CVE-2009-1897

Linux kernel 2.6.30-2.6.30.1 - Privilege Escalation

Title source: llm
STIX 2.1

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.

Exploits (2)

exploitdb WORKING POC VERIFIED
by spender · textlocallinux
https://www.exploit-db.com/exploits/9191
exploitdb WRITEUP VERIFIED
by Christian Borntraeger · textdoslinux
https://www.exploit-db.com/exploits/33088

References (13)

Core 13
Core References
Patch, Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2009/1925
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/07/17/1
Third Party Advisory mailing-list x_refsource_fulldisc
http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0246.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/51803
Various Sources mailing-list x_refsource_mlist
http://article.gmane.org/gmane.linux.network/124939
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/35839
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=512284
Exploit mailing-list x_refsource_mlist
http://lkml.org/lkml/2009/7/6/19
Third Party Advisory mailing-list x_refsource_fulldisc
http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0241.html

Scores

EPSS 0.0171
EPSS Percentile 82.4%

Details

CWE
CWE-119
Status published
Products (2)
linux/linux_kernel 2.6.30 (8 CPE variants)
linux/linux_kernel 2.6.30.1
Published Jul 20, 2009
Tracked Since Feb 18, 2026