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CVE Record

CVE-2018-10902: It was found that the raw midi kernel driver does not protect against concurrent access which leads to a do...

It was found that the raw midi kernel driver does not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation.

HighCVSS 7.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2018-10902 is a Linux kernel flaw in the raw MIDI driver. A logged-in local attacker could potentially use it to gain higher privileges. It is not described as remotely exploitable, but it matters for shared servers, developer workstations, and systems where untrusted users or workloads can run code.

Executive priority

Treat as a high-priority patching issue for Linux assets with local users or untrusted workloads. It is less urgent than a remote pre-authentication bug, but successful exploitation could mean full system compromise.

Technical view

The raw MIDI ioctl path in rawmidi.c lacks concurrency protection, causing a double realloc/double free in snd_rawmidi_input_params() and snd_rawmidi_output_status(). The CVE maps to CWE-416 and has CVSS 3.0 score 7.8, with local attack vector, low complexity, low privileges required, no user interaction, and high confidentiality, integrity, and availability impact.

Likely exposure

Linux systems running affected kernel lines listed in the CVE bundle, especially multi-user systems or hosts allowing untrusted local code execution. Exposure requires local privileges, not network-only reachability.

Exploitation context

The supplied bundle says a malicious local attacker could possibly use this for privilege escalation. KEV is false, and the provided sources do not establish active exploitation.

Researcher notes

Focus validation on the raw MIDI kernel driver and snd_rawmidi_ioctl() path. Account for distro backports, because fixed vendor kernels may not use upstream version numbers. The bundle includes an upstream Linux commit and multiple vendor advisories, but no KEV or active exploitation confirmation.

Mitigation direction

  • Apply Linux kernel security updates from the relevant vendor advisory.
  • Prioritize shared servers and systems running untrusted local workloads.
  • Reboot systems after kernel updates where required by the vendor.
  • Check Red Hat, Ubuntu, Debian, or upstream kernel guidance for exact fixed packages.

Validation and detection

  • Inventory Linux kernel versions against the affected versions in the CVE bundle.
  • Map each system to its distribution security advisory status.
  • Verify the running kernel changed after patching and reboot.
  • Confirm no high-risk multi-user systems remain on affected kernels.
Prepared
Confidence
high
Sources
8

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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-416: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2018-10902 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/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
1ADP providers
18Source links

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 3.0HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9redhat

Vulnerability scoring details

Base CVSS 3.0 score

7.8High
CVSS 3.0 vector shape for CVE-2018-10902Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/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

CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux3.16.58, 3.18.117, 4.4.144, 4.9.115, 4.14.100, 4.17.10, 4.18affected
Weakness

CWE details

CWE-416

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

CWE-416 · source CWE mapping

Use After Free

Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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