Vulnerability Name:

CVE-2016-9178 (CCN-119405)

Assigned:2016-09-15
Published:2016-09-15
Updated:2016-11-28
Summary:The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel before 4.7.5 does not initialize a certain integer variable, which allows local users to obtain sensitive information from kernel stack memory by triggering failure of a get_user_ex call.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/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
6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
5.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/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): None
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
4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-200
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2016-9178

Source: CCN
Type: Linux Kernel GIT Repository
fix minor infoleak in get_user_ex()

Source: CONFIRM
Type: Issue Tracking, Patch, Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1c109fabbd51863475cd12ac206bdd249aee35af

Source: CONFIRM
Type: Release Notes
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20161104 Re: kernel: fix minor infoleak in get_user_ex()

Source: BID
Type: UNKNOWN
94144

Source: CCN
Type: BID-94144
Linux Kernel CVE-2016-9178 Local Information Disclosure Vulnerability

Source: CONFIRM
Type: Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1391908

Source: XF
Type: UNKNOWN
linux-kernel-cve20169178-info-disc(119405)

Source: CONFIRM
Type: Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/1c109fabbd51863475cd12ac206bdd249aee35af

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2016-9178

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version <= 4.7.4)

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:4.8.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20169178
    V
    		CVE-2016-9178
    2022-09-02
    oval:com.ubuntu.xenial:def:201691780000000
    V
    		CVE-2016-9178 on Ubuntu 16.04 LTS (xenial) - medium.
    2016-11-28
    oval:com.ubuntu.artful:def:20169178000
    V
    		CVE-2016-9178 on Ubuntu 17.10 (artful) - medium.
    2016-11-27
    oval:com.ubuntu.precise:def:20169178000
    V
    		CVE-2016-9178 on Ubuntu 12.04 LTS (precise) - medium.
    2016-11-27
    oval:com.ubuntu.trusty:def:20169178000
    V
    		CVE-2016-9178 on Ubuntu 14.04 LTS (trusty) - medium.
    2016-11-27
    oval:com.ubuntu.xenial:def:20169178000
    V
    		CVE-2016-9178 on Ubuntu 16.04 LTS (xenial) - medium.
    2016-11-27
    BACK
    linux linux kernel *
    linux linux kernel 4.8.2