National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-7184 Detail

Current Description

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.

Source:  MITRE
Description Last Modified:  03/29/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.8


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.2 HIGH
Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Provides administrator access
Allows unauthorized disclosure of information
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=677e806da4d916052585301785d847c3b3e6186a
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f843ee6dd019bcece3e74e76ad9df0155655d0df
http://openwall.com/lists/oss-security/2017/03/29/2
http://www.eweek.com/security/ubuntu-linux-falls-on-day-1-of-pwn2own-hacking-competition Technical Description Third Party Advisory
http://www.securityfocus.com/bid/97018 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038166
https://access.redhat.com/errata/RHSA-2017:2918
https://access.redhat.com/errata/RHSA-2017:2930
https://access.redhat.com/errata/RHSA-2017:2931
https://blog.trendmicro.com/results-pwn2own-2017-day-one/ Technical Description Third Party Advisory
https://github.com/torvalds/linux/commit/677e806da4d916052585301785d847c3b3e6186a
https://github.com/torvalds/linux/commit/f843ee6dd019bcece3e74e76ad9df0155655d0df
https://source.android.com/security/bulletin/2017-05-01
https://twitter.com/thezdi/status/842126074435665920 Press/Media Coverage

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-7184
NVD Published Date:
03/19/2017
NVD Last Modified:
12/06/2017