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CVE Record

CVE-2019-15165: sf-pcapng.c in libpcap before 1.9.1 does not properly validate the PHB header length before allocating memory.

sf-pcapng.c in libpcap before 1.9.1 does not properly validate the PHB header length before allocating memory.

MediumCVSS 5.3Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2019-15165 is a resource-handling flaw in libpcap before 1.9.1. A malformed pcapng input can cause libpcap to allocate memory based on an insufficiently validated header length, risking service disruption in software that processes packet capture data. Exposure is most likely where servers, appliances, endpoint tools, or analysis pipelines use libpcap before 1.9.1 to process pcapng files or capture data from untrusted sources. Treat this as a moderate availability risk. Prioritize patching systems that automatically ingest packet captures or expose capture-analysis services to untrusted inputs. Mitigation focus: Upgrade libpcap to 1.9.1 or a vendor-patched package.; Apply relevant distribution updates from Debian, Fedora, openSUSE, Ubuntu, Apple, or Oracle guidance.; Restrict processing of untrusted pcapng files until patched..

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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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cwe · low confidence lookup

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cve · low confidence lookup

CVE-2019-15165 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1CVSS vectors
0Timeline events
0ADP 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
5.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.3Medium
CVSS 3.1 vector shape for CVE-2019-15165Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

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

CWE-770 · source CWE mapping

Allocation of Resources Without Limits or Throttling

Allocation of Resources Without Limits or Throttling represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.