Vulnerability CVE-2017-7487
Published: 2017-05-14   Modified: 2017-05-15

Description:
The ipxitf_ioctl function in net/ipx/af_ipx.c in the Linux kernel through 4.11.1 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a failed SIOCGIFADDR ioctl call for an IPX interface.

Type:

CWE-416

 (Use After Free)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Linux -> Linux kernel 

 References:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee0d8d8482345ff97a75a7d747efc309f13b0d80
http://www.debian.org/security/2017/dsa-3886
http://www.securityfocus.com/bid/98439
http://www.securitytracker.com/id/1039237
https://bugzilla.redhat.com/show_bug.cgi?id=1447734
https://github.com/torvalds/linux/commit/ee0d8d8482345ff97a75a7d747efc309f13b0d80
https://patchwork.ozlabs.org/patch/757549/
https://source.android.com/security/bulletin/2017-09-01
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