Security readout for executives and security teams
Plain-English summary
This flaw affects Suricata before 4.1.2, a network security monitoring engine. A specially formed network packet could make Suricata miss a matching detection signature, reducing confidence in alerts. The bundle does not show active exploitation or a CVSS score.
Executive priority
Treat this as a security monitoring reliability issue. It is not documented as active exploitation, but it can weaken detection controls. Upgrade affected Suricata sensors during the next security maintenance window, sooner for high-risk network monitoring points.
Technical view
The CVE describes a denial-of-service or DNS detection bypass in Suricata packet decoding and application protocol detection code, including IPv6 and Teredo-related components. The stated impact is signature detection evasion from crafted network traffic. Fixed version: 4.1.2.
Likely exposure
Exposure is likely where Suricata versions before 4.1.2 inspect untrusted network traffic, especially deployments relying on DNS, IPv6, or tunneled traffic detection. Systems not running Suricata, or already on 4.1.2 or later, are not indicated as affected.
Exploitation context
The source bundle says an attacker can trigger the issue by sending a specially crafted network request. It does not provide evidence of public exploitation, weaponized exploit availability, or CISA KEV listing.
Researcher notes
Evidence is limited to the CVE record, OISF issue, and fix commits. The CVE has no CVSS, CWE, or KEV signal in the bundle. Analysis should avoid assuming crash behavior beyond the stated detection bypass impact.
Mitigation direction
- Upgrade Suricata to version 4.1.2 or later.
- Check OISF guidance for any deployment-specific recommendations.
- Prioritize sensors monitoring internet-facing or high-risk network segments.
- Review detection coverage for DNS, IPv6, and Teredo traffic after upgrading.
Validation and detection
- Inventory Suricata sensor versions across all environments.
- Confirm affected sensors are not running versions before 4.1.2.
- Review change records to verify the 4.1.2 fix is deployed.
- Check monitoring gaps where Suricata was relied on for DNS detection.
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-2019-1010251 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://redmine.openinfosecfoundation.org/issues/2736CVE reference · x_refsource_MISC
- https://github.com/OISF/suricata/pull/3590/commits/11f3659f64a4e42e90cb3c09fcef66894205aefeCVE reference · x_refsource_MISC
- https://github.com/OISF/suricata/pull/3590/commits/8357ef3f8ffc7d99ef6571350724160de356158bCVE 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.