Vulnerability Name:

CVE-2017-8071 (CCN-125369)

Assigned:2017-04-16
Published:2017-04-16
Updated:2017-04-28
Summary:drivers/hid/hid-cp2112.c in the Linux kernel 4.9.x before 4.9.9 uses a spinlock without considering that sleeping is possible in a USB HID request callback, which allows local users to cause a denial of service (deadlock) via unspecified vectors.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/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): None
Integrity (I): None
Availibility (A): High
6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/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): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-404
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-8071

Source: CONFIRM
Type: Release Notes, Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.9

Source: CCN
Type: oss-sec Mailing List, Sun, 16 Apr 2017 16:25:38 -0400
Silently (or obliviously) partially-fixed CONFIG_STRICT_DEVMEM bypass

Source: MLIST
Type: Mailing List, Patch, Third Party Advisory
[oss-security] 20170416 Silently (or obliviously) partially-fixed CONFIG_STRICT_DEVMEM bypass

Source: BID
Type: Third Party Advisory, VDB Entry
97991

Source: CCN
Type: BID-97991
Linux Kernel 'drivers/hid/hid-cp2112.c' Local Denial of Service Vulnerability

Source: XF
Type: UNKNOWN
linux-kernel-cve20178071-dos(125369)

Source: CCN
Type: Linux Kernel GIT Repository
HID: cp2112: fix sleep-while-atomic

Source: CONFIRM
Type: Patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7a7b5df84b6b4e5d599c7289526eed96541a0654

Source: CONFIRM
Type: Patch
https://github.com/torvalds/linux/commit/7a7b5df84b6b4e5d599c7289526eed96541a0654

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2017-8071

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:4.9:-:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.9.1:*:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.9.2:*:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.9.3:*:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.9.4:*:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.9.5:*:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.9.6:*:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.9.8:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:4.9.8:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.precise:def:20178071000
    V
    		CVE-2017-8071 on Ubuntu 12.04 LTS (precise) - medium.
    2017-04-23
    oval:com.ubuntu.trusty:def:20178071000
    V
    		CVE-2017-8071 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-04-23
    oval:com.ubuntu.xenial:def:20178071000
    V
    		CVE-2017-8071 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-04-23
    oval:com.ubuntu.xenial:def:201780710000000
    V
    		CVE-2017-8071 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-04-23
    BACK
    linux linux kernel 4.9
    linux linux kernel 4.9.1
    linux linux kernel 4.9.2
    linux linux kernel 4.9.3
    linux linux kernel 4.9.4
    linux linux kernel 4.9.5
    linux linux kernel 4.9.6
    linux linux kernel 4.9.8
    linux linux kernel 4.9.8