CVE-2019-25044: Use After Free
First published: Fri May 14 2021(Updated: )
The block subsystem in the Linux kernel before 5.2 has a use-after-free that can lead to arbitrary code execution in the kernel context and privilege escalation, aka CID-c3e2219216c9. This is related to blk_mq_free_rqs and blk_cleanup_queue.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | =5.2-rc3 | |
| Netapp Cloud Backup | ||
| Netapp Solidfire \& Hci Management Node | ||
| Netapp Solidfire Baseboard Management Controller Firmware | ||
| Netapp Solidfire Baseboard Management Controller | ||
| Netapp H300s Firmware | ||
| Netapp H300s | ||
| Netapp H500s Firmware | ||
| Netapp H500s | ||
| Netapp H700s Firmware | ||
| Netapp H700s | ||
| Netapp H300e Firmware | ||
| Netapp H300e | ||
| Netapp H500e Firmware | ||
| Netapp H500e | ||
| Netapp H700e Firmware | ||
| Netapp H700e | ||
| Netapp H410s Firmware | ||
| Netapp H410s | ||
| Netapp H410c Firmware | ||
| Netapp H410c |
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Reference Links
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c3e2219216c92919a6bd1711f340f5faa98695e6
- https://security.netapp.com/advisory/ntap-20210629-0006/
- https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-blk_mq_free_rqs
- https://syzkaller.appspot.com/bug?id=36fe241584203cf394d44560a42e3430434f1213
Frequently Asked Questions
What is CVE-2019-25044?
CVE-2019-25044 is a vulnerability in the block subsystem of the Linux kernel that can lead to arbitrary code execution and privilege escalation.
How severe is CVE-2019-25044?
CVE-2019-25044 has a severity rating of 7.8 out of 10.
Which software is affected by CVE-2019-25044?
The Linux kernel before version 5.2, Netapp Cloud Backup, Netapp Solidfire & Hci Management Node, and Netapp Solidfire Baseboard Management Controller Firmware are affected by CVE-2019-25044.
How can CVE-2019-25044 be fixed?
To fix CVE-2019-25044, update to a version of the Linux kernel after 5.2 or apply the necessary patches provided by the software vendor.
Where can I find more information about CVE-2019-25044?
You can find more information about CVE-2019-25044 in the references provided: [Link 1](https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2), [Link 2](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c3e2219216c92919a6bd1711f340f5faa98695e6), [Link 3](https://security.netapp.com/advisory/ntap-20210629-0006/).
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- agent/references
- agent/description
- agent/event
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/softwarecombine
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/5.2-rc3
- vendor/netapp
- canonical/netapp cloud backup
- canonical/netapp solidfire \& hci management node
- canonical/netapp solidfire baseboard management controller firmware
- canonical/netapp solidfire baseboard management controller
- canonical/netapp h300s firmware
- canonical/netapp h300s
- canonical/netapp h500s firmware
- canonical/netapp h500s
- canonical/netapp h700s firmware
- canonical/netapp h700s
- canonical/netapp h300e firmware
- canonical/netapp h300e
- canonical/netapp h500e firmware
- canonical/netapp h500e
- canonical/netapp h700e firmware
- canonical/netapp h700e
- canonical/netapp h410s firmware
- canonical/netapp h410s
- canonical/netapp h410c firmware
- canonical/netapp h410c