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CVE-2019-19037

Good to know:

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Date: November 20, 2019

ext4_empty_dir in fs/ext4/namei.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because ext4_read_dirblock(inode,0,DIRENT_HTREE) can be zero. After conducting further research, Mend has determined that versions v2.6.30-rc1-v4.9.207, v4.10-rc1-v4.14.160, v4.15-rc1--v4.19.91, v5.0-rc1--v5.4.6 and v5.5-rc1--v5.5-rc2 of Linux Kernel are vulnerable to CVE-2019-19037.

Language: C

Severity Score

Related Resources (8)

https://security-tracker.debian.org/tracker/CVE-2019-19037
https://security.netapp.com/advisory/ntap-20191205-0001/
https://access.redhat.com/security/cve/CVE-2019-19037
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-19037
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19037
https://nvd.nist.gov/vuln/detail/CVE-2019-19037
https://www.mend.io/vulnerability-database/CVE-2019-19037

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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Upgrade Version

Upgrade to version linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744;linux-yocto - 4.8.24+gitAUTOINC+c84532b647_f6329fd287;linux-libc-headers - 5.8

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CVSS v3.1

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

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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