CVE-2018-13096
Vulnerability Summary
Timeline
Description
An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.14. A denial of service (out-of-bounds memory access and BUG) can occur upon encountering an abnormal bitmap size when mounting a crafted f2fs image.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- v2.0•MEDIUM•Score: 4.3AV:N/AC:M/Au:N/C:N/I:N/A:P
EPSS Trends
Current EPSS score: 2.54%• Percentile: 84%
Techniques & Countermeasures
- CWE-125•Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
- CWE-787•Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
Affected Systems
- canonical•ubuntu_linux
14.04 | 16.04 | 18.04
- debian•linux
< 4.19.9-1 | < 4.19.9-1 | < 4.19.9-1 | < 4.19.9-1
- ubuntu•linux
all | < 4.4.0-139.165 | < 4.15.0-58.64
- ubuntu•linux-aws
< 4.4.0-1034.37 | < 4.4.0-1072.82 | < 4.15.0-1047.49
- ubuntu•linux-aws-fips
< 4.15.0-2018.18 | all
- ubuntu•linux-aws-hwe
< 4.15.0-1047.49~16.04.1
- ubuntu•linux-azure
< 4.15.0-1059.64~14.04.1 | < 4.15.0-1055.60 | < 4.18.0-1011.11~18.04.1
- ubuntu•linux-azure-fde
all
- ubuntu•linux-azure-fips
< 4.15.0-2006.7 | all
- ubuntu•linux-bluefield
all
- ubuntu•linux-fips
< 4.4.0-1008.10
- ubuntu•linux-gcp
< 4.15.0-1040.42~16.04.1 | < 4.15.0-1040.42
- ubuntu•linux-gcp-fips
all
- ubuntu•linux-gke
all
- ubuntu•linux-gke-4.15
< 4.15.0-1040.42
- ubuntu•linux-hwe
< 4.15.0-58.64~16.04.1
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1037.43 | < 4.15.0-1042.42
- ubuntu•linux-lts-xenial
< 4.4.0-139.165~14.04.1
- ubuntu•linux-oem
< 4.15.0-1050.57
- ubuntu•linux-oracle
< 4.15.0-1021.23~16.04.1 | < 4.15.0-1021.23
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.4.0-1100.108 | < 4.15.0-1043.46 | all
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
all | all
- ubuntu•linux-snapdragon
< 4.4.0-1104.109 | < 4.15.0-1060.66
- debian•debian_linux
8.0
- linux•linux_kernel
≤ 4.14
- opensuse•leap
42.3
References (21)
- https://usn.ubuntu.com/3821-1/
- https://bugzilla.kernel.org/show_bug.cgi?id=200167
- https://usn.ubuntu.com/3821-2/
- https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html
- https://seclists.org/bugtraq/2019/Jan/52
- http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.html
- http://packetstormsecurity.com/files/151420/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- https://usn.ubuntu.com/4094-1/
- https://usn.ubuntu.com/4118-1/
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e34438c903b653daca2b2a7de95aed46226f8ed3
- https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=e34438c903b653daca2b2a7de95aed46226f8ed3
- https://ubuntu.com/security/CVE-2018-13096
- https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=f2fs-dev&id=e335cc683fd13882b9152937b06ff3c16c28aa34
- https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=f2fs-dev&id=c77ec61ca0a49544ca81881cc5d5529858f7e196
- https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git/commit/?h=dev&id=c77ec61ca0a49544ca81881cc5d5529858f7e196
- https://ubuntu.com/security/notices/USN-3821-1
- https://ubuntu.com/security/notices/USN-3821-2
- https://ubuntu.com/security/notices/USN-4094-1
- https://ubuntu.com/security/notices/USN-4118-1
- https://www.cve.org/CVERecord?id=CVE-2018-13096
- https://security-tracker.debian.org/tracker/CVE-2018-13096