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CVE Record

CVE-2024-36288: SUNRPC: Fix loop termination condition in gss_free_in_token_pages()

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix loop termination condition in gss_free_in_token_pages() The in_token->pages[] array is not NULL terminated. This results in the following KASAN splat: KASAN: maybe wild-memory-access in range [0x04a2013400000008-0x04a201340000000f]

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2024-36288 is a Linux kernel SUNRPC memory-handling bug. The kernel may read past an internal pages array because code assumed NULL termination that is not present. The supplied sources do not provide CVSS, impact rating, or confirmed exploitation, so urgency should be driven by Linux kernel exposure and vendor advisories.

Executive priority

Treat this as a kernel patch management item with uncertain severity. Prioritize internet-facing, appliance, and NFS/SUNRPC-dependent systems first, but do not claim emergency exploitation without new vendor or KEV evidence.

Technical view

The flaw is in gss_free_in_token_pages() in SUNRPC. in_token->pages[] is not NULL terminated, causing an incorrect loop termination condition and a KASAN wild-memory-access report. Kernel stable commits are referenced as fixes, but the bundle does not fully describe affected release ranges or attacker prerequisites.

Likely exposure

Potentially exposed systems are those running Linux kernels with the vulnerable SUNRPC GSS code. Exposure is more plausible where SUNRPC, NFS, or RPCSEC_GSS functionality is enabled. Debian LTS and Siemens advisories indicate downstream vendor relevance, but exact affected product and version mapping is incomplete in the bundle.

Exploitation context

The bundle marks KEV as false and provides no cited evidence of active exploitation or public exploit availability. It also does not establish whether exploitation requires local access, network reachability, authentication, or a specific SUNRPC configuration.

Researcher notes

Key unknowns are exploitability, privilege requirements, and affected release boundaries. The strongest evidence is the Linux kernel fix description and downstream advisory references. Validate against vendor kernels rather than assuming mainline commit hashes map directly to packaged builds.

Mitigation direction

  • Apply Linux kernel updates from the relevant OS or appliance vendor.
  • Review Debian LTS and Siemens advisories for product-specific fixed versions.
  • Track the referenced Linux stable commits in vendor kernel changelogs.
  • If patching is delayed, follow vendor guidance for limiting SUNRPC or NFS exposure.

Validation and detection

  • Inventory Linux kernel versions across servers, appliances, and embedded systems.
  • Identify systems using SUNRPC, NFS, or RPCSEC_GSS functionality.
  • Confirm installed kernels include vendor fixes or referenced stable commits.
  • Check Debian and Siemens advisories for matching products and packages.
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-2024-36288 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
LinuxLinuxab8466d4e26806a4ae82c282762c4545eecf45ef, 4420b73c7f26fd5fcb37bbce5313dd356ef1b3ca, f148a95f68c66c1b097391b68e153d5a46f0e780, fe0b474974fee7af1df286e0edd5a1460c811865, c1d8c429e4d2ce85ec5c92cf71cb419baf75c56f, 8ca148915670a2921afcc255af9e1dc80f37b052, bafa6b4d95d97877baa61883ff90f7e374427fae, a3c1afd5d7ad59e34a275d80c428952f83c8c1f0unaffected
LinuxLinux6.9.3unaffected
Weakness

CWE details

No CWE listed

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