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CVE Record

CVE-2019-14323: SSDP Responder 1.x through 1.5 mishandles incoming network messages, leading to a stack-based buffer overfl...

SSDP Responder 1.x through 1.5 mishandles incoming network messages, leading to a stack-based buffer overflow by 1 byte. This results in a crash of the server, but only when strict stack checking is enabled. This is caused by an off-by-one error in ssdp_recv in ssdpd.c.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

SSDP Responder versions 1.x through 1.5 can crash when it mishandles certain incoming network messages. The source describes a one-byte stack buffer overflow caused by an off-by-one bug. The documented impact is denial of service, and only when strict stack checking is enabled.

Executive priority

Treat this as a low-priority denial-of-service issue unless SSDP Responder supports critical discovery functions or is reachable from untrusted networks. Patch during normal maintenance after confirming exposure.

Technical view

The flaw is in ssdp_recv in ssdpd.c. It is an off-by-one stack-based buffer overflow while processing incoming network messages. Public source material states the observed result is a server crash under strict stack checking. No CVSS, CWE, or confirmed affected package metadata is provided beyond SSDP Responder 1.x through 1.5.

Likely exposure

Exposure is limited to environments running SSDP Responder 1.x through 1.5, especially where the service accepts messages from untrusted networks. The bundle does not identify downstream vendors, packages, appliances, or distributions.

Exploitation context

The provided sources do not report active exploitation, and the CVE is not listed as KEV. Public evidence supports a crash condition, not code execution or broader compromise. Exploitability details are incomplete in the supplied bundle.

Researcher notes

Evidence is sparse: no CVSS vector, CWE mapping, distribution advisories, or exploit status are included. The key claims are the off-by-one in ssdp_recv, affected versions 1.x through 1.5, conditional crash behavior, and the upstream issue and commit.

Mitigation direction

  • Identify any deployments of SSDP Responder 1.x through 1.5.
  • Update to a release containing the referenced upstream fix, if available.
  • Apply the referenced upstream commit only if vendor packaging guidance supports it.
  • Restrict SSDP Responder exposure to trusted network segments.
  • Monitor vendor advisories for packaged versions and backports.

Validation and detection

  • Inventory hosts and containers for SSDP Responder installations.
  • Confirm installed versions are not 1.x through 1.5, or are patched.
  • Review package changelogs for the referenced upstream commit.
  • Check service exposure from untrusted network segments.
  • Look for unexpected ssdpd crashes in system logs.
Prepared
Confidence
medium
Sources
4

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.

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CVE-2019-14323 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
3Source links

CVSS and timeline data

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

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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