CVE-2018-1095

EUVD-2018-11745
The ext4_xattr_check_entries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service (get_acl NULL pointer dereference and system crash) via a crafted ext4 image.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
NONE
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 35%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
𝑥
≤ 4.15.15
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.226-1
fixed
jessie
not-affected
sid
6.11.5-1
fixed
stretch
not-affected
trixie
6.11.5-1
fixed
wheezy
not-affected
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
artful
ignored
bionic
Fixed 4.15.0-24.26
released
cosmic
not-affected
trusty
not-affected
xenial
not-affected
linux-aws
artful
dne
bionic
Fixed 4.15.0-1011.11
released
cosmic
not-affected
trusty
not-affected
xenial
not-affected
linux-azure
artful
dne
bionic
Fixed 4.15.0-1014.14
released
cosmic
not-affected
trusty
not-affected
xenial
Fixed 4.15.0-1014.14~16.04.1
released
linux-azure-edge
bionic
not-affected
cosmic
dne
trusty
dne
xenial
Fixed 4.15.0-1014.14
released
linux-euclid
artful
dne
bionic
dne
cosmic
dne
trusty
dne
xenial
ignored
linux-flo
artful
dne
bionic
dne
cosmic
dne
trusty
dne
xenial
ignored
linux-gcp
artful
dne
bionic
Fixed 4.15.0-1010.10
released
cosmic
not-affected
trusty
dne
xenial
Fixed 4.15.0-1014.14~16.04.1
released
linux-gke
artful
dne
bionic
dne
cosmic
dne
trusty
dne
xenial
not-affected
linux-goldfish
artful
dne
bionic
dne
cosmic
dne
trusty
dne
xenial
not-affected
linux-grouper
artful
dne
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-hwe
artful
dne
bionic
not-affected
cosmic
dne
trusty
dne
xenial
Fixed 4.15.0-24.26~16.04.1
released
linux-hwe-edge
artful
dne
bionic
not-affected
cosmic
dne
trusty
dne
xenial
Fixed 4.15.0-24.26~16.04.1
released
linux-kvm
artful
dne
bionic
Fixed 4.15.0-1012.12
released
cosmic
not-affected
trusty
dne
xenial
not-affected
linux-lts-trusty
artful
dne
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-lts-utopic
artful
dne
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-lts-vivid
artful
dne
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-lts-wily
artful
dne
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-lts-xenial
artful
dne
bionic
dne
cosmic
dne
trusty
not-affected
xenial
dne
linux-maguro
artful
dne
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-mako
artful
dne
bionic
dne
cosmic
dne
trusty
dne
xenial
ignored
linux-manta
artful
dne
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
linux-oem
artful
dne
bionic
Fixed 4.15.0-1009.12
released
cosmic
not-affected
trusty
dne
xenial
ignored
linux-raspi2
artful
ignored
bionic
Fixed 4.15.0-1013.14
released
cosmic
not-affected
trusty
dne
xenial
not-affected
linux-snapdragon
artful
not-affected
bionic
not-affected
cosmic
dne
trusty
dne
xenial
not-affected