CVE-2015-2689 - Vulnerability Details - OpenCVE

Description

Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle pending-connection resolve states during periods of high DNS load, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets.

Published: 2020-01-24

Score: 7.5 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

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

Vendor Product Default status Versions

The Tor Project

Tor

affected

Version	Status	Constraints
`before 0.2.4.26`	affected	—
`0.2.5.x before 0.2.5.11`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:torproject:tor::::::::
	cpe:2.3:a:torproject:tor::::::::

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2015-2779	Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle pending-connection resolve states during periods of high DNS load, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

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.

The EPSS score is 0.00451.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://lists.torproject.org/pipermail/tor-talk/2015-March/037281.html
https://trac.torproject.org/projects/tor/ticket/14129

History

No history.

Subscriptions

Torproject Tor

MITRE

Status: PUBLISHED

Assigner: debian

Published: 2020-01-24T17:46:17.000Z

Updated: 2024-08-06T05:24:37.938Z

Reserved: 2015-03-24T00:00:00.000Z

Link: CVE-2015-2689

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-01-24T18:15:12.317

Modified: 2024-11-21T02:27:51.480

Link: CVE-2015-2689

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-20

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