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CVE Record

CVE-2024-35792: crypto: rk3288 - Fix use after free in unprepare

In the Linux kernel, the following vulnerability has been resolved: crypto: rk3288 - Fix use after free in unprepare The unprepare call must be carried out before the finalize call as the latter can free the request.

HighCVSS 7.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A Linux kernel crypto-driver cleanup error can access a request after it has been freed. The supplied CVSS rating is 7.8 because a local, low-privileged attacker could potentially compromise confidentiality, integrity, and availability. Practical exploitability and real-world impact are not established by the supplied sources.

Executive priority

Treat as a high-priority maintenance issue on exposed RK3288 systems, especially multi-user or untrusted-workload environments. It is less urgent for systems without this hardware driver. Validate applicability before emergency action because the supplied affected-version information is incomplete.

Technical view

The Rockchip RK3288 crypto driver performed request finalization before unprepare. Because finalization can free the request, subsequent unprepare processing creates a use-after-free condition. The kernel fixes reverse this ordering. The supplied CVSS vector requires local access and low privileges, with no user interaction.

Likely exposure

Likely exposure is limited to systems running an affected Linux kernel and using the RK3288 crypto driver. The supplied version data identifies releases in the 6.6 through 6.8 area but is ambiguous; downstream vendor kernels may differ.

Exploitation context

The CVSS vector describes local, low-privileged attack conditions, not remote exploitation. The bundle marks this CVE as absent from KEV and provides no evidence of active exploitation, a public exploit, or demonstrated attack reliability.

Researcher notes

The central invariant is that unprepare must precede finalize because finalize may release the request. The sources establish the defect and correction but do not establish a reliable exploitation primitive, reachable user interface, affected distribution packages, or exact upstream version boundaries.

Mitigation direction

  • Identify vendor kernels containing one of the referenced upstream fixes.
  • Apply the appropriate vendor-supported kernel security update after compatibility testing.
  • Consult the device or distribution vendor for exact fixed-version mapping.
  • Prioritize systems where untrusted users or workloads have local access.

Validation and detection

  • Inventory kernel versions and devices using the Rockchip RK3288 platform.
  • Confirm whether the RK3288 crypto driver is present and operational.
  • Compare vendor kernel source or changelogs with the referenced fix commits.
  • Verify the patched kernel is active after updating and rebooting.
Prepared
Confidence
medium
Sources
5

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-2024-35792 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

1CVSS vectors
3Timeline events
2ADP providers
4Source links

SSVC decision data

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

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Linux

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2024-35792Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxc66c17a0f69b0e017bbc01d999a28ed96ee84826, c66c17a0f69b0e017bbc01d999a28ed96ee84826, c66c17a0f69b0e017bbc01d999a28ed96ee84826unaffected
LinuxLinux6.6, 0, 6.6.24, 6.7.12, 6.8affected
Weakness

CWE details

No CWE listed

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