Linux Kernel: security vulnerability (CVE-2024-58009)
Published Last modified Sources: Siemens ProductCERT, BSI, SUSE, Debian LTS, Red Hat, CVE.org, EUVD
What is affected, what to do
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc A NULL sock pointer is passed into l2cap_sock_alloc() when it is called from l2cap_sock_new_connection_cb() and the error handling paths should also be aware of it. Seemingly a more elegant solution would be to swap bt_sock_alloc() and l2cap_chan_create() calls since they are not interdependent to that moment but then l2cap_chan_create() adds the soon to be deallocated and still dummy-initialized channel to the global list accessible by many L2CAP paths.
Update Linux Kernel to version 5.4.291, Linux Kernel to version 5.10.235, Linux Kernel to version 5.15.179.
- Affected
- Linux Kernel
lt 5.4.287..5.4.291 - Linux Kernel
lt 5.10.231..5.10.235 - Linux Kernel
lt 5.15.174..5.15.179 - Linux Kernel
lt 6.1.120..6.1.129 - Linux Kernel
lt 6.6.66..6.6.78 - Linux Kernel
lt 6.12.5..6.12.14 - Linux Kernel
lt 6.13..6.13.3
- Linux Kernel
- Fixed in
- Linux Kernel
5.4.291 - Linux Kernel
5.10.235 - Linux Kernel
5.15.179 - Linux Kernel
6.1.129 - Linux Kernel
6.6.78 - Linux Kernel
6.12.14 - Linux Kernel
6.13.3 - Linux Kernel
6.14
- Linux Kernel
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Metrics
5.5
Priority
XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.
Source: NVD, CVSS v3
5.5
CVSS v3
Severity Medium on the scale from 0 to 10.
Source: Siemens ProductCERT, BSI, SUSE, Debian LTS, Red Hat, CVE.org, EUVD
0.2 %
EPSS score
Low — model estimates < 1% exploitation likelihood.
Source: FIRST EPSS, percentile 10.6
Show all metrics
- Severity
- Medium
Priority (0–325)
The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?
Read in glossary- 36.40 Methodology
Exploit maturity
An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.
Read in glossary- no public PoC known
XIEM Effective CVSS
XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.
Read in glossary- 5.5 Methodology
CVSS v3
CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.
Read in glossary- 5.5
EPSS score
The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.
Read in glossary- 0.2 %
- Low — model estimates < 1% exploitation likelihood.
EPSS percentile
The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.
Read in glossary- 10.6
- Elevated — this CVE ranks above at least 10% of all CVEs scored today.
KEV status
The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.
Read in glossary- —
- Published
Detection rules
No NEOSEC detection rule is available for this vulnerability yet.
Classification under NIS2 and CRA
Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.
NIS2
NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.
Read in glossary- Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
CRA
The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.
Read in glossary- From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001
ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.
Read in glossary- Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc A NULL sock pointer is passed into l2cap_sock_alloc() when it is called from l2cap_sock_new_connection_cb() and the error handling paths should also be aware of it. Seemingly a more elegant solution would be to swap bt_sock_alloc() and l2cap_chan_create() calls since they are not interdependent to that moment but then l2cap_chan_create() adds the soon to be deallocated and still dummy-initialized channel to the global list accessible by many L2CAP paths. The channel would be removed from the list in short period of time but be a bit more straight-forward here and just check for NULL instead of changing the order of function calls. Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.
Source: siemens_advisory, BSI CSAF, BSI WID Portal, suse_csaf, Debian LTS Advisories, redhat_csaf, cvelistv5, NVD (NIST), CVE.org (MITRE), ENISA EUVD
Affected products
The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.
| Affected versions | Fixed in | ||
|---|---|---|---|
| Linux | Linux |
|
|
| Dell | Secure Connect Gateway |
|
|
| Siemens | SIMATIC S7 |
|
|
Vendors and products
Affected operating systems
| Linux | debian | linux-6.1 | bullseye |
| Linux | linux | linux_kernel | — |
References & sources
- git.kernel.orgstable/c/a9a7672fc1a0fe18502493936ccb06413ab89ea6
- git.kernel.orgstable/c/8e605f580a97530e5a3583beea458a3fa4cbefbd
- git.kernel.orgstable/c/cf601a24120c674cd7c907ea695f92617af6abd0
- git.kernel.orgstable/c/297ce7f544aa675b0d136d788cad0710cdfb0785
- git.kernel.orgstable/c/245d48c1ba3e7a1779c2f4cbc6f581ddc8a78e22
- git.kernel.orgstable/c/691218a50c3139f7f57ffa79fb89d932eda9571e
- git.kernel.orgstable/c/49c0d55d59662430f1829ae85b969619573d0fa1
- git.kernel.orgstable/c/5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1
- lists.debian.orgdebian-lts-announce/2025/03/msg00028.html
- Siemens ProductCERTproductcert/html/ssa-265688.html
- Siemens ProductCERTproductcert/html/ssa-784472.html
Changes to this CVE
Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).
