Kernel: null pointer dereference vulnerability in ida_free in lib/idr.c

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Summary

CVECVE-2023-6915
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-01-15 10:15:26 UTC
Updated2026-10-23 14:20:36 UTC
DescriptionA Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may allow an attacker using this library to cause a denial of service problem due to a missing check at a function return.

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

Problem Types: CWE-476 | CWE-476 NULL Pointer Dereference

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
3.1[email protected]Secondary6.2MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNACVSS6.2MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/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 10.0 All All All
Application Redhat Codeready Linux Builder 8.0 All All All
Application Redhat Codeready Linux Builder For Arm64 8.0_aarch64 All All All
Application Redhat Codeready Linux Builder For Power Little Endian 8.0 All All All
Application Redhat Codeready Linux Builder For Power Little Endian Els 8.10 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux For Els 8.10 All All All
Operating System Redhat Enterprise Linux For Els 8.10 All All All
Operating System Redhat Enterprise Linux For Ibm Z Systems 8.0 All All All
Operating System Redhat Enterprise Linux For Ibm Z Systems Els 8.10 All All All
Operating System Redhat Enterprise Linux For Power Little Endian 8.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:4.18.0-553.rt7.342.el8_10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:4.18.0-553.el8_10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:5.14.0-427.13.1.el9_4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:5.14.0-427.13.1.el9_4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 9 Not specified Not specified

References

ReferenceSourceLinkTags
ida: Fix crash in ida_free when the bitmap is empty · torvalds/linux@af73483 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch
2254982 – (CVE-2023-6915) CVE-2023-6915 kernel: Null Pointer Dereference vulnerability in ida_free in lib/idr.c af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking
lists.debian.org/debian-lts-announce/2024/06/msg00016.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
cve-details af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2024:3138 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
access.redhat.com/errata/RHSA-2024:2950 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
access.redhat.com/errata/RHSA-2024:2394 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Red Hat would like to thank ZhengHan Wang (Hillstone Network) for reporting this issue. (en)

Additional Advisory Data

SourceTimeEvent
CNA2023-12-18T00:00:00.000ZReported to Red Hat.
CNA2024-01-15T00:00:00.000ZMade public.

Workarounds

CNA: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Legacy QID Mappings

  • 200131 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6648-1)
  • 200132 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-6652-1)
  • 200133 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6653-1)
  • 200134 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6651-1)
  • 200135 Ubuntu Security Notification for Linux kernel (OEM) Vulnerability (USN-6650-1)
  • 200150 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6651-2)
  • 200151 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-6648-2)
  • 200152 Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-6653-2)
  • 200157 Ubuntu Security Notification for Linux kernel (StarFive) Vulnerabilities (USN-6651-3)
  • 200158 Ubuntu Security Notification for Linux kernel (Low Latency) Vulnerabilities (USN-6653-3)
  • 200165 Ubuntu Security Notification for Linux kernel (GKE) Vulnerabilities (USN-6653-4)
  • 284873 Fedora Security Update for kernel (FEDORA-2024-c4ec5006e3)
  • 285038 Fedora Security Update for kernel (FEDORA-2024-0eb4a61f45)
  • 357101 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2024-048
  • 357105 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.15-2024-036
  • 357112 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2024-059
  • 357123 Amazon Linux Security Advisory for kernel : ALAS2023-2024-510
  • 6140084 AWS Bottlerocket Security Update for kernel (GHSA-xjc2-hx2f-8cwh)
  • 673321 EulerOS Security Update for kernel (EulerOS-SA-2024-1337)
  • 673723 EulerOS Security Update for kernel (EulerOS-SA-2024-1237)
  • 673992 EulerOS Security Update for kernel (EulerOS-SA-2024-1215)
  • 674156 EulerOS Security Update for kernel (EulerOS-SA-2024-1509)
  • 755747 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2024:0469-1)
  • 755750 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2024:0476-1)
  • 755751 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2024:0474-1)
  • 755752 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2024:0478-1)
  • 755754 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2024:0516-1)
  • 755755 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2024:0515-1)
  • 755756 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2024:0514-1)
  • 907956 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (33550-1)

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