Vulnerability Name:

CVE-2017-14140

Assigned:2017-09-05
Published:2017-08-21
Updated:2018-01-12
Summary:The move_pages system call in mm/migrate.c in the Linux kernel before 4.12.9 doesn't check the effective uid of the target process, enabling a local attacker to learn the memory layout of a setuid executable despite ASLR.
CVSS v3 Severity:5.5 Medium (CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.8 Medium (Temporal CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
5.5 Medium (CCN CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.8 Medium (CCN Temporal CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-200
References:Source: CONFIRM
Type: VENDOR_ADVISORY
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=197e7e521384a23b9e585178f3f11c9fa08274b9

Source: DEBIAN
Type: UNKNOWN
DSA-3981

Source: CONFIRM
Type: VENDOR_ADVISORY
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.9

Source: BID
Type: UNKNOWN
100876

Source: XF
Type: UNKNOWN
linux-kernel-cve201714140-info-disc(131413)

Source: CONFIRM
Type: VENDOR_ADVISORY
https://github.com/torvalds/linux/commit/197e7e521384a23b9e585178f3f11c9fa08274b9

Source: CONFIRM
Type: UNKNOWN
https://source.android.com/security/bulletin/pixel/2018-01-01

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:4.12.8:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:4.12.8:*:*:*:*:*:*:*

  • Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:201714140
    V
    CVE-2017-14140
    2018-01-23
    oval:com.ubuntu.xenial:def:201714140000
    V
    CVE-2017-14140 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-09-05
    oval:com.ubuntu.trusty:def:201714140000
    V
    CVE-2017-14140 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-09-05
    BACK
    linux linux_kernel 4.12.8