Vulnerability Name:

CVE-2018-12928 (CCN-145577)

Assigned:2018-04-12
Published:2018-04-12
Updated:2018-08-21
Summary:In the Linux kernel 4.15.0, a NULL pointer dereference was discovered in hfs_ext_read_extent in hfs.ko. This can occur during a mount of a crafted hfs filesystem.
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)
4.9 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: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): None
Integrity (I): None
Availibility (A): High
4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/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): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:4.9 Medium (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
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
2.1 Low (CCN 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
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-476
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-12928

Source: BID
Type: Third Party Advisory, VDB Entry
104593

Source: CCN
Type: BID-104593
Linux Kernel CVE-2018-12928 Local Denial of Service Vulnerability

Source: CCN
Type: Launchpad Bug #1763384
Null-Pointer Deference in hfs.ko

Source: MISC
Type: Issue Tracking, Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1763384

Source: XF
Type: UNKNOWN
linux-kernel-cve201812928-dos(145577)

Source: MISC
Type: Mailing List, Third Party Advisory
https://marc.info/?l=linux-fsdevel&m=152407263325766&w=2

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

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-12928

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:4.15:-:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:canonical:ubuntu_linux:16.04.4:*:*:*:lts:*:*:*

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:4.15.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.xenial:def:2018129280000000
    V
    		CVE-2018-12928 on Ubuntu 16.04 LTS (xenial) - negligible.
    2018-06-28
    oval:com.ubuntu.artful:def:201812928000
    V
    		CVE-2018-12928 on Ubuntu 17.10 (artful) - negligible.
    2018-06-28
    oval:com.ubuntu.xenial:def:201812928000
    V
    		CVE-2018-12928 on Ubuntu 16.04 LTS (xenial) - negligible.
    2018-06-28
    oval:com.ubuntu.disco:def:2018129280000000
    V
    		CVE-2018-12928 on Ubuntu 19.04 (disco) - negligible.
    2018-06-28
    oval:com.ubuntu.bionic:def:201812928000
    V
    		CVE-2018-12928 on Ubuntu 18.04 LTS (bionic) - negligible.
    2018-06-28
    oval:com.ubuntu.cosmic:def:2018129280000000
    V
    		CVE-2018-12928 on Ubuntu 18.10 (cosmic) - negligible.
    2018-06-28
    oval:com.ubuntu.cosmic:def:201812928000
    V
    		CVE-2018-12928 on Ubuntu 18.10 (cosmic) - negligible.
    2018-06-28
    oval:com.ubuntu.bionic:def:2018129280000000
    V
    		CVE-2018-12928 on Ubuntu 18.04 LTS (bionic) - negligible.
    2018-06-28
    oval:com.ubuntu.trusty:def:201812928000
    V
    		CVE-2018-12928 on Ubuntu 14.04 LTS (trusty) - negligible.
    2018-06-28
    BACK
    linux linux kernel 4.15
    canonical ubuntu linux 16.04.4
    linux linux kernel 4.15.0