/CVE-2023-31436/	self
https://www.suse.com/security/cve/CVE-2023-1390	external
https://bugzilla.suse.com/1209289	external
https://bugzilla.suse.com/1210779	external
https://bugzilla.suse.com/1211495	external
https://www.suse.com/security/cve/CVE-2023-23455	external
https://bugzilla.suse.com/1207036	external
https://bugzilla.suse.com/1207125	external
https://bugzilla.suse.com/1207189	external
https://bugzilla.suse.com/1211833	external
https://www.suse.com/security/cve/CVE-2023-28466	external
https://bugzilla.suse.com/1209366	external
https://bugzilla.suse.com/1210452	external
https://bugzilla.suse.com/1211833	external
https://bugzilla.suse.com/1213841	external
https://www.suse.com/security/cve/CVE-2023-31436	external
https://bugzilla.suse.com/1210940	external
https://bugzilla.suse.com/1211260	external
https://bugzilla.suse.com/1213841	external
https://bugzilla.suse.com/1213842	external
https://bugzilla.suse.com/1214128	external
https://bugzilla.suse.com/1223091	external
https://bugzilla.suse.com/1224419	external

JSON

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          "text": "A remote denial of service vulnerability was found in the Linux kernel\u0027s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition.",
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          "text": "https://www.suse.com/security/cve/CVE-2023-23455"
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        {
          "category": "general",
          "text": "atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results).",
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CVE-2023-1390 (GCVE-0-2023-1390)

Vulnerability from cvelistv5 – Published: 2023-03-16 00:00 – Updated: 2026-09-18 15:03

Summary

A remote denial of service vulnerability was found in the Linux kernel’s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 13:26 UTC

CWE

CWE-1050

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1046 records in the last 180 days details

References

4 references

URL	Tags
https://gist.github.com/netspooky/bee2d07022f6350…
https://infosec.exchange/%40_mattata/109427999461122360
https://github.com/torvalds/linux/commit/b7741344…
https://security.netapp.com/advisory/ntap-2023042…

Impacted products

1 product

Vendor	Product	Version
n/a	Linux kernel (TIPC kernel module)	Affected: Fixed in kernel 5.11-rc4

Show details on NVD website

JSON

To clipboard

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CVE-2023-23455 (GCVE-0-2023-23455)

Vulnerability from cvelistv5 – Published: 2023-01-12 00:00 – Updated: 2026-10-14 22:27

Summary

atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results).

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-06 15:57 UTC

CWE

n/a
CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2267 records in the last 180 days details

References

8 references

URL	Tags
https://www.openwall.com/lists/oss-security/2023/…
https://www.openwall.com/lists/oss-security/2023/…
https://git.kernel.org/pub/scm/linux/kernel/git/t…
https://www.debian.org/security/2023/dsa-5324	vendor-advisory
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

1 product

Vendor	Product	Version
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < V1.1 (custom)

Show details on NVD website

JSON

To clipboard

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                ],
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          "value": "atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results)."
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CVE-2023-28466 (GCVE-0-2023-28466)

Vulnerability from cvelistv5 – Published: 2023-03-15 00:00 – Updated: 2025-05-05 16:02

Summary

do_tls_getsockopt in net/tls/tls_main.c in the Linux kernel through 6.2.6 lacks a lock_sock call, leading to a race condition (with a resultant use-after-free or NULL pointer dereference).

Severity

7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 13:28 UTC

CWE

n/a
CWE-476 - NULL Pointer Dereference

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2267 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/t…
https://security.netapp.com/advisory/ntap-2023042…
https://lists.debian.org/debian-lts-announce/2023…	mailing-list

Show details on NVD website

JSON

To clipboard

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CVE-2023-31436 (GCVE-0-2023-31436)

Vulnerability from cvelistv5 – Published: 2023-04-28 00:00 – Updated: 2026-10-14 23:12

Summary

qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-15 17:15 UTC

CWE

n/a
CWE-787 - Out-of-bounds Write

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2267 records in the last 180 days details

References

11 references

URL	Tags
https://github.com/torvalds/linux/commit/30379334…
https://www.spinics.net/lists/stable-commits/msg2…
https://cdn.kernel.org/pub/linux/kernel/v6.x/Chan…
https://www.debian.org/security/2023/dsa-5402	vendor-advisory
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://security.netapp.com/advisory/ntap-2023060…
http://packetstormsecurity.com/files/173087/Kerne…
http://packetstormsecurity.com/files/173757/Kerne…
http://packetstormsecurity.com/files/175963/Kerne…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

1 product

Vendor	Product	Version
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < V1.1 (custom)

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

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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

SUSE-SU-2023:2702-1

CVE-2023-1390 (GCVE-0-2023-1390)

CVE-2023-23455 (GCVE-0-2023-23455)

CVE-2023-28466 (GCVE-0-2023-28466)

CVE-2023-31436 (GCVE-0-2023-31436)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour