CVE-2019-19770

HIGH8.2

In the Linux kernel 4

Published Dec 12, 2019

Modified 1 years ago

Details

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

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html WEBhttps://bugzilla.kernel.org/show_bug.cgi?id=205713 WEBhttps://lists.debian.org/debian-lts-announce/2020/12/msg00015.html WEBhttps://lore.kernel.org/linux-block/20200402000002.7442-1-mcgrof%40kernel.org/WEBhttps://security.netapp.com/advisory/ntap-20200103-0001/ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2019-19770

CVSS Analysis

CVSS v3.1

8.2

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

LowC:L

Integrity

NoneI:N

Availability

HighA:H

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

Ecosystems

Timeline

PublishedDec 12, 2019

ModifiedAug 5, 2024