Description
The tun_chr_poll function in drivers/net/tun.c in the tun subsystem in the Linux kernel 2.6.30 and 2.6.30.1, when the -fno-delete-null-pointer-checks gcc option is omitted, allows local users to gain privileges via vectors involving a NULL pointer dereference and an mmap of /dev/net/tun, a different vulnerability than CVE-2009-1894.
Published: 2009-07-20
Score: 6.9 Medium
EPSS: 1.7% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2009-1892 The tun_chr_poll function in drivers/net/tun.c in the tun subsystem in the Linux kernel 2.6.30 and 2.6.30.1, when the -fno-delete-null-pointer-checks gcc option is omitted, allows local users to gain privileges via vectors involving a NULL pointer dereference and an mmap of /dev/net/tun, a different vulnerability than CVE-2009-1894.
History

Wed, 28 May 2025 14:45:00 +0000

Type Values Removed Values Added
References

Thu, 22 May 2025 04:30:00 +0000


Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T05:27:54.800Z

Reserved: 2009-06-02T00:00:00.000Z

Link: CVE-2009-1897

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2009-07-20T17:30:54.733

Modified: 2026-04-23T00:35:47.467

Link: CVE-2009-1897

cve-icon Redhat

Severity : Important

Publid Date: 2009-04-09T00:00:00Z

Links: CVE-2009-1897 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses