An issue was discovered in the Linux kernel through 4.17.10. There is a use-after-free in try_merge_free_space() when mounting a crafted btrfs image, because of a lack of chunk type flag checks in btrfs_check_chunk_valid in fs/btrfs/volumes.c.
http://www.securityfocus.com/bid/104917
https://bugzilla.kernel.org/show_bug.cgi?id=199839
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
https://patchwork.kernel.org/patch/10503099/
https://usn.ubuntu.com/3932-1/
https://usn.ubuntu.com/3932-2/
Source: MITRE
Published: 2018-07-27
Updated: 2020-06-10
Type: CWE-416
Base Score: 7.1
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 8.6
Severity: HIGH
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM
OR
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 4.17.10 (inclusive)
OR
ID | Name | Product | Family | Severity |
---|---|---|---|---|
137283 | Debian DLA-2241-2 : linux security update | Nessus | Debian Local Security Checks | high |
128478 | Ubuntu 16.04 LTS / 18.04 LTS : linux-aws vulnerabilities (USN-4118-1) | Nessus | Ubuntu Local Security Checks | critical |
127889 | Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4094-1) | Nessus | Ubuntu Local Security Checks | high |
124983 | EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1530) | Nessus | Huawei Local Security Checks | high |
123681 | Ubuntu 14.04 LTS : linux-lts-xenial, linux-aws vulnerabilities (USN-3932-2) | Nessus | Ubuntu Local Security Checks | high |
123680 | Ubuntu 16.04 LTS : linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities (USN-3932-1) | Nessus | Ubuntu Local Security Checks | high |
122879 | Debian DLA-1715-1 : linux-4.9 security update (Spectre) | Nessus | Debian Local Security Checks | high |
121505 | Slackware 14.2 : Slackware 14.2 kernel (SSA:2019-030-01) | Nessus | Slackware Local Security Checks | high |
118861 | Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2018-4270) | Nessus | Oracle Linux Local Security Checks | high |