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CVE Record

CVE-2019-1010057: nfdump 1.6.16 and earlier is affected by: Buffer Overflow.

nfdump 1.6.16 and earlier is affected by: Buffer Overflow. The impact is: The impact could range from a denial of service to local code execution. The component is: nfx.c:546, nffile_inline.c:83, minilzo.c (redistributed). The attack vector is: nfdump must read and process a specially crafted file. The fixed version is: after commit 9f0fe9563366f62a71d34c92229da3432ec5cf0e.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

nfdump versions 1.6.16 and earlier can mishandle a specially crafted flow data file and overflow memory. If an affected system processes such a file, the result could be a crash and potentially local code execution. This matters most where nfdump ingests files from users, partners, sensors, or automated pipelines.

Executive priority

Treat this as a focused patching item for network telemetry and flow-analysis systems. It is not described as remotely exploitable by itself, but affected ingestion pipelines processing untrusted files could face service disruption or local compromise. Prioritize systems that automatically process files from outside trusted administration paths.

Technical view

CVE records identify buffer overflows in nfdump code paths including nfx.c, nffile_inline.c, and redistributed minilzo. The attack vector is crafted file processing by nfdump. The fixed version is after upstream commit 9f0fe9563366f62a71d34c92229da3432ec5cf0e; Fedora, Gentoo, and Debian published packaged security updates.

Likely exposure

Exposure is limited to systems running nfdump 1.6.16 or earlier, especially collectors, analysis hosts, or batch jobs that process externally supplied NetFlow or nfdump files. Internet exposure is not indicated in the bundle; ingestion trust boundaries matter more than open ports.

Exploitation context

The source bundle does not cite active exploitation, and KEV is false. Exploitation requires nfdump to read and process a specially crafted file. Reported impact ranges from denial of service to possible local code execution, but the bundle provides no CVSS score or exploit maturity details.

Researcher notes

Evidence is clear on affected version, file-processing attack vector, affected code areas, and fixed upstream commit. Evidence is incomplete on CVSS severity, reliable exploitation, and exact post-fix release mapping outside distribution advisories. Validate vendor backports rather than relying only on upstream version strings.

Mitigation direction

  • Upgrade nfdump to a version after commit 9f0fe9563366f62a71d34c92229da3432ec5cf0e.
  • Apply relevant Fedora, Gentoo, Debian, or other vendor security packages where applicable.
  • Restrict nfdump processing to trusted files until patched.
  • Review automated ingestion pipelines for untrusted or partner-supplied flow files.

Validation and detection

  • Inventory hosts and containers running nfdump.
  • Confirm installed nfdump versions are newer than 1.6.16 or vendor-patched.
  • Identify jobs that process externally supplied nfdump or NetFlow files.
  • Check package advisories for the operating system in use.
Prepared
Confidence
medium
Sources
7

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

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ATT&CK lookup starting points

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Execution behavior lookup

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CVE-2019-1010057 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
0Timeline events
0ADP providers
6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
nfdumpnfdump≤ 1.6.16 [fixed: after commit 9f0fe9563366f62a71d34c92229da3432ec5cf0e]Listed
Weakness

CWE details

No CWE listed

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