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CVE Record

CVE-2018-5379: The Quagga BGP daemon (bgpd) prior to version 1.2.3 can double-free memory when processing certain forms of...

The Quagga BGP daemon (bgpd) prior to version 1.2.3 can double-free memory when processing certain forms of UPDATE message, containing cluster-list and/or unknown attributes. A successful attack could cause a denial of service or potentially allow an attacker to execute arbitrary code.

HighCVSS 7.5Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

Quagga bgpd before 1.2.3 can mishandle certain BGP UPDATE messages and free memory twice. The immediate business risk is routing service disruption; the source also says arbitrary code execution may be possible. This matters most where Quagga handles production BGP routing. Exposure is limited to systems running Quagga bgpd before 1.2.3, including distribution packages covered by Ubuntu, Debian, Gentoo, and Red Hat advisories. The source bundle’s affected-version metadata appears incomplete or malformed, so validate against installed package versions and vendor advisories. Treat as high priority for network infrastructure. Patch or replace affected bgpd instances first where route stability, partner peering, or internet connectivity depends on Quagga. No active exploitation is cited, but routing disruption impact can be material. Mitigation focus: Upgrade Quagga bgpd to version 1.2.3 or later where applicable.; Apply the relevant OS vendor security update for Quagga packages.; Prioritize systems handling production or externally peered BGP routing..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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Execution behavior lookup

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CVE-2018-5379 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
8Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.0HighCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H1.65.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

7.5High
CVSS 3.0 vector shape for CVE-2018-5379Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
QuaggabgpdbpgdListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-415 · source CWE mapping

Double Free

Double Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.