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CVE-2019-18806

Published: 7 November 2019

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.

Priority

Low

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1054.56)
disco Ignored
(end of life, was pending)
eoan
Released (5.3.0-1007.8)
focal Not vulnerable
(5.4.0-1005.5)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.4~rc2)
xenial
Released (4.4.0-1098.109)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-1021.24~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1007.8~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-69.78)
disco
Released (5.0.0-35.38)
eoan
Released (5.3.0-22.24)
focal Not vulnerable
(5.4.0-9.12)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.4~rc2)
xenial
Released (4.4.0-168.197)
Patches:
Introduced by

0f8ab89e825f8c9f1c84c558ad7e2e4006aee0d3

Fixed by 1acb8f2a7a9f10543868ddd737e37424d5c36cf4
linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.15.0-1054.56~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1025.27~18.04.1)
disco
Released (5.0.0-1025.27)
eoan
Released (5.3.0-1007.8)
focal Not vulnerable
(5.4.0-1006.6)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.4~rc2)
xenial
Released (4.15.0-1063.68)
linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was needs-triage)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Ignored
(end of standard support, was needs-triage)
linux-gcp
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1025.26~18.04.1)
disco Ignored
(end of life, was pending)
eoan
Released (5.3.0-1008.9)
focal Not vulnerable
(5.4.0-1005.5)
trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.15.0-1049.52)
linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1008.9~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was needs-triage)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1048.51)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1025.26~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1011.12~18.04.1)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-35.38~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.15.0-69.78~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was pending)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Ignored
(end of life, was needs-triage)
linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1050.50)
disco Ignored
(end of life, was pending)
eoan
Released (5.3.0-1007.8)
focal Not vulnerable
(5.4.0-1004.4)
trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.4.0-1062.69)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.4~rc2)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1063.72)
disco Ignored
(end of life)
eoan
Released (4.15.0-1063.72)
focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Ignored
(end of standard support, was needs-triage)
linux-oem-5.6
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Not vulnerable
(5.4.0-1002.4)
trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1027.31)
disco Ignored
(end of life)
eoan
Released (5.0.0-1027.31)
focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1029.32)
disco Ignored
(end of life, was pending)
eoan
Released (5.3.0-1006.7)
focal Not vulnerable
(5.4.0-1005.5)
trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.15.0-1029.32~16.04.1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-1007.12~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1011.12~18.04.1)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1050.54)
disco Ignored
(end of life, was pending)
eoan
Released (5.3.0-1012.14)
focal Ignored
(end of life, was needed)
trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.4.0-1125.134)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1017.19~18.04.1)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1067.74)
disco Ignored
(end of life, was pending)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.4.0-1129.137)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H