CVE-2019-19770

high
New! CVE Severity Now Using CVSS v3

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Description

** DISPUTED ** In the Linux kernel 4.19.83, there is a use-after-free (read) in the debugfs_remove function in fs/debugfs/inode.c (which is used to remove a file or directory in debugfs that was previously created with a call to another debugfs function such as debugfs_create_file). NOTE: Linux kernel developers dispute this issue as not being an issue with debugfs, instead this is an issue with misuse of debugfs within blktrace.

References

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html

https://bugzilla.kernel.org/show_bug.cgi?id=205713

https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html

https://lore.kernel.org/linux-block/[email protected]/

https://security.netapp.com/advisory/ntap-20200103-0001/

Details

Source: MITRE

Published: 2019-12-12

Updated: 2020-12-11

Type: CWE-416

Risk Information

CVSS v2

Base Score: 6.4

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

Impact Score: 4.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 8.2

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

Impact Score: 4.2

Exploitability Score: 3.9

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 4.19.83 (inclusive)

Tenable Plugins

View all (20 total)

IDNameProductFamilySeverity
145806CentOS 8 : kernel (CESA-2020:4431)NessusCentOS Local Security Checks
medium
145005Amazon Linux AMI : kernel (ALAS-2021-1461)NessusAmazon Linux Local Security Checks
medium
144749Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4680-1)NessusUbuntu Local Security Checks
medium
144514Photon OS 3.0: Linux PHSA-2020-3.0-0177NessusPhotonOS Local Security Checks
high
144464Amazon Linux AMI : kernel (ALAS-2020-1462) (deprecated)NessusAmazon Linux Local Security Checks
high
144097Debian DLA-2483-1 : linux-4.19 security updateNessusDebian Local Security Checks
high
143589Amazon Linux 2 : kernel (ALAS-2020-1566)NessusAmazon Linux Local Security Checks
medium
142430RHEL 8 : kernel (RHSA-2020:4431)NessusRed Hat Local Security Checks
medium
142382RHEL 8 : kernel-rt (RHSA-2020:4609)NessusRed Hat Local Security Checks
medium
138272SUSE SLES15 Security Update : kernel (SUSE-SU-2020:1663-1)NessusSuSE Local Security Checks
critical
137805EulerOS Virtualization for ARM 64 3.0.6.0 : kernel (EulerOS-SA-2020-1698)NessusHuawei Local Security Checks
medium
136239EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1536)NessusHuawei Local Security Checks
critical
136168SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:1146-1)NessusSuSE Local Security Checks
high
136166SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1142-1)NessusSuSE Local Security Checks
high
136165SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1141-1)NessusSuSE Local Security Checks
high
136075SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:1123-1)NessusSuSE Local Security Checks
high
136026SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1119-1)NessusSuSE Local Security Checks
high
136025SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1118-1)NessusSuSE Local Security Checks
high
136006openSUSE Security Update : the Linux Kernel (openSUSE-2020-543)NessusSuSE Local Security Checks
high
133992EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1158)NessusHuawei Local Security Checks
critical