CVE-2021-43413

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Published Nov 7, 2021 CVSS 3.1 · 8.8 High EPSS 2.0% KEV · Not listed

Description

An issue was discovered in GNU Hurd before 0.9 20210404-9. A single pager port is shared among everyone who mmaps a file, allowing anyone to modify any files that they can read. This can be trivially exploited to get full root access.

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 [-]

cpe:2.3:a:gnu:hurd:*:*:*:*:*:*:*:*

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
EUVD	EUVD-2021-30348	An issue was discovered in GNU Hurd before 0.9 20210404-9. A single pager port is shared among everyone who mmaps a file, allowing anyone to modify any files that they can read. This can be trivially exploited to get full root access.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

Exploit prediction score: 2.0% (1.973% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://lists.gnu.org/archive/html/bug-hurd/2002-11/msg00263.html
https://lists.gnu.org/archive/html/bug-hurd/2005-06/msg00191.html
https://lists.gnu.org/archive/html/bug-hurd/2021-05/msg00079.html
https://www.mail-archive.com/bug-hurd%40gnu.org/msg32113.html

History

No history.

Subscriptions

Gnu Hurd

Weaknesses

NVD-CWE-noinfo

Sources

CVE record Updated: Aug 4, 2024, 3:55 AM

Status: PUBLISHED
Assigner: mitre
Published: Nov 7, 2021, 5:06 PM
Updated: Aug 4, 2024, 3:55 AM
Reserved: Nov 7, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:10 AM

Status: Modified
Published: Nov 7, 2021, 6:15 PM
Modified: Jun 17, 2026, 4:10 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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