Vulnerability Description
fs/btrfs/volumes.c in the Linux kernel before 5.1 allows a btrfs_verify_dev_extents NULL pointer dereference via a crafted btrfs image because fs_devices->devices is mishandled within find_device, aka CID-09ba3bc9dd15.
CVSS Score
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.1 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/156185/Kernel-Live-Patch-Security-Notice-LS
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=09ba3PatchThird Party Advisory
- https://github.com/bobfuzzer/CVE-2019-18885ExploitThird Party Advisory
- https://github.com/torvalds/linux/commit/09ba3bc9dd150457c506e4661380a6183af651cPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html
- https://security.netapp.com/advisory/ntap-20191205-0001/
- https://usn.ubuntu.com/4254-1/
- https://usn.ubuntu.com/4254-2/
- https://usn.ubuntu.com/4258-1/
- https://usn.ubuntu.com/4287-1/
- https://usn.ubuntu.com/4287-2/
- https://www.oracle.com/security-alerts/cpuApr2021.html
- http://packetstormsecurity.com/files/156185/Kernel-Live-Patch-Security-Notice-LS
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=09ba3PatchThird Party Advisory
- https://github.com/bobfuzzer/CVE-2019-18885ExploitThird Party Advisory
FAQ
What is CVE-2019-18885?
CVE-2019-18885 is a vulnerability with a CVSS score of 5.5 (MEDIUM). fs/btrfs/volumes.c in the Linux kernel before 5.1 allows a btrfs_verify_dev_extents NULL pointer dereference via a crafted btrfs image because fs_devices->devices is mishandled within find_device, aka...
How severe is CVE-2019-18885?
CVE-2019-18885 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-18885?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.