Security readout for executives and security teams
Plain-English summary
CVE-2017-18237 is a denial-of-service flaw in Exempi before 2.4.3. A crafted PostScript file can crash an application using Exempi to process that file. The main business risk is service disruption in workflows that accept or process untrusted .ps files.
Executive priority
Prioritize if Exempi is used in internet-facing or automated file-processing services. Otherwise, handle through normal dependency patching because evidence only supports crash-level denial of service.
Technical view
The issue is in PostScript_Support::ConvertToDate in XMPFiles/source/FormatSupport/PostScript_Support.cpp. Processing a crafted .ps file can trigger an invalid pointer dereference and application crash. The source bundle identifies Exempi before 2.4.3 and a freedesktop commit reference, but provides no CVSS score or CWE.
Likely exposure
Exposure is most likely where Exempi is embedded in document, metadata, indexing, upload, or conversion pipelines that parse PostScript files from users or external sources.
Exploitation context
The CVE describes remote denial of service through a crafted .ps file. The bundle does not show CISA KEV listing or any cited evidence of active exploitation in the wild.
Researcher notes
The available record is narrow: affected version boundary, vulnerable function, crash behavior, crafted .ps trigger, and fix reference. No CVSS, CWE, product CPEs, or active exploitation evidence are provided in the bundle.
Mitigation direction
- Identify systems and applications that package or link Exempi.
- Upgrade Exempi to 2.4.3 or later where applicable.
- Check distribution or vendor advisories for backported fixes.
- Reduce processing of untrusted .ps files until patched.
- Monitor affected services for crashes during file ingestion.
Validation and detection
- Inventory installed Exempi versions across servers and containers.
- Confirm packages report Exempi 2.4.3 or a vendor-fixed build.
- Review applications that accept PostScript uploads or attachments.
- Check crash logs for Exempi or PostScript parsing failures.
- Verify vendor patch status against the referenced freedesktop commit.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2017-18237 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://bugs.freedesktop.org/show_bug.cgi?id=101914CVE reference · x_refsource_CONFIRM
- https://cgit.freedesktop.org/exempi/commit/?id=f19d0107fbae1fb41836cd110d4425e407e64048CVE reference · x_refsource_CONFIRM
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.