CVE-2023-23455

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Summary

CVECVE-2023-23455
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-01-12 07:15:09 UTC
Updated2026-10-14 23:17:13 UTC
Descriptionatm_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).

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

EPSS: 0.002720000 probability, percentile 0.182090000 (date 2026-10-14)

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1ADPDECLARED5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 11.0 All All All
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected V1.1 custom Not specified

References

ReferenceSourceLinkTags
[SECURITY] [DLA 3349-1] linux-5.10 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
oss-security - Re: Type Confusion in Linux Kernel af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
Debian -- Security Information -- DSA-5324-1 linux af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
[SECURITY] [DLA 3403-1] linux security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
oss-security - Type Confusion in Linux Kernel af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-769027.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
cert-portal.siemens.com/productcert/html/ssa-794697.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 160500 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2023-12160)
  • 160505 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2023-12196)
  • 160506 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2023-12199)
  • 160508 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel-container (ELSA-2023-12200)
  • 160515 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel-container (ELSA-2023-12207)
  • 160516 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2023-12206)
  • 161147 Oracle Enterprise Linux Security Update for kernel (ELSA-2023-7077)
  • 181491 Debian Security Update for linux (DSA 5324-1)
  • 181618 Debian Security Update for linux-5.10 (DLA 3349-1)
  • 181768 Debian Security Update for linux (DLA 3403-1)
  • 184648 Debian Security Update for linux (CVE-2023-23455)
  • 199208 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5915-1)
  • 199212 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5917-1)
  • 199218 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5927-1)
  • 199224 Ubuntu Security Notification for Linux kernel (Raspberry Pi) Vulnerabilities (USN-5934-1)
  • 199226 Ubuntu Security Notification for Linux kernel (GCP) Vulnerabilities (USN-5939-1)
  • 199230 Ubuntu Security Notification for Linux kernel (Raspberry Pi) Vulnerabilities (USN-5940-1)
  • 199239 Ubuntu Security Notification for Linux kernel (IBM) Vulnerabilities (USN-5951-1)
  • 199260 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5982-1)
  • 199261 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5984-1)
  • 199265 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5987-1)
  • 199267 Ubuntu Security Notification for Linux kernel (GCP) Vulnerabilities (USN-5991-1)
  • 199276 Ubuntu Security Notification for Linux kernel (BlueField) Vulnerabilities (USN-6000-1)
  • 199280 Ubuntu Security Notification for Linux kernel (Intel IoTG) Vulnerabilities (USN-6004-1)
  • 199300 Ubuntu Security Notification for Linux kernel (Qualcomm Snapdragon) Vulnerabilities (USN-6030-1)
  • 199330 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-6072-1)
  • 199334 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-6071-1)
  • 199343 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6079-1)
  • 199353 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6091-1)
  • 199354 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6096-1)
  • 199502 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5975-1)
  • 199541 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5924-1)
  • 199560 Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-6001-1)
  • 199568 Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-6013-1)
  • 199570 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5981-1)
  • 199577 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6014-1)
  • 199587 Ubuntu Security Notification for Linux kernel (GCP) Vulnerabilities (USN-6009-1)
  • 242434 Red Hat Update for kernel-rt security (RHSA-2023:6901)
  • 242451 Red Hat Update for kernel security (RHSA-2023:7077)
  • 242789 Red Hat Update for kernel (RHSA-2024:0575)
  • 242890 Red Hat Update for kernel (RHSA-2024:0724)
  • 354736 Amazon Linux Security Advisory for kernel : ALAS2-2023-1932
  • 354739 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.15-2023-013
  • 354741 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2023-026
  • 354775 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2023-042
  • 378468 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-20230042)
  • 378473 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX2-SA-2023:0021)
  • 378512 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2023:0042)
  • 390273 Oracle VM Server for x86 Security Update for kernel (OVMSA-2023-0004)
  • 6140256 AWS Bottlerocket Security Update for kernel (GHSA-8xx6-858m-92cw)
  • 672747 EulerOS Security Update for kernel (EulerOS-SA-2023-1469)
  • 672876 EulerOS Security Update for kernel (EulerOS-SA-2023-1614)
  • 672914 EulerOS Security Update for kernel (EulerOS-SA-2023-1781)
  • 672951 EulerOS Security Update for kernel (EulerOS-SA-2023-1759)
  • 673117 EulerOS Security Update for kernel (EulerOS-SA-2023-2152)
  • 753583 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:0152-1)
  • 753688 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:0406-1)
  • 753709 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:0433-1)
  • 753901 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:1803-1)
  • 753903 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:1801-1)
  • 753914 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:1848-1)
  • 754023 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:2232-1)
  • 755842 SUSE Enterprise Linux Security Update for the linux kernel (SUSE-SU-2023:0774-1)
  • 755900 SUSE Enterprise Linux Security Update for the Linux-RT Kernel (SUSE-SU-2023:0488-1)
  • 905256 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (13002)
  • 905263 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (13007)
  • 906047 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (13002-2)
  • 906423 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (13007-2)
  • 941453 AlmaLinux Security Update for kernel (ALSA-2023:7077)

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