CVE-2019-18885

medium
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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.

References

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://security.netapp.com/advisory/ntap-20191205-0001/

https://usn.ubuntu.com/4254-1/

https://usn.ubuntu.com/4254-2/

http://packetstormsecurity.com/files/156185/Kernel-Live-Patch-Security-Notice-LSN-0062-1.html

https://usn.ubuntu.com/4258-1/

https://usn.ubuntu.com/4287-1/

https://usn.ubuntu.com/4287-2/

https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html

https://www.oracle.com/security-alerts/cpuApr2021.html

Details

Source: MITRE

Published: 2019-11-14

Updated: 2021-06-14

Type: CWE-476

Risk Information

CVSS v2

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Tenable Plugins

View all (14 total)

IDNameProductFamilySeverity
141396Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5885)NessusOracle Linux Local Security Checks
high
141374OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0044)NessusOracleVM Local Security Checks
critical
141207Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5866)NessusOracle Linux Local Security Checks
critical
140500Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5844)NessusOracle Linux Local Security Checks
medium
140499Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5845)NessusOracle Linux Local Security Checks
critical
139551Debian DLA-2323-1 : linux-4.19 new packageNessusDebian Local Security Checks
critical
137057Photon OS 1.0: Linux PHSA-2020-1.0-0295NessusPhotonOS Local Security Checks
medium
136901Photon OS 2.0: Linux PHSA-2020-2.0-0245NessusPhotonOS Local Security Checks
medium
134486EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1197)NessusHuawei Local Security Checks
critical
133800Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4287-1)NessusUbuntu Local Security Checks
high
133354Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4258-1)NessusUbuntu Local Security Checks
high
133293Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4254-1)NessusUbuntu Local Security Checks
high
132605EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1012)NessusHuawei Local Security Checks
critical
132360EulerOS 2.0 SP5 : kernel (EulerOS-SA-2019-2693)NessusHuawei Local Security Checks
high