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CVE-2020-0067

Published: 17 April 2020

In f2fs_xattr_generic_list of xattr.c, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not required for exploitation.Product: Android. Versions: Android kernel. Android ID: A-120551147.

From the Ubuntu security team

It was discovered that the F2FS file system implementation in the Linux kernel did not properly perform bounds checking on xattrs in some situations. A local attacker could possibly use this to expose sensitive information (kernel memory).

Priority

Medium

CVSS 3 base score: 4.4

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-37.41)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-106.107)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-190.220)
Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needed ESM criteria)
Patches:
Introduced by af48b85b8cd3fbb12c9b6759c16db6d69c0b03da
Fixed by 688078e7f36c293dae25b338ddc9e0a2790f6e06
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-1015.15)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1073.77)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1114.127)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.4.0-1078.82)
linux-aws-5.0
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1023.25~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.4.0-1018.18~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1073.77~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-1016.16)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1089.99~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.15.0-1089.99~14.04.1)
linux-azure-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1089.99)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1028.29~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.4.0-1020.20~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-1015.15)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1077.87~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1077.87)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1026.28~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.4.0-1019.19~18.04.2)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1063.66)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.0.0-1042.43)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1026.28~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-59.53~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-106.107~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.4.0-37.41~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(was needs-triage now end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-1015.15)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1067.68)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1080.87)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.4.0-190.220~14.04.1)
linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1087.97)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(was needs-triage now end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oem-5.6
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.6.0-1007.7)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.0.0-1059.64)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-1015.15)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1045.49)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1045.49~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle-5.0
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1024.26~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.4.0-1019.19~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-1012.12)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.4.0-1013.13~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Ignored
(was needs-triage now end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1063.67)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1139.148)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi2-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1027.29~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-27.31)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (5.5~rc1)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1080.87)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1143.152)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist