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CVE-2020-10732

Published: 12 June 2020

A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an attacker with a local account to crash a trivial program and exfiltrate private kernel data.

From the Ubuntu security team

It was discovered that the elf handling code in the Linux kernel did not initialize memory before using it in certain situations. A local attacker could use this to possibly expose sensitive information (kernel memory).

Priority

Low

CVSS 3 base score: 4.4

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-115.116)
eoan Ignored
(was pending \[5.3.0-63.57\] now end-of-life)
focal
Released (5.4.0-40.44)
precise Ignored
(was needs-triage ESM criteria)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.7)
xenial
Released (4.4.0-186.216)
linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1080.84)
eoan Ignored
(was pending \[5.3.0-1031.33\] now end-of-life)
focal
Released (5.4.0-1018.18)
precise Does not exist

trusty
Released (4.4.0-1075.79)
upstream
Released (5.7)
xenial
Released (4.4.0-1111.123)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1032.34~18.04.2)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.4.0-1018.18~18.04.1)
focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial
Released (4.15.0-1080.84~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
eoan Ignored
(was pending \[5.3.0-1033.34\] now end-of-life)
focal
Released (5.4.0-1020.20)
precise Does not exist

trusty
Released (4.15.0-1093.103~14.04.1)
upstream
Released (5.7)
xenial
Released (4.15.0-1093.103~16.04.1)
linux-azure-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1093.103)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1034.35~18.04.1)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.4.0-1020.20~18.04.1)
focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

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

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
eoan Ignored
(was pending \[5.3.0-1031.33\] now end-of-life)
focal
Released (5.4.0-1019.19)
precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial
Released (4.15.0-1081.92~16.04.1)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1081.92)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1032.34~18.04.1)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.4.0-1019.19~18.04.2)
focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

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

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1067.70)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1045.46)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1032.34~18.04.1)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-64.58~18.04.1)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial
Released (4.15.0-115.116~16.04.1)
linux-hwe-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-40.44~18.04.1)
focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

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

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Ignored
(was needs-triage now end-of-life)
linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1072.73)
eoan Ignored
(was pending \[5.3.0-1025.27\] now end-of-life)
focal
Released (5.4.0-1018.18)
precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial
Released (4.4.0-1077.84)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Does not exist

precise Ignored
(was needs-triage ESM criteria)
trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

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

eoan Does not exist

focal Does not exist

precise Does not exist

trusty
Released (4.4.0-186.216~14.04.1)
upstream
Released (5.7)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1094.104)
eoan Ignored
(reached end-of-life)
focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Ignored
(was needs-triage now end-of-life)
linux-oem-5.6
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal
Released (5.6.0-1018.18)
precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1065.70)
eoan Ignored
(reached end-of-life)
focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1051.55)
eoan Ignored
(was pending \[5.3.0-1029.31\] now end-of-life)
focal
Released (5.4.0-1019.19)
precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial
Released (4.15.0-1051.55~16.04.1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1030.32~18.04.1)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.4.0-1019.19~18.04.1)
focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal
Released (5.4.0-1013.13)
precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.4.0-1013.13~18.04.1)
focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1068.72)
eoan Ignored
(was pending \[5.3.0-1029.31\] now end-of-life)
focal Ignored
(was needs-triage now end-of-life)
precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial
Released (4.4.0-1136.145)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1030.32~18.04.2)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal
Released (5.4.0-28.32)
precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1084.92)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.7)
xenial
Released (4.4.0-1140.148)