Info Leak in l2cap_core in the Linux Kernel

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Summary

CVECVE-2022-42895
StatePUBLISHED
AssignerGoogle
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-11-23 15:15:10 UTC
Updated2026-10-14 19:16:52 UTC
DescriptionThere is an infoleak vulnerability in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_parse_conf_req function which can be used to leak kernel pointers remotely. We recommend upgrading past commit  https://github.com/torvalds/linux/commit/b1a2cd50c0357f243b7435a732b4e62ba3157a2e https://www.google.com/url

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

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

EPSS: 0.004130000 probability, percentile 0.340040000 (date 2026-10-14)

Problem Types: CWE-824 | CWE-824 CWE-824 Access of Uninitialized Pointer

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.5MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1[email protected]Secondary5.1MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1CNACVSS5.1MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel - All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux Kernel affected 3.0.0 b1a2cd50c0357f243b7435a732b4e62ba3157a2e custom Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected V1.1 custom Not specified

References

ReferenceSourceLinkTags
Bluetooth: L2CAP: Fix attempting to access uninitialized memory · torvalds/linux@b1a2cd5 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
???????? af854a3a-2127-422b-91ae-364da2661108 kernel.dance Patch, Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-794697.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 160371 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2023-12008)
  • 160372 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel-container (ELSA-2023-12009)
  • 160381 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2023-12017)
  • 160382 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel-container (ELSA-2023-12018)
  • 160447 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2023-12109)
  • 160458 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2023-12117)
  • 160461 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel-container (ELSA-2023-12118)
  • 161066 Oracle Enterprise Linux Security Update for kernel (ELSA-2023-6583)
  • 161147 Oracle Enterprise Linux Security Update for kernel (ELSA-2023-7077)
  • 181401 Debian Security Update for linux (CVE-2022-42895)
  • 181440 Debian Security Update for linux-5.10 (DLA 3244-1)
  • 181565 Debian Security Update for linux (DLA 3245-1)
  • 199076 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5780-1)
  • 199153 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5853-1)
  • 199154 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5858-1)
  • 199156 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5859-1)
  • 199159 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5851-1)
  • 199160 Ubuntu Security Notification for Linux kernel (GKE) Vulnerabilities (USN-5860-1)
  • 199166 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5850-1)
  • 199177 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5876-1)
  • 199178 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5874-1)
  • 199179 Ubuntu Security Notification for Linux kernel (GKE) Vulnerabilities (USN-5877-1)
  • 199180 Ubuntu Security Notification for Linux kernel (GKE) Vulnerabilities (USN-5875-1)
  • 199181 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5878-1)
  • 199183 Ubuntu Security Notification for Linux kernel (HWE) Vulnerabilities (USN-5879-1)
  • 199204 Ubuntu Security Notification for Linux kernel (Azure CVM) Vulnerabilities (USN-5909-1)
  • 199213 Ubuntu Security Notification for Linux kernel (BlueField) Vulnerabilities (USN-5918-1)
  • 199214 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5920-1)
  • 199217 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5925-1)
  • 199218 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5927-1)
  • 199502 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5975-1)
  • 199541 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5924-1)
  • 199555 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5926-1)
  • 199566 Ubuntu Security Notification for Linux kernel (GCP) Vulnerabilities (USN-6007-1)
  • 199567 Ubuntu Security Notification for Linux kernel (HWE) Vulnerabilities (USN-5883-1)
  • 199581 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5919-1)
  • 199590 Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-5884-1)
  • 242399 Red Hat Update for kernel security (RHSA-2023:6583)
  • 242434 Red Hat Update for kernel-rt security (RHSA-2023:6901)
  • 242451 Red Hat Update for kernel security (RHSA-2023:7077)
  • 377891 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2023:0002)
  • 378043 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX2-SA-2023:0011)
  • 378468 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-20230042)
  • 378512 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2023:0042)
  • 672532 EulerOS Security Update for kernel (EulerOS-SA-2023-1126)
  • 672564 EulerOS Security Update for kernel (EulerOS-SA-2023-1102)
  • 753014 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4505-1)
  • 753020 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4585-1)
  • 753034 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4504-1)
  • 753038 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4573-1)
  • 753039 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4574-1)
  • 753045 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4503-1)
  • 753047 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4566-1)
  • 753051 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4589-1)
  • 753060 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4615-1)
  • 753061 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4616-1)
  • 753062 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4613-1)
  • 753063 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4617-1)
  • 941453 AlmaLinux Security Update for kernel (ALSA-2023:7077)

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