Security readout for executives and security teams
Plain-English summary
CVE-2024-35947 is a Linux kernel denial-of-service issue in the dynamic debug control parser. A local low-privileged user could trigger a kernel BUG condition, causing availability impact. The public record shows kernel stable fixes and distro notices, but no KEV listing or cited evidence of active exploitation.
Executive priority
Handle through normal kernel patch management, with higher priority on multi-user systems, shared compute, CI runners, and hosts running untrusted workloads. This is an availability risk, not a confirmed data breach or remote compromise issue.
Technical view
The fix changes an old BUG_ON path in the Linux kernel dyndbg control parser to log an error and return -EINVAL. CVSS 3.1 is 5.5: local attack vector, low complexity, low privileges, no user interaction, and high availability impact only.
Likely exposure
Exposure is most relevant to Linux systems running affected kernel lines and allowing local users or workloads to reach the dynamic debug control path. Internet-facing remote exposure is not supported by the provided CVSS vector or sources.
Exploitation context
The source bundle supports local, low-privilege denial of service potential. It does not support remote exploitation, data theft, privilege escalation, or active exploitation. KEV status is false in the provided record.
Researcher notes
The public description is terse and does not provide a CWE. The important signal is the replacement of BUG_ON with graceful error handling in dyndbg parsing. Research should focus on affected kernel lineage and vendor backports, not on assuming broader impact.
Mitigation direction
- Update affected Linux kernels using vendor-supported fixed packages.
- Prioritize Debian LTS and Fedora systems referenced by the advisories.
- Check kernel stable commits or distribution changelogs for the dyndbg fix.
- Reboot systems after kernel updates so the fixed kernel is active.
- Where patching is delayed, restrict unnecessary local user access.
Validation and detection
- Inventory Linux kernel versions across servers, workstations, and appliances.
- Compare installed kernels with vendor advisories and fixed package versions.
- Confirm rebooted systems are running the patched kernel, not only installed packages.
- Review vulnerability scanner findings for CVE-2024-35947 accuracy.
- Check vendor guidance for any platform-specific remediation notes.
Public sources used
- CVE Program
- CVE List V5
- Linux stable commit 3c718bddddca
- Linux stable commit 343081c21e56
- Linux stable commit 41d8ac238ab1
- Linux stable commit ba3c118cff7b
- Linux stable commit a66c869b17c4
- Linux stable commit a69e1bdd777c
- Linux stable commit 529e18527855
- Linux stable commit 00e7d3bea2ce
- Fedora package announcement
- Debian LTS announcement
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2024-35947 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/3c718bddddca9cbef177ac475b94c5c91147fb38CVE reference, Linux
- https://git.kernel.org/stable/c/343081c21e56bd6690d342e2f5ae8c00183bf081CVE reference, Linux
- https://git.kernel.org/stable/c/41d8ac238ab1cab01a8c71798d61903304f4e79bCVE reference, Linux
- https://git.kernel.org/stable/c/ba3c118cff7bcb0fe6aa84ae1f9080d50e31c561CVE reference, Linux
- https://git.kernel.org/stable/c/a66c869b17c4c4dcf81d273b02cb0efe88e127abCVE reference, Linux
- https://git.kernel.org/stable/c/a69e1bdd777ce51061111dc419801e8a2fd241ccCVE reference, Linux
- https://git.kernel.org/stable/c/529e1852785599160415e964ca322ee7add7aef0CVE reference, Linux
- https://git.kernel.org/stable/c/00e7d3bea2ce7dac7bee1cf501fb071fd0ea8f6cCVE reference, Linux
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OTB4HWU2PTVW5NEYHHLOCXDKG3PYA534/CVE reference, CVE · x_transferred
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlCVE reference, CVE · x_transferred
- https://lists.debian.org/debian-lts-announce/2024/06/msg00019.htmlCVE reference, CVE · x_transferred
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.