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01 Record

CVE-2009-1897

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

UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector
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02 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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.52% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 74.0% of scored records. A rank, not a probability.
NVD base score
The NVD has published no score for this record
NVD CVSS vector
No NVD score to derive
NVD analysis status
Modified. NVD last modified this record on 2026-06-16.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2009-07-20 17:00Z17 YR AGO
Last updated
2024-08-07 05:27Z2 YR AGO
Reserved
2009-06-02
Assigning CNA
redhat
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
Data version
5.1
Document digest
fa9eceac6d9579788d0da414f8e9fc09cfd4f19ffbe4097a184a005bb875c728

05 Affected products

VendorProductVersionsPlatforms
linuxlinux_kernelNot specified—

06 References