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CVE-2019-20054

Good to know:

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Date: December 27, 2019

In the Linux kernel before 5.0.6, there is a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links, aka CID-23da9588037e.

Language: C

Severity Score

Related Resources (11)

https://access.redhat.com/security/cve/CVE-2019-20054
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-20054
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.11
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=89189557b47b35683a27c80ee78aef18248eefb4
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.6
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=23da9588037ecdd4901db76a5b79a42b529c4ec3
https://security-tracker.debian.org/tracker/CVE-2019-20054
https://nvd.nist.gov/vuln/detail/CVE-2019-20054
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
https://security.netapp.com/advisory/ntap-20200204-0002/
https://www.mend.io/vulnerability-database/CVE-2019-20054

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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