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CVE-2019-19447

Good to know:

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Date: December 7, 2019

In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c.

Language: C

Severity Score

Related Resources (11)

https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
https://access.redhat.com/security/cve/CVE-2019-19447
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-19447
https://nvd.nist.gov/vuln/detail/CVE-2019-19447
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
https://security.netapp.com/advisory/ntap-20200103-0001/
https://security-tracker.debian.org/tracker/CVE-2019-19447
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19447
https://www.mend.io/vulnerability-database/CVE-2019-19447

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

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Upgrade Version

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

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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): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

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

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