Home/CVE/In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lea
CVE

CVE-2019-19447

In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lea

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.

HIGH · CVSS 7.8 EPSS 0.01689
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
▤

Affected Products & Versions

13
linux kernel>= 2.6.12 and < 3.16.82
linux kernel>= 3.17 and < 4.4.208
linux kernel>= 4.5.0 and < 4.9.208
linux kernel>= 4.10 and < 4.14.159
linux kernel>= 4.15 and < 4.19.90
linux kernel>= 4.20 and < 5.3.17
linux kernel>= 5.4 and < 5.4.4
netapp active iq unified managerall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · CVE-2019-19447github.com
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Dec 2019 · 01:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

28
rhsaRHSA-2020:4431Low
rhsaRHSA-2020:4609Important
suse-csafSUSE-SU-2020:2491-1
suse-csafSUSE-SU-2020:2492-1
suse-csafSUSE-SU-2020:2497-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlThird Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
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