CVE-2019-19816
HIGHCVSS 7.8/10EPSS 3.29%
Last modified
CVE-2019-19816 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c, because a value of 1 for the number of data stripes is mishandled.. EPSS estimates a 3.29% chance of exploitation in the next 30 days.
Description
In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c, because a value of 1 for the number of data stripes is mishandled.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.12, < 4.4.247 |
| Linux | Linux Kernel | >= 4.5, < 4.9.247 |
| Linux | Linux Kernel | >= 4.10, < 4.14.210 |
| Linux | Linux Kernel | >= 4.15, < 4.19.137 |
| Linux | Linux Kernel | >= 4.20, < 5.2 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Debian | Debian Linux | 9.0 |
| Netapp | Active Iq Unified Manager | >= 9.5 |
| Netapp | Data Availability Services | All versions |
| Netapp | Hci Management Node | All versions |
| Netapp | Solidfire | All versions |
| Netapp | Steelstore Cloud Integrated Storage | All versions |
| Netapp | Aff A700s Firmware | All versions |
| Netapp | Fas8300 Firmware | All versions |
| Netapp | Fas8700 Firmware | All versions |
| Netapp | Aff A400 Firmware | All versions |
| Netapp | H610s Firmware | All versions |
References
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19816Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
- https://usn.ubuntu.com/4414-1/Third Party Advisory
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19816Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
- https://usn.ubuntu.com/4414-1/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-19816?
In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c, because a value of 1 for the number of data stripes is mishandled.
How severe is CVE-2019-19816?
CVE-2019-19816 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 3.29% probability of exploitation in the next 30 days.
How do I fix CVE-2019-19816?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2019
- CVE-2019-19807In the Linux kernel before 5.3.11, sound/core/timer.c has a …7.8
- CVE-2019-1981A vulnerability in the normalization functionality of Cisco …5.8
- CVE-2019-19810Zoom Call Recording 6.3.1 from Eleveo is vulnerable to Java …10
- CVE-2019-19813In the Linux kernel 5.0.21, mounting a crafted btrfs filesys…5.5
- CVE-2019-19814In the Linux kernel 5.0.21, mounting a crafted f2fs filesyst…7.8
- CVE-2019-19815In the Linux kernel 5.0.21, mounting a crafted f2fs filesyst…5.5
- CVE-2019-19817The JBIG2Decode library in npdf.dll in Nitro Free PDF Reader…5.5
- CVE-2019-19818The JBIG2Decode library in npdf.dll in Nitro Free PDF Reader…5.5
- CVE-2019-19819The JBIG2Globals library in npdf.dll in Nitro Free PDF Reade…5.5
- CVE-2019-1982A vulnerability in the HTTP traffic filtering component of C…5.3
- CVE-2019-19820An invalid pointer vulnerability in IOCTL Handling in the ky…7.8
- CVE-2019-19821A post-authentication privilege escalation in the web applic…8.1
Are you affected by CVE-2019-19816?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST