Security readout for executives and security teams
Plain-English summary
A flaw in the Linux ionic network driver can mishandle jumbo network packets when XDP transmits or redirects them. Reusing packet-memory pages incorrectly can crash the kernel, disrupting an affected server or appliance. The supplied CVSS score is 8.8, but the bundle does not establish active exploitation or confirm impacts beyond the documented kernel panic.
Executive priority
Prioritize timely remediation where ionic networking, jumbo frames, and XDP transmit or redirect are actually used, especially on high-availability infrastructure. Other Linux systems should first be inventoried rather than treated as equally exposed. Escalate immediately if matching kernel crashes are observed. Current evidence supports serious denial-of-service risk but not confirmed active exploitation.
Technical view
ionic_run_xdp() clears DMA mappings and page pointers for the first receive-buffer page but not all scatter-gather pages during XDP_TX or XDP_REDIRECT. Those pages may be reused while still associated with an XDP frame, eventually causing a protection fault in xdp_return_frame() and a kernel panic. The referenced Linux commits correct multi-buffer cleanup.
Likely exposure
Exposure appears limited to Linux systems using the ionic driver with multi-buffer jumbo frames and XDP_TX or XDP_REDIRECT processing. The bundle identifies Linux 6.9, 6.9.8, and 6.10, but its version data is ambiguous and does not establish precise vulnerable ranges. Confirm installed kernel fixes with the relevant distribution or vendor.
Exploitation context
The CVSS vector describes adjacent-network reachability, low complexity, no privileges, and no user interaction. However, the supplied evidence documents a kernel panic under specific ionic, jumbo-frame, and XDP conditions; it does not demonstrate malicious exploitation. The CVE is not listed as KEV in the bundle, and no public exploit evidence is provided.
Researcher notes
The documented failure is improper lifecycle handling of scatter-gather pages in multi-buffer XDP frames. Researchers should distinguish the demonstrated kernel-panic path from the CVSS confidentiality and integrity ratings, which are not independently substantiated by the supplied narrative. No CWE is assigned. Exact vulnerable and fixed release boundaries require confirmation from distribution advisories or commit inclusion records.
Mitigation direction
- Apply a vendor-supported kernel update containing the applicable referenced ionic fix.
- Check Linux distribution advisories to determine the corrected package for each deployed kernel.
- Where patching is delayed, assess whether ionic jumbo-frame XDP transmit or redirect functionality can be safely disabled.
- Prioritize availability-sensitive systems using the ionic driver and XDP.
Validation and detection
- Inventory systems for the ionic driver, kernel version, jumbo-frame configuration, and attached XDP programs.
- Confirm the installed kernel package includes the applicable upstream stable commit or vendor backport.
- Review kernel logs for ionic faults, xdp_return_frame failures, protection faults, or unexplained panics.
- Validate normal networking and XDP behavior after updating in a controlled environment.
Public sources used
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-2024-42083 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
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.85.9LinuxVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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/8ae401525ae84228a8986bb369224a6224e4d22fCVE reference, Linux
- https://git.kernel.org/stable/c/e3f02f32a05009a688a87f5799e049ed6b55bab5CVE reference, Linux
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.