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CVE Record

CVE-2018-12684: Out-of-bounds Read in the send_ssi_file function in civetweb.c in CivetWeb through 1.10 allows attackers to...

Out-of-bounds Read in the send_ssi_file function in civetweb.c in CivetWeb through 1.10 allows attackers to cause a Denial of Service or Information Disclosure via a crafted SSI file.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2018-12684 is a CivetWeb flaw in handling server-side include (SSI) files. A crafted SSI file could make vulnerable versions read outside expected memory, potentially causing denial of service or exposing data. The bundle identifies CivetWeb through 1.10 and a fixing commit, but provides no CVSS score or active exploitation evidence.

Executive priority

Treat this as a focused remediation item for products or services using CivetWeb SSI. It is not KEV-listed in the bundle, but denial of service and possible information disclosure justify timely inventory, upgrade planning, and configuration review.

Technical view

The issue is an out-of-bounds read in send_ssi_file in civetweb.c. The trigger is crafted SSI content processed by CivetWeb. Reported impacts are denial of service and information disclosure. The referenced fix is commit 8fd069f6dedb064339f1091069ac96f3f8bdb552; release mapping is not included in the bundle.

Likely exposure

Exposure is most likely where CivetWeb through 1.10 is embedded or deployed and configured to process SSI files from untrusted or user-influenced sources.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. Exploitation would require the vulnerable SSI processing path to handle crafted SSI content. Public evidence supports potential denial of service or information disclosure, not remote code execution.

Researcher notes

The public record is sparse: no CVSS, CWE, CPE, or detailed affected product list is included. Analysis should center on CivetWeb through 1.10, SSI enablement, and confirmation of the fixing commit. Avoid broad claims about downstream products unless separately verified.

Mitigation direction

  • Inventory applications and appliances embedding CivetWeb through version 1.10.
  • Upgrade to a CivetWeb build containing the referenced fixing commit, where available.
  • If upgrade timing is unclear, review CivetWeb vendor or project guidance.
  • Disable SSI processing where it is not required.
  • Restrict who can create or modify SSI files on affected systems.

Validation and detection

  • Check deployed CivetWeb versions and embedded third-party components.
  • Confirm whether SSI processing is enabled in exposed services.
  • Verify source or binary provenance includes commit 8fd069f6dedb064339f1091069ac96f3f8bdb552 or later remediation.
  • Review web roots for untrusted SSI file write paths.
  • Monitor affected services for crashes or unexpected SSI-related errors.
Prepared
Confidence
medium
Sources
4

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.

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CVE-2018-12684 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.

Source materials

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.