Vulnerability CVE-2017-11600
Published: 2017-07-24

Description:
net/xfrm/xfrm_policy.c in the Linux kernel through 4.12.3, when CONFIG_XFRM_MIGRATE is enabled, does not ensure that the dir value of xfrm_userpolicy_id is XFRM_POLICY_MAX or less, which allows local users to cause a denial of service (out-of-bounds access) or possibly have unspecified other impact via an XFRM_MSG_MIGRATE xfrm Netlink message.

Type:

CWE-125

 (Out-of-bounds Read)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.9/10
10/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Linux -> Linux kernel 

 References:
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
http://seclists.org/bugtraq/2017/Jul/30
http://www.debian.org/security/2017/dsa-3981
http://www.securityfocus.com/bid/99928
https://access.redhat.com/errata/RHSA-2018:1965
https://access.redhat.com/errata/RHSA-2018:2003
https://access.redhat.com/errata/RHSA-2019:1170
https://access.redhat.com/errata/RHSA-2019:1190
https://source.android.com/security/bulletin/pixel/2017-11-01
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