5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
53.1%
btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel through 5.3.12
allows a NULL pointer dereference because rcu_dereference(root->node) can
be zero.
Author | Note |
---|---|
tyhicks | Exploiting this vulnerability requires a crafted filesystem image to be mounted |
sbeattie | likely addressed by the btrfs write time tree-checker, which would mean it is addressed for kernels back through 4.4.x |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux-hwe | < 5.3.0-26.28~18.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-hwe | < 4.15.0-112.113~16.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1077.81 | UNKNOWN |
ubuntu | 19.10 | noarch | linux-aws | < 5.3.0-1007.8 | UNKNOWN |
ubuntu | 19.10 | noarch | linux-azure | < 5.3.0-1007.8 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-azure | < 4.15.0-1091.101~14.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 16.04 | noarch | linux-azure | < 4.15.0-1091.101~16.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-kvm | < 4.15.0-1069.70 | UNKNOWN |
ubuntu | 19.10 | noarch | linux-kvm | < 5.3.0-1007.8 | UNKNOWN |
ubuntu | 19.10 | noarch | linux-gcp | < 5.3.0-1008.9 | UNKNOWN |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19036
github.com/bobfuzzer/CVE/tree/master/CVE-2019-19036
launchpad.net/bugs/cve/CVE-2019-19036
nvd.nist.gov/vuln/detail/CVE-2019-19036
security-tracker.debian.org/tracker/CVE-2019-19036
ubuntu.com/security/notices/USN-4414-1
ubuntu.com/security/notices/USN-4439-1
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
53.1%