UBUNTU-CVE-2019-18885
Vulnerability Summary
Timeline
Description
fs/btrfs/volumes.c in the Linux kernel before 5.1 allows a btrfs_verify_dev_extents NULL pointer dereference via a crafted btrfs image because fs_devices->devices is mishandled within find_device, aka CID-09ba3bc9dd15.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Systems
- ubuntu•linux
all | < 4.4.0-173.203 | < 4.15.0-88.88
- ubuntu•linux-aws
< 4.4.0-1061.65 | < 4.4.0-1101.112 | < 4.15.0-1060.62
- ubuntu•linux-aws-5.0
< 5.0.0-1024.27~18.04.1
- ubuntu•linux-aws-fips
< 4.15.0-2018.18 | all
- ubuntu•linux-aws-hwe
< 4.15.0-1060.62~16.04.1
- ubuntu•linux-azure
< 4.15.0-1071.76~14.04.1 | < 4.15.0-1071.76 | < 5.0.0-1029.31~18.04.1
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all
- ubuntu•linux-azure-fips
< 4.15.0-2006.7 | all
- ubuntu•linux-bluefield
all
- ubuntu•linux-fips
< 4.4.0-1028.33 | all
- ubuntu•linux-gcp
< 4.15.0-1055.59 | < 5.0.0-1029.30~18.04.1
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-gcp-fips
all
- ubuntu•linux-gke
all
- ubuntu•linux-gke-4.15
< 4.15.0-1052.55
- ubuntu•linux-gke-5.0
< 5.0.0-1029.30~18.04.1
- ubuntu•linux-hwe
< 4.15.0-88.88~16.04.1 | < 5.3.0-26.28~18.04.1
- ubuntu•linux-hwe-edge
all | all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1065.72 | < 4.15.0-1053.53
- ubuntu•linux-lts-xenial
< 4.4.0-173.203~14.04.1
- ubuntu•linux-nvidia
all
- ubuntu•linux-oem
< 4.15.0-1073.83
- ubuntu•linux-oem-osp1
< 5.0.0-1037.42
- ubuntu•linux-oracle
< 4.15.0-1033.36~16.04.1 | < 4.15.0-1033.36
- ubuntu•linux-oracle-5.0
< 5.0.0-1010.15~18.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.4.0-1128.137 | < 4.15.0-1055.59
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
all | all
- ubuntu•linux-snapdragon
< 4.4.0-1132.140 | < 4.15.0-1072.79
References (10)
- https://ubuntu.com/security/CVE-2019-18885
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=09ba3bc9dd150457c506e4661380a6183af651c1
- https://github.com/bobfuzzer/CVE-2019-18885
- https://github.com/torvalds/linux/commit/09ba3bc9dd150457c506e4661380a6183af651c1
- https://ubuntu.com/security/notices/USN-4254-1
- https://ubuntu.com/security/notices/USN-4254-2
- https://ubuntu.com/security/notices/USN-4258-1
- https://ubuntu.com/security/notices/USN-4287-1
- https://ubuntu.com/security/notices/USN-4287-2
- https://www.cve.org/CVERecord?id=CVE-2019-18885