Vulnerability Name:

CVE-2018-11508 (CCN-143910)

Assigned:2018-05-11
Published:2018-05-11
Updated:2019-03-27
Summary:The compat_get_timex function in kernel/compat.c in the Linux kernel before 4.16.9 allows local users to obtain sensitive information from kernel memory via adjtimex.
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)
5.0 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:P/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
4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
3.6 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/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): Low
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
2.1 Low (CCN 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
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-200
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2018-11508

Source: MISC
Type: Patch, Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0a0b98734479aa5b3c671d5190e86273372cab95

Source: BID
Type: Third Party Advisory, VDB Entry
104292

Source: CCN
Type: BID-104292
Linux Kernel 'kernel/compat.c' Local Information Disclosure Vulnerability

Source: MISC
Type: Exploit, Issue Tracking, Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=1574

Source: XF
Type: UNKNOWN
linux-kernel-cve201811508-info-disc(143910)

Source: CCN
Type: Linux Kernel GIT Repository
compat: fix 4-byte infoleak via uninitialized struct field

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/0a0b98734479aa5b3c671d5190e86273372cab95

Source: CCN
Type: Packet Storm Security [01-20-2019]
Linux Kernel 4.13 compat_get_timex() Kernel Pointer Leak

Source: UBUNTU
Type: Third Party Advisory
USN-3695-1

Source: UBUNTU
Type: Third Party Advisory
USN-3695-2

Source: UBUNTU
Type: Third Party Advisory
USN-3697-1

Source: UBUNTU
Type: Third Party Advisory
USN-3697-2

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [01-21-2019]

Source: EXPLOIT-DB
Type: Exploit, Third Party Advisory, VDB Entry
46208

Source: MISC
Type: Release Notes, Vendor Advisory
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.9

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-11508

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version < 4.16.9)

    • Configuration 2:
  • cpe:/o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:4.16.8:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.xenial:def:2018115080000000
    V
    		CVE-2018-11508 on Ubuntu 16.04 LTS (xenial) - low.
    2018-05-28
    oval:com.ubuntu.artful:def:201811508000
    V
    		CVE-2018-11508 on Ubuntu 17.10 (artful) - low.
    2018-05-28
    oval:com.ubuntu.xenial:def:201811508000
    V
    		CVE-2018-11508 on Ubuntu 16.04 LTS (xenial) - low.
    2018-05-28
    oval:com.ubuntu.bionic:def:201811508000
    V
    		CVE-2018-11508 on Ubuntu 18.04 LTS (bionic) - low.
    2018-05-28
    oval:com.ubuntu.cosmic:def:2018115080000000
    V
    		CVE-2018-11508 on Ubuntu 18.10 (cosmic) - low.
    2018-05-28
    oval:com.ubuntu.cosmic:def:201811508000
    V
    		CVE-2018-11508 on Ubuntu 18.10 (cosmic) - low.
    2018-05-28
    oval:com.ubuntu.bionic:def:2018115080000000
    V
    		CVE-2018-11508 on Ubuntu 18.04 LTS (bionic) - low.
    2018-05-28
    oval:com.ubuntu.trusty:def:201811508000
    V
    		CVE-2018-11508 on Ubuntu 14.04 LTS (trusty) - low.
    2018-05-28
    BACK
    linux linux kernel *
    canonical ubuntu linux 16.04
    canonical ubuntu linux 17.10
    canonical ubuntu linux 18.04
    linux linux kernel 4.16.8