Vulnerability Name:

CVE-2019-18806 (CCN-171179)

Assigned:2019-10-04
Published:2019-10-04
Updated:2020-08-24
Summary:A memory leak in the ql_alloc_large_buffers() function in drivers/net/ethernet/qlogic/qla3xxx.c in the Linux kernel before 5.3.5 allows local users to cause a denial of service (memory consumption) by triggering pci_dma_mapping_error() failures, aka CID-1acb8f2a7a9f.
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
5.5 Medium (CCN 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 (CCN 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
CVSS v2 Severity:2.1 Low (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
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-401
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-18806

Source: MISC
Type: Mailing List, Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.5

Source: XF
Type: UNKNOWN
linux-kernel-cve201918806-dos(171179)

Source: MISC
Type: Mailing List, Patch, Third Party Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1acb8f2a7a9f10543868ddd737e37424d5c36cf4

Source: CCN
Type: Linux Kernel GIT Repository
net: qlogic: Fix memory leak in ql_alloc_large_buffers

Source: CCN
Type: IBM Security Bulletin 3177579 (Spectrum Protect Plus)
Multiple vulnerabilities in Linux Kernel affect IBM Spectrum Protect Plus

Source: CCN
Type: IBM Security Bulletin 6326019 (Netezza Host Management)
Publicly disclosed vulnerability from Kernel affects IBM Netezza Host Management

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2019-18806

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version < 5.3.5)

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:5.3:-:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:5.3.2:*:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:5.3.4:*:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:5.3.3:*:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:5.3.1:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:spectrum_protect_plus:10.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:spectrum_protect_plus:10.1.5:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2019188060000000
    V
    		CVE-2019-18806 on Ubuntu 19.04 (disco) - low.
    2019-11-07
    oval:com.ubuntu.bionic:def:2019188060000000
    V
    		CVE-2019-18806 on Ubuntu 18.04 LTS (bionic) - low.
    2019-11-07
    oval:com.ubuntu.xenial:def:2019188060000000
    V
    		CVE-2019-18806 on Ubuntu 16.04 LTS (xenial) - low.
    2019-11-07
    BACK
    linux linux kernel *
    linux linux kernel 5.3
    linux linux kernel 5.3.2
    linux linux kernel 5.3.4
    linux linux kernel 5.3.3
    linux linux kernel 5.3.1
    ibm spectrum protect plus 10.1.0
    ibm spectrum protect plus 10.1.5