CVE-2009-1897
23Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendepss 1.5%
from disclosure to weapon0 days
Published on NVDJul 20
1st PoCJun 17
exploitation probability
1.5%top 28% of all CVEs
observed exploitation
nono source reports it
2 public exploit(s)
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.
Affected products
n/a · n/apublic PoCs found — 2✓ VexDay Proof
exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/33088exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/9191⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0241.htmlhttp://archives.neohapsis.com/archives/fulldisclosure/2009-07/0246.htmlhttp://article.gmane.org/gmane.linux.network/124939http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3c8a9c63d5fd738c261bd0ceece04d9c8357ca13http://grsecurity.net/~spender/cheddar_bay.tgzhttp://isc.sans.org/diary.html?storyid=6820http://lkml.org/lkml/2009/7/6/19https://bugzilla.redhat.com/show_bug.cgi?id=512284http://secunia.com/advisories/35839https://exchange.xforce.ibmcloud.com/vulnerabilities/51803https://www.redhat.com/en/blog/security-flaws-caused-compiler-optimizationshttp://www.openwall.com/lists/oss-security/2009/07/17/1