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...
- Published
- Jul 20, 2009
- Updated
- Aug 7, 2024
- Assigning CNA
- redhat
- Evidence observed
- Jun 17, 2009
Primary CVSS
nvd · CVSS 2.0
AV:L/AC:M/Au:N/C:C/I:C/A:CLow · next 30 days
- Percentile
- 73.1%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
2spender · linux · Jul 17, 2009
Christian Borntraeger · linux · Jun 17, 2009
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