CVE-2019-19447
published 2019-12-08CVE-2019-19447: 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…
PriorityP339high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
3.54%
88.1th percentile
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.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.4.6-1 (bookworm) | linux 5.4.6-1 (bookworm) |
| linux | linux_kernel | >= 0 < 5.4.6-1 | 5.4.6-1 |
| linux | linux_kernel | >= 0 < 5.4.6-1 | 5.4.6-1 |
| linux | linux_kernel | >= 0 < 5.4.6-1 | 5.4.6-1 |
| linux | linux_kernel | >= 0 < 5.4.6-1 | 5.4.6-1 |
| linux | linux_kernel | >= 2.6.12 < 3.16.82 | 3.16.82 |
| linux | linux_kernel | >= 3.17 < 4.4.208 | 4.4.208 |
| linux | linux_kernel | >= 4.10 < 4.14.159 | 4.14.159 |
| linux | linux_kernel | >= 4.15 < 4.19.90 | 4.19.90 |
| linux | linux_kernel | >= 4.20 < 5.3.17 | 5.3.17 |
| linux | linux_kernel | >= 4.5.0 < 4.9.208 | 4.9.208 |
| linux | linux_kernel | >= 5.4 < 5.4.4 | 5.4.4 |
| netapp | hci_baseboard_management_controller | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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GHSA
GHSA-jx5x-5x47-rh28: In the Linux kernel 5
ghsa_unreviewed·2022-05-24
CVE-2019-19447 [MEDIUM] CWE-416 GHSA-jx5x-5x47-rh28: In the Linux kernel 5
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.
OSV
CVE-2019-19447: In the Linux kernel 5
osv·2019-12-08·CVSS 7.8
CVE-2019-19447 [HIGH] CVE-2019-19447: In the Linux kernel 5
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.
Red Hat
kernel: 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
vendor_redhat·2019-12-10·CVSS 7.8
CVE-2019-19447 [HIGH] CWE-416 kernel: 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
kernel: 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
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.
A flaw was found in the Linux kernel's ext4_unlink function. An attacker could corrupt memory or escalate privileges when deleting a file from a recently unmounted specially crafted ext4 filesystem, including local, USB, and iSCSI.
Mitigation: Ext4 filesytems are built into the kernel so it is not possible to prevent the kernel module from loading. However, this flaw can be prevented by disallowing mounting
Debian
CVE-2019-19447: linux - In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing...
vendor_debian·2019·CVSS 7.8
CVE-2019-19447 [HIGH] CVE-2019-19447: linux - In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing...
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.
Scope: local
bookworm: resolved (fixed in 5.4.6-1)
bullseye: resolved (fixed in 5.4.6-1)
forky: resolved (fixed in 5.4.6-1)
sid: resolved (fixed in 5.4.6-1)
trixie: resolved (fixed in 5.4.6-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-19447 kernel: 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
bugzilla·2019-12-10·CVSS 7.8
CVE-2019-19447 [HIGH] CVE-2019-19447 kernel: 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
CVE-2019-19447 kernel: 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
A user with permissions to mount and unmount a crafted ext4 file system, via any transport mechanism (local, USB, ISCSI) can lead to a use-after-free when attempting to delete a directory after the disk has been umounted.
This can lead to possible memory corruption and privilege escalation.
External Reference:
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19447
https://bugzilla.kernel.org/show_bug.cgi?id=205433
Discussion:
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1781680]
---
Mitigation:
Ext4 filesytems are built into the kernel so it is not possible to prevent the kernel
Bugzilla
CVE-2019-19447 kernel: CVE-2019-19447kernel: 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 [fed
bugzilla·2019-12-10·CVSS 7.8
CVE-2019-19447 [HIGH] CVE-2019-19447 kernel: CVE-2019-19447kernel: 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 [fed
CVE-2019-19447 kernel: CVE-2019-19447kernel: 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 [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mentio
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlhttps://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19447https://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlhttps://security.netapp.com/advisory/ntap-20200103-0001/http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlhttps://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19447https://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlhttps://security.netapp.com/advisory/ntap-20200103-0001/
2019-12-08
Published