Vulnerability Name:

CVE-2019-15923 (CCN-166471)

Assigned:2019-04-04
Published:2019-04-04
Updated:2019-10-04
Summary:An issue was discovered in the Linux kernel before 5.0.9. There is a NULL pointer dereference for a cd data structure if alloc_disk fails in drivers/block/paride/pf.c.
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
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
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
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
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-2019-15923

Source: MISC
Type: Mailing List, Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.9

Source: XF
Type: UNKNOWN
linux-kernel-cve201915923-dos(166471)

Source: CCN
Type: Linux Kernel GIT Repository
paride/pcd: Fix potential NULL pointer dereference and mem leak

Source: MISC
Type: Exploit, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/f0d1762554014ce0ae347b9f0d088f2c157c8c72

Source: CONFIRM
Type: UNKNOWN
https://security.netapp.com/advisory/ntap-20191004-0001/

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version < 5.0.9)

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:5.0.8:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2019159230000000
    V
    		CVE-2019-15923 on Ubuntu 19.04 (disco) - medium.
    2019-09-04
    oval:com.ubuntu.bionic:def:2019159230000000
    V
    		CVE-2019-15923 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-09-04
    oval:com.ubuntu.xenial:def:2019159230000000
    V
    		CVE-2019-15923 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-09-04
    BACK
    linux linux kernel *
    linux linux kernel 5.0.8