Vulnerability Name:

CVE-2018-5995 (CCN-148122)

Assigned:2018-08-06
Published:2018-08-06
Updated:2019-05-28
Summary:The pcpu_embed_first_chunk function in mm/percpu.c in the Linux kernel through 4.14.14 allows local users to obtain sensitive address information by reading dmesg data from a "pages/cpu" printk 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)
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:U/RC:R)
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)
3.7 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:U/RC:R)
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-2018-5995

Source: BID
Type: Third Party Advisory, VDB Entry
105049

Source: CCN
Type: BID-105049
Linux Kernel 'mm/percpu.c' Local Information Disclosure Vulnerability

Source: XF
Type: UNKNOWN
linux-kernel-cve20185995-info-disc(148122)

Source: CCN
Type: GitHub Web site
CVE-2018-5995.md

Source: MISC
Type: Third Party Advisory
https://github.com/johnsonwangqize/cve-linux/blob/master/CVE-2018-5995.md

Source: CCN
Type: Linux Kernel Web site
The Linux Kernel Archives

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20190528 [SECURITY] [DLA 1799-1] linux security update

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20190528 [SECURITY] [DLA 1799-2] linux security update

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20190814 [SECURITY] [DLA 1885-1] linux-4.9 security update

Source: CCN
Type: Packet Storm Security [08-23-2018]
Linux percpu Race Condition

Source: BUGTRAQ
Type: UNKNOWN
20190813 [SECURITY] [DSA 4497-1] linux security update

Source: DEBIAN
Type: UNKNOWN
DSA-4497

Source: CCN
Type: IBM Security Bulletin 1284100 (Vyatta 5600)
Vyatta 5600 vRouter Software Patches - Release 1801-ze

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version <= 4.14.14)

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:4.14.14:*:*:*:*:*:*:*
  • AND
  • cpe:/o:ibm:virtual_router_appliance_firmware:vyatta_5600:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:201859950000000
    V
    		CVE-2018-5995 on Ubuntu 19.04 (disco) - low.
    2018-08-07
    oval:com.ubuntu.bionic:def:20185995000
    V
    		CVE-2018-5995 on Ubuntu 18.04 LTS (bionic) - low.
    2018-08-07
    oval:com.ubuntu.cosmic:def:201859950000000
    V
    		CVE-2018-5995 on Ubuntu 18.10 (cosmic) - low.
    2018-08-07
    oval:com.ubuntu.cosmic:def:20185995000
    V
    		CVE-2018-5995 on Ubuntu 18.10 (cosmic) - low.
    2018-08-07
    oval:com.ubuntu.bionic:def:201859950000000
    V
    		CVE-2018-5995 on Ubuntu 18.04 LTS (bionic) - low.
    2018-08-07
    oval:com.ubuntu.trusty:def:20185995000
    V
    		CVE-2018-5995 on Ubuntu 14.04 LTS (trusty) - low.
    2018-08-07
    oval:com.ubuntu.xenial:def:201859950000000
    V
    		CVE-2018-5995 on Ubuntu 16.04 LTS (xenial) - low.
    2018-08-07
    oval:com.ubuntu.xenial:def:20185995000
    V
    		CVE-2018-5995 on Ubuntu 16.04 LTS (xenial) - low.
    2018-08-07
    BACK
    linux linux kernel *
    linux linux kernel 4.14.14
    ibm virtual router appliance firmware vyatta_5600