6.9

CVE-2009-1897

Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version2.6.30
Linux ≫ Linux Kernel Version2.6.30 Updaterc1
Linux ≫ Linux Kernel Version2.6.30 Updaterc2
Linux ≫ Linux Kernel Version2.6.30 Updaterc3
Linux ≫ Linux Kernel Version2.6.30 Updaterc4 Editionx86_32
Linux ≫ Linux Kernel Version2.6.30 Updaterc5
Linux ≫ Linux Kernel Version2.6.30 Updaterc6
Linux ≫ Linux Kernel Version2.6.30 Updaterc7-git6
Linux ≫ Linux Kernel Version2.6.30.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.52% 0.718
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 6.9 3.4 10
AV:L/AC:M/Au:N/C:C/I:C/A:C
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

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
Patch
http://isc.sans.org/diary.html?storyid=6820
Exploit
http://lkml.org/lkml/2009/7/6/19
Exploit
http://secunia.com/advisories/35839
Vendor Advisory
http://www.openwall.com/lists/oss-security/2009/07/17/1
http://www.vupen.com/english/advisories/2009/1925
Patch
Vendor Advisory
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