Security readout for executives and security teams
Plain-English summary
CVE-2018-11230 is a memory-safety flaw in jbig2enc 0.29. A crafted file can crash affected processing, causing denial of service. The sources also mention possible unspecified impact, but do not define data theft, code execution, affected downstream products, or a fix.
Executive priority
Prioritize inventory and containment for any internet-facing or customer-facing file-processing pipeline. Urgency is limited by sparse evidence, but denial-of-service risk is credible where untrusted files are processed.
Technical view
The issue is a use-after-free in jbig2_add_page in jbig2enc.cc within libjbig2enc.a in jbig2enc 0.29. The CVE describes remote attacker influence through a crafted file, with denial of service and possible unspecified other impact.
Likely exposure
Exposure is most likely where jbig2enc 0.29 is installed or embedded, especially in services processing untrusted files. The bundle does not identify downstream products or packages.
Exploitation context
The source bundle does not show CISA KEV listing, active exploitation, public weaponization, or exploit reliability. Treat exploit status as unconfirmed.
Researcher notes
Evidence is sparse: no CVSS, CWE, patch reference, or downstream affected product list is included. The key technical signal is a crafted-file-triggered use-after-free in jbig2_add_page for jbig2enc 0.29.
Mitigation direction
- Inventory systems and containers for jbig2enc 0.29 or bundled libjbig2enc.a.
- Check upstream project guidance and issue 61 for available fixes or replacement versions.
- Restrict untrusted file processing through jbig2enc until exposure is understood.
- Isolate file-conversion workers and apply resource limits to reduce denial-of-service impact.
- Monitor conversion services for crashes linked to crafted or malformed files.
Validation and detection
- Confirm whether jbig2enc 0.29 is present in build manifests, containers, or runtime hosts.
- Trace upload and conversion workflows that pass user-controlled files to jbig2enc.
- Review crash logs for use-after-free or abnormal termination in jbig2_add_page paths.
- Verify any upgraded or replaced jbig2enc component is actually used in production.
- Document whether the service accepts untrusted remote files.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
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CVE-2018-11230 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/agl/jbig2enc/issues/61CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.