CVE-2013-6890

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Published Dec 23, 2013 CVSS 2.0 · 5.0 Medium EPSS 8.9% KEV · Not listed

Description

denyhosts 2.6 uses an incorrect regular expression when analyzing authentication logs, which allows remote attackers to cause a denial of service (incorrect block of IP addresses) via crafted login names.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

OR	cpe:2.3:o:debian:debian_linux:6.0:::::::*
	cpe:2.3:o:debian:debian_linux:7.0:::::::*
	cpe:2.3:o:debian:debian_linux:7.1:::::::*
	cpe:2.3:o:fedoraproject:fedora::::::::

Configuration 2 [-]

cpe:2.3:a:phil_schwartz:denyhosts:2.6:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
Debian DSA	DSA-2826-1	denyhosts security update
Debian DSA	DSA-2826-2	denyhosts regression update

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 8.9% (8.896% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
http://seclists.org/oss-sec/2013/q4/535
http://secunia.com/advisories/56239
http://www.debian.org/security/2013/dsa-2826
https://bugzilla.redhat.com/show_bug.cgi?id=1045982

History

No history.

Subscriptions

Debian Debian Linux

Fedoraproject Fedora

Phil Schwartz Denyhosts

Weaknesses

CWE-287

Sources

CVE record Updated: Aug 6, 2024, 5:53 PM

Status: PUBLISHED
Assigner: mitre
Published: Dec 23, 2013, 10:00 PM
Updated: Aug 6, 2024, 5:53 PM
Reserved: Nov 28, 2013, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 12:01 AM

Status: Modified
Published: Dec 23, 2013, 10:55 PM
Modified: Jun 17, 2026, 12:01 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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