Record modifiedLinux
New references:- https://git.kernel.org/stable/c/245d48c1ba3e7a1779c2f4cbc6f581ddc8a78e22
- https://git.kernel.org/stable/c/297ce7f544aa675b0d136d788cad0710cdfb0785
- https://git.kernel.org/stable/c/49c0d55d59662430f1829ae85b969619573d0fa1
- https://git.kernel.org/stable/c/5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1
and 4 more references
Show 24 original changes
Individual changes of this event as published by NVD Type Action Before After Reference added —https://git.kernel.org/stable/c/245d48c1ba3e7a1779c2f4cbc6f581ddc8a78e22Reference added —https://git.kernel.org/stable/c/297ce7f544aa675b0d136d788cad0710cdfb0785Reference added —https://git.kernel.org/stable/c/49c0d55d59662430f1829ae85b969619573d0fa1Reference added —https://git.kernel.org/stable/c/5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1Reference added —https://git.kernel.org/stable/c/691218a50c3139f7f57ffa79fb89d932eda9571eReference added —https://git.kernel.org/stable/c/8e605f580a97530e5a3583beea458a3fa4cbefbdReference added —https://git.kernel.org/stable/c/a9a7672fc1a0fe18502493936ccb06413ab89ea6Reference added —https://git.kernel.org/stable/c/cf601a24120c674cd7c907ea695f92617af6abd0Reference removed https://git.kernel.org/stable/c/245d48c1ba3e7a1779c2f4cbc6f581ddc8a78e22—Reference removed https://git.kernel.org/stable/c/297ce7f544aa675b0d136d788cad0710cdfb0785—Reference removed https://git.kernel.org/stable/c/49c0d55d59662430f1829ae85b969619573d0fa1—Reference removed https://git.kernel.org/stable/c/5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1—Reference removed https://git.kernel.org/stable/c/691218a50c3139f7f57ffa79fb89d932eda9571e—Reference removed https://git.kernel.org/stable/c/8e605f580a97530e5a3583beea458a3fa4cbefbd—Reference removed https://git.kernel.org/stable/c/a9a7672fc1a0fe18502493936ccb06413ab89ea6—Reference removed https://git.kernel.org/stable/c/cf601a24120c674cd7c907ea695f92617af6abd0—Reference type removed https://git.kernel.org/stable/c/245d48c1ba3e7a1779c2f4cbc6f581ddc8a78e22 Types: Patch—Reference type removed https://git.kernel.org/stable/c/297ce7f544aa675b0d136d788cad0710cdfb0785 Types: Patch—Reference type removed https://git.kernel.org/stable/c/49c0d55d59662430f1829ae85b969619573d0fa1 Types: Patch—Reference type removed https://git.kernel.org/stable/c/5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1 Types: Patch—Reference type removed https://git.kernel.org/stable/c/691218a50c3139f7f57ffa79fb89d932eda9571e Types: Patch—Reference type removed https://git.kernel.org/stable/c/8e605f580a97530e5a3583beea458a3fa4cbefbd Types: Patch—Reference type removed https://git.kernel.org/stable/c/a9a7672fc1a0fe18502493936ccb06413ab89ea6 Types: Patch—Reference type removed https://git.kernel.org/stable/c/cf601a24120c674cd7c907ea695f92617af6abd0 Types: Patch—Source identifier: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Record modifiedCVE Program
Show 2 original changes
Individual changes of this event as published by NVD Type Action Before After Reference added —https://lists.debian.org/debian-lts-announce/2025/03/msg00028.htmlReference removed https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html—Source identifier: af854a3a-2127-422b-91ae-364da2661108
Record modifiedSiemens ADP
Show 4 original changes
Individual changes of this event as published by NVD Type Action Before After Affected versions (publisher) added —Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2024/58xxx/CVE-2024-58009.json">CVE-2024-58009</a>Reference added —https://cert-portal.siemens.com/productcert/html/ssa-265688.htmlReference added —https://cert-portal.siemens.com/productcert/html/ssa-784472.htmlReference removed https://cert-portal.siemens.com/productcert/html/ssa-265688.html—Source identifier: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
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<a href="https://intel.neosec.eu/en/cve/CVE-2024-58009"><img src="https://intel.neosec.eu/badge/cve/CVE-2024-58009.svg?lang=en" alt="CVE-2024-58009 – NEOSEC Intel" height="20"></a>