Heap overflow

2017-03-1918:59:00

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www.prio-n.com

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.001 Low

EPSS

Percentile

42.2%

JSON

The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel through 4.10.6 does not validate certain size data after an XFRM_MSG_NEWAE update, which allows local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability, as demonstrated during a Pwn2Own competition at CanSecWest 2017 for the Ubuntu 16.10 linux-image-* package 4.8.0.41.52.

CPENameOperatorVersion
linux_kerneleq4.8
linux_kernellt3.2.89
linux_kernelge3.17
linux_kernellt3.18.49
linux_kernelge3.13
linux_kernellt3.16.44
linux_kernelge3.3
linux_kernellt3.10.106
linux_kernelge3.19
linux_kernellt4.1.49

Name	Operator	Version
linux_kernel	eq	4.8
linux_kernel	lt	3.2.89
linux_kernel	ge	3.17
linux_kernel	lt	3.18.49
linux_kernel	ge	3.13
linux_kernel	lt	3.16.44
linux_kernel	ge	3.3
linux_kernel	lt	3.10.106
linux_kernel	ge	3.19
linux_kernel	lt	4.1.49