CVE-2009-1897

CVSS V2 Medium 6.9 CVSS V3 None
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.
Overview
  • CVE ID
  • CVE-2009-1897
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2009-07-20T17:30:54
  • Last Modified Date
  • 2023-02-13T02:20:14
Weakness Enumerations
CWE URL
CWE-119 http://cwe.mitre.org/data/definitions/119.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:2.6.30:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:2.6.30:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:2.6.30:rc2:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:2.6.30:rc3:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:2.6.30:rc4:x86_32:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:2.6.30:rc5:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:2.6.30:rc6:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:2.6.30:rc7-git6:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:2.6.30.1:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 6.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.4
  • Impact Score
  • 10
References
Reference URL Reference Tags
http://lkml.org/lkml/2009/7/6/19 Exploit
http://grsecurity.net/~spender/cheddar_bay.tgz Patch
https://bugzilla.redhat.com/show_bug.cgi?id=512284
http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0241.html
http://isc.sans.org/diary.html?storyid=6820 Exploit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3c8a9c63d5fd738c261bd0ceece04d9c8357ca13 Exploit Patch Vendor Advisory
http://article.gmane.org/gmane.linux.network/124939
http://secunia.com/advisories/35839 Vendor Advisory
http://www.openwall.com/lists/oss-security/2009/07/17/1
http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0246.html
http://www.vupen.com/english/advisories/2009/1925 Patch Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/51803
https://www.redhat.com/en/blog/security-flaws-caused-compiler-optimizations
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2009-1897
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1897
History
Created Old Value New Value Data Type Notes
2022-05-10 09:01:02 Added to TrackCVE
2023-02-13 03:03:08 2023-02-13T02:20:14 CVE Modified Date updated