CVE-2021-43413
HIGH
8.8
CVSS Score
Published: November 7, 2021 at 05:06 PM UTC
Updated: June 17, 2026 at 04:10 AM UTC
1 product affected across 1 vendorHurd
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Severity
HIGH8.8
Exploit prediction
EPSS 2%
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
x_refsource_MISCMailing ListVendor Advisory
Source: [email protected]
https://lists.gnu.org/archive/html/bug-hurd/2002-11/msg00263.htmlx_refsource_MISCMailing ListVendor Advisory
Source: [email protected]
https://lists.gnu.org/archive/html/bug-hurd/2005-06/msg00191.htmlx_refsource_MISCExploitMailing ListVendor Advisory
Source: [email protected]
https://lists.gnu.org/archive/html/bug-hurd/2021-05/msg00079.htmlx_refsource_MISC
Source: [email protected]
https://www.mail-archive.com/bug-hurd%40gnu.org/msg32113.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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