CVE-2009-1897
Severity CVSS v4.0:
Pending analysis
Type:
CWE-119
Buffer Errors
Publication date:
20/07/2009
Last modified:
09/04/2025
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.
Impact
Base Score 2.0
6.90
Severity 2.0
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:2.6.30:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.30:rc1:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.30:rc2:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.30:rc3:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.30:rc4:x86_32:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.30:rc5:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.30:rc6:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.30:rc7-git6:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.30.1:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- 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%3Dcommit%3Bh%3D3c8a9c63d5fd738c261bd0ceece04d9c8357ca13
- 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%3Dcommit%3Bh%3D3c8a9c63d5fd738c261bd0ceece04d9c8357ca13
- 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