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CVE
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CVE-2009-1897

Date: (C)2009-07-20   (M)2017-08-18 


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.

CVSS Score: 6.9Access Vector: LOCAL
Exploit Score: 3.4Access Complexity: MEDIUM
Impact Score: 10.0Authentication: NONE
 Confidentiality: COMPLETE
 Integrity: COMPLETE
 Availability: COMPLETE





Reference:
http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0241.html
http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0246.html
SECUNIA-35839
ADV-2009-1925
http://lkml.org/lkml/2009/7/6/19
http://article.gmane.org/gmane.linux.network/124939
http://www.openwall.com/lists/oss-security/2009/07/17/1
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3c8a9c63d5fd738c261bd0ceece04d9c8357ca13
http://grsecurity.net/~spender/cheddar_bay.tgz
http://isc.sans.org/diary.html?storyid=6820
https://bugzilla.redhat.com/show_bug.cgi?id=512284
linux-kernel-tunchrpoll-code-execution(51803)

CPE    7
cpe:/o:linux:linux_kernel:2.6.30:rc6
cpe:/o:linux:linux_kernel:2.6.30
cpe:/o:linux:linux_kernel:2.6.30.1
cpe:/o:linux:linux_kernel:2.6.30:rc1
...
CWE    1
CWE-119
OVAL    10
oval:org.secpod.oval:def:101648
oval:org.secpod.oval:def:101858
oval:org.secpod.oval:def:101544
oval:org.secpod.oval:def:101657
...

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