CVE-2021-34550 - Vulnerability Details - OpenCVE

Description

An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-006. The v3 onion service descriptor parsing allows out-of-bounds memory access, and a client crash, via a crafted onion service descriptor

Published: 2021-06-29

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

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 vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
Debian DSA	DSA-4932-1	tor security update
EUVD	EUVD-2021-21202	An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-006. The v3 onion service descriptor parsing allows out-of-bounds memory access, and a client crash, via a crafted onion service descriptor
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 0.00832.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://blog.torproject.org/node/2041
https://gitlab.torproject.org/tpo/core/tor/-/issues/40392
https://security.gentoo.org/glsa/202107-25

History

No history.

Subscriptions

Torproject Tor

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-06-29T11:11:45.000Z

Updated: 2024-08-04T00:12:50.393Z

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

Link: CVE-2021-34550

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-06-29T12:15:08.670

Modified: 2024-11-21T06:10:39.317

Link: CVE-2021-34550

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-119

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