Security readout for executives and security teams
Plain-English summary
CVE-2018-9257 is a Wireshark flaw where processing certain Cassandra CQL protocol data could make Wireshark loop indefinitely. The main business risk is disruption to packet analysis work, especially when analysts open untrusted captures. The sources do not show code execution, data theft, or active exploitation.
Executive priority
Treat as a targeted availability risk for security operations tooling, not an enterprise-wide emergency. Prioritize remediation on analyst machines and systems that process untrusted captures.
Technical view
Wireshark 2.4.0 through 2.4.5 had an infinite-loop condition in the CQL dissector. The issue was addressed in epan/dissectors/packet-cql.c by checking for a nonzero number of columns before continuing dissector processing.
Likely exposure
Exposure is likely limited to systems running Wireshark 2.4.0 through 2.4.5 that inspect CQL traffic or open captures containing CQL protocol data. This is more relevant to analyst workstations, lab systems, and monitoring workflows than internet-facing services.
Exploitation context
CISA KEV status is false in the supplied data, and no cited source states active exploitation. The plausible impact is denial of service against Wireshark analysis sessions through problematic CQL dissection, not confirmed remote compromise.
Researcher notes
The public description is narrow: CQL dissector infinite loop, fixed by validating a nonzero column count. No CVSS, CWE, exploit evidence, or detailed affected platform matrix was supplied.
Mitigation direction
- Identify Wireshark installations running versions 2.4.0 through 2.4.5.
- Upgrade affected Wireshark installations to a vendor-fixed version outside the affected range.
- Review Wireshark advisory WNPA-SEC-2018-22 for official remediation guidance.
- Avoid opening untrusted packet captures on affected versions until remediated.
Validation and detection
- Inventory endpoint and analyst workstation Wireshark versions.
- Confirm affected systems are not running Wireshark 2.4.0 through 2.4.5.
- Check whether workflows inspect Cassandra CQL traffic or captures.
- Document exceptions where legacy Wireshark versions remain in use.
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-2018-9257 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://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=d7a9501b0439a5dbf24016a95b4896170d789dc2CVE reference · x_refsource_MISC
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14530CVE reference · x_refsource_MISC
- https://www.wireshark.org/security/wnpa-sec-2018-22.htmlCVE 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.