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 privileges via vectors involving a NULL pointer dereference and an mmap of /dev/net/tun, a different vulnerability than CVE-2009-1894.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.9 UNKNOWN
LOCAL
MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 87%
VendorProductVersion
linuxlinux_kernel
2.6.30
linuxlinux_kernel
2.6.30:rc1
linuxlinux_kernel
2.6.30:rc2
linuxlinux_kernel
2.6.30:rc3
linuxlinux_kernel
2.6.30:rc4
linuxlinux_kernel
2.6.30:rc5
linuxlinux_kernel
2.6.30:rc6
linuxlinux_kernel
2.6.30:rc7-git6
linuxlinux_kernel
2.6.30.1
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
jaunty
not-affected
intrepid
not-affected
hardy
not-affected
dapper
dne
linux-source-2.6.15
jaunty
dne
intrepid
dne
hardy
dne
dapper
not-affected
Common Weakness Enumeration
References
http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0241.html
http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0246.html
http://article.gmane.org/gmane.linux.network/124939
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3c8a9c63d5fd738c261bd0ceece04d9c8357ca13
http://grsecurity.net/~spender/cheddar_bay.tgz
http://isc.sans.org/diary.html?storyid=6820
http://lkml.org/lkml/2009/7/6/19
http://secunia.com/advisories/35839
http://www.openwall.com/lists/oss-security/2009/07/17/1
http://www.vupen.com/english/advisories/2009/1925
https://bugzilla.redhat.com/show_bug.cgi?id=512284
https://exchange.xforce.ibmcloud.com/vulnerabilities/51803
https://www.redhat.com/en/blog/security-flaws-caused-compiler-optimizations
http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0241.html
http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0246.html
http://article.gmane.org/gmane.linux.network/124939
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3c8a9c63d5fd738c261bd0ceece04d9c8357ca13
http://grsecurity.net/~spender/cheddar_bay.tgz
http://isc.sans.org/diary.html?storyid=6820
http://lkml.org/lkml/2009/7/6/19
http://secunia.com/advisories/35839
http://www.openwall.com/lists/oss-security/2009/07/17/1
http://www.vupen.com/english/advisories/2009/1925
https://bugzilla.redhat.com/show_bug.cgi?id=512284
https://exchange.xforce.ibmcloud.com/vulnerabilities/51803
https://www.redhat.com/en/blog/security-flaws-caused-compiler-optimizations