CVE-2019-19815
MEDIUMCVSS 5.5/10EPSS 2.10%
Last modified
CVE-2019-19815 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel 5.0.21, mounting a crafted f2fs filesystem image can cause a NULL pointer dereference in f2fs_recover_fsync_data in fs/f2fs/recovery.c. This is related to F2FS_P_SB in fs/f2fs/f2fs.h.. EPSS estimates a 2.10% chance of exploitation in the next 30 days.
Description
In the Linux kernel 5.0.21, mounting a crafted f2fs filesystem image can cause a NULL pointer dereference in f2fs_recover_fsync_data in fs/f2fs/recovery.c. This is related to F2FS_P_SB in fs/f2fs/f2fs.h.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | 5.0.21 |
References
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19815Exploit, Third Party Advisory
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19815Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-19815?
In the Linux kernel 5.0.21, mounting a crafted f2fs filesystem image can cause a NULL pointer dereference in f2fs_recover_fsync_data in fs/f2fs/recovery.c. This is related to F2FS_P_SB in fs/f2fs/f2fs.h.
How severe is CVE-2019-19815?
CVE-2019-19815 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 2.10% probability of exploitation in the next 30 days.
How do I fix CVE-2019-19815?
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.
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Are you affected by CVE-2019-19815?
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Scan your code nowSource: NVD / NIST