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CVE Record

CVE-2024-44990: bonding: fix null pointer deref in bond_ipsec_offload_ok

In the Linux kernel, the following vulnerability has been resolved: bonding: fix null pointer deref in bond_ipsec_offload_ok We must check if there is an active slave before dereferencing the pointer.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2024-44990 is a Linux kernel bug in network bonding. Under certain bonding and IPsec offload conditions, the kernel may try to use a missing active network slave pointer, causing a null pointer dereference. The public record does not provide a CVSS score or evidence of active exploitation.

Executive priority

Handle this as prioritized kernel maintenance for systems using bonding or affected appliances. It is not currently an emergency based on public evidence, but kernel availability issues can affect production network resilience. Confirm exposure quickly and patch through normal trusted channels.

Technical view

The flaw is in the Linux kernel bonding function bond_ipsec_offload_ok. The fix adds a check for an active slave before dereferencing it. Affected kernel ranges are listed in the CVE data, with stable kernel commits and Debian LTS advisories available as remediation references.

Likely exposure

Exposure is most relevant for Linux systems using kernel bonding, especially where IPsec offload behavior is present. General Linux servers may be unaffected if bonding is not used. Siemens advisories indicate downstream product impact exists, but product-specific exposure must be checked against vendor guidance.

Exploitation context

No cited source reports active exploitation, and the CVE is not listed as KEV. The most plausible impact from the public description is availability disruption, such as a kernel crash, in configurations reaching the vulnerable bonding/IPsec offload path. Required privileges or remote reachability are not defined in the provided sources.

Researcher notes

The source data is sparse: no CVSS, CWE, exploitability details, or proof-of-concept are provided. Analysis should focus on code lineage, kernel version mapping, and whether bonding configurations can enter bond_ipsec_offload_ok without an active slave. Avoid assuming broad exploitability without additional vendor evidence.

Mitigation direction

  • Apply Linux kernel updates containing the referenced stable commits.
  • Use Debian LTS kernel updates where applicable.
  • Review Siemens advisories for affected Siemens products and vendor-specific fixes.
  • Prioritize systems using bonding and IPsec offload features.
  • If patching is delayed, monitor vendor guidance for supported mitigations.

Validation and detection

  • Inventory Linux kernel versions across servers, appliances, and embedded systems.
  • Identify hosts using Linux bonding interfaces.
  • Check whether IPsec offload features are enabled or relevant.
  • Compare installed kernels with vendor fixed versions or stable commits.
  • Review Debian and Siemens advisories for environment-specific applicability.
Prepared
Confidence
medium
Sources
12

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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

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CVE-2024-44990 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
3Timeline events
3ADP providers
12Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container
siemens-SADPADP container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux18cb261afd7bf50134e5ccacc5ec91ea16efadd4, 18cb261afd7bf50134e5ccacc5ec91ea16efadd4, 18cb261afd7bf50134e5ccacc5ec91ea16efadd4, 18cb261afd7bf50134e5ccacc5ec91ea16efadd4, 18cb261afd7bf50134e5ccacc5ec91ea16efadd4, 18cb261afd7bf50134e5ccacc5ec91ea16efadd4unaffected
LinuxLinux5.9, 0, 5.10.225, 5.15.166, 6.1.107, 6.6.48, 6.10.7, 6.11affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.