Security readout for executives and security teams
Plain-English summary
YARA 3.6.1 could crash or expose process memory when handling a specially crafted file. This matters because YARA is often embedded in malware scanning and file triage pipelines. The public record does not show active exploitation or a CVSS score.
Executive priority
Treat this as a targeted maintenance risk for malware analysis and file-scanning infrastructure. Prioritize environments that scan external files automatically, especially where scanner crashes disrupt security monitoring or scanner processes handle sensitive data.
Technical view
The issue is reported in yr_arena_write_data, with mishandling in yr_re_fast_exec in libyara/re.c and _yr_scan_match_callback in libyara/scan.c. Impact is buffer over-read, application crash, and possible disclosure of sensitive process memory when scanning crafted input.
Likely exposure
Exposure is most likely where YARA 3.6.1 or libyara 3.6.1 scans untrusted files, uploads, malware samples, email attachments, or automated feed content. The source bundle does not provide CPEs or downstream product lists.
Exploitation context
The CVE describes remote attackers using a crafted file, but the supplied sources do not state active exploitation. CISA KEV status is false, and no weaponized public exploit evidence is included in the bundle.
Researcher notes
The evidence is sparse: no CVSS, no CWE, no CPEs, and no named fixed release are included. The strongest technical anchors are the affected YARA 3.6.1 functions and the upstream GitHub issue and commit.
Mitigation direction
- Inventory systems and products embedding YARA or libyara 3.6.1.
- Upgrade to a YARA build containing the referenced upstream fix commit or later vendor release.
- Check operating system and appliance vendor advisories for backported YARA fixes.
- Restrict automated scanning services from unnecessary network or secret access.
- Monitor scanning workers for crashes while remediation is pending.
Validation and detection
- Confirm deployed YARA and libyara versions across servers, containers, and security tools.
- Verify whether the referenced upstream commit is present in installed source or package changelogs.
- Review scanner crash logs around untrusted file processing paths.
- Check whether scanning processes can access sensitive memory, files, or credentials.
- Confirm vendor-managed products disclose their bundled YARA version or patch status.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2017-9465 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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/VirusTotal/yara/issues/678CVE reference · x_refsource_CONFIRM
- https://github.com/VirusTotal/yara/commit/992480c30f75943e9cd6245bb2015c7737f9b661CVE 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.