CVE-2021-34548 - Vulnerability Details - OpenCVE

Description

An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-003. An attacker can forge RELAY_END or RELAY_RESOLVED to bypass the intended access control for ending a stream.

Published: 2021-06-29

Score: 7.5 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

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

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
Debian DSA	DSA-4932-1	tor security update
EUVD	EUVD-2021-21200	An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-003. An attacker can forge RELAY_END or RELAY_RESOLVED to bypass the intended access control for ending a stream.
Ubuntu USN	USN-5036-1	Tor vulnerabilities

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 0.00086.

Key SSVC decision points have not yet been added.

References

Link	Providers
http://packetstormsecurity.com/files/163510/Tor-Half-Closed-Connection-Stream-Confusion.html
https://blog.torproject.org/node/2041
https://gitlab.torproject.org/tpo/core/tor/-/issues/40389
https://security.gentoo.org/glsa/202107-25

History

No history.

Subscriptions

Torproject Tor

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-06-29T11:00:16.000Z

Updated: 2024-08-04T00:12:50.422Z

Reserved: 2021-06-10T00:00:00.000Z

Link: CVE-2021-34548

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-06-29T11:15:07.883

Modified: 2024-11-21T06:10:38.977

Link: CVE-2021-34548

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-290

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