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CVE-2016-10905

Published: 18 August 2019

An issue was discovered in fs/gfs2/rgrp.c in the Linux kernel before 4.8. A use-after-free is caused by the functions gfs2_clear_rgrpd and read_rindex_entry.

From the Ubuntu Security Team

It was discovered that a race condition existed in the GFS2 file system in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash).

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.13.0-16.19)
disco Not vulnerable
(4.18.0-10.11)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (4.8~rc1)
xenial
Released (4.4.0-165.193)
Patches:
Introduced by

c1ac539ed43f273cd4d92bf7350ffd783b920184

Fixed by 36e4ad0316c017d5b271378ed9a1c9a4b77fab5f
linux-aws
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
disco Not vulnerable
(4.18.0-1002.3)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (4.8~rc1)
xenial
Released (4.4.0-1095.106)
linux-aws-hwe
Launchpad, Ubuntu, Debian
disco Does not exist

trusty Does not exist

upstream
Released (4.8~rc1)
xenial Not vulnerable
(4.15.0-1030.31~16.04.1)
bionic Does not exist

linux-azure
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.2)
disco Not vulnerable
(4.18.0-1003.3)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (4.8~rc1)
xenial Not vulnerable
(4.11.0-1009.9)
linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.2)
disco Does not exist

trusty Does not exist

upstream
Released (4.8~rc1)
xenial Not vulnerable
(4.11.0-1009.9)
linux-gcp
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
disco Not vulnerable
(4.18.0-1002.3)
trusty Does not exist

upstream
Released (4.8~rc1)
xenial Not vulnerable
(4.10.0-1004.4)
linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
disco Does not exist

trusty Does not exist

upstream
Released (4.8~rc1)
xenial Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1030.32)
disco Does not exist

trusty Does not exist

upstream
Released (4.8~rc1)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-1011.11~18.04.1)
disco Does not exist

trusty Does not exist

upstream
Released (4.8~rc1)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.18.0-13.14~18.04.1)
disco Does not exist

trusty Does not exist

upstream
Released (4.8~rc1)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-15.16~18.04.1)
disco Does not exist

trusty Does not exist

upstream
Released (4.8~rc1)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.2)
disco Not vulnerable
(4.18.0-1003.3)
trusty Does not exist

upstream
Released (4.8~rc1)
xenial
Released (4.4.0-1059.66)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (4.8~rc1)
xenial Does not exist

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

disco Does not exist

trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (4.8~rc1)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.3)
disco Not vulnerable
(4.15.0-1021.24)
trusty Does not exist

upstream
Released (4.8~rc1)
xenial Ignored
(end of standard support, was needs-triage)
linux-oracle
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1007.9)
disco Not vulnerable
(4.15.0-1007.9)
trusty Does not exist

upstream
Released (4.8~rc1)
xenial Not vulnerable
(4.15.0-1007.9~16.04.1)
linux-raspi2
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.13.0-1005.5)
disco Not vulnerable
(4.18.0-1005.7)
trusty Does not exist

upstream
Released (4.8~rc1)
xenial
Released (4.4.0-1123.132)
linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1053.57)
disco Not vulnerable
(5.0.0-1010.10)
trusty Does not exist

upstream
Released (4.8~rc1)
xenial
Released (4.4.0-1127.135)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H