Vulnerability Name:

CVE-2017-8070 (CCN-125359)

Assigned:2017-04-16
Published:2017-04-16
Updated:2017-04-28
Summary:drivers/net/usb/catc.c in the Linux kernel 4.9.x before 4.9.11 interacts incorrectly with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash or memory corruption) or possibly have unspecified other impact by leveraging use of more than one virtual page for a DMA scatterlist.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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): High
Integrity (I): High
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:7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
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-119
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-8070

Source: CONFIRM
Type: Release Notes, Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11

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
98011

Source: CCN
Type: BID-98011
Linux Kernel 'drivers/net/usb/catc.c' Local Denial of Service Vulnerability

Source: XF
Type: UNKNOWN
linux-kernel-cve20178070-dos(125359)

Source: CCN
Type: Linux Kernel GIT Repository
catc: Use heap buffer for memory size test

Source: CONFIRM
Type: Patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2d6a0e9de03ee658a9adc3bfb2f0ca55dff1e478

Source: CONFIRM
Type: Patch
https://github.com/torvalds/linux/commit/2d6a0e9de03ee658a9adc3bfb2f0ca55dff1e478

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:*:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.9.9:*:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.9.10:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:4.9.10:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.precise:def:20178070000
    V
    		CVE-2017-8070 on Ubuntu 12.04 LTS (precise) - medium.
    2017-04-23
    oval:com.ubuntu.trusty:def:20178070000
    V
    		CVE-2017-8070 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-04-23
    oval:com.ubuntu.xenial:def:20178070000
    V
    		CVE-2017-8070 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-04-23
    oval:com.ubuntu.xenial:def:201780700000000
    V
    		CVE-2017-8070 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 4.9.9
    linux linux kernel 4.9.10
    linux linux kernel 4.9.10