Vulnerability Description
In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free because (in rwsem_can_spin_on_owner in kernel/locking/rwsem.c) rwsem_owner_flags returns an already freed pointer,
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | 5.0.21 |
| Opensuse | Leap | 15.1 |
| Canonical | Ubuntu Linux | 14.04 |
| Debian | Debian Linux | 9.0 |
| Netapp | Active Iq Unified Manager | >= 9.5 |
| Netapp | Data Availability Services | - |
| Netapp | Hci Management Node | - |
| Netapp | Solidfire | - |
| Netapp | Steelstore Cloud Integrated Storage | - |
| Netapp | Aff A700S Firmware | - |
| Netapp | Aff A700S | - |
| Netapp | Fas8300 Firmware | - |
| Netapp | Fas8300 | - |
| Netapp | Fas8700 Firmware | - |
| Netapp | Fas8700 | - |
| Netapp | Aff A400 Firmware | - |
| Netapp | Aff A400 | - |
| Netapp | H610S Firmware | - |
| Netapp | H610S | - |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing ListThird Party Advisory
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19318ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
- https://usn.ubuntu.com/4414-1/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing ListThird Party Advisory
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19318ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
- https://usn.ubuntu.com/4414-1/Third Party Advisory
FAQ
What is CVE-2019-19318?
CVE-2019-19318 is a vulnerability with a CVSS score of 4.4 (MEDIUM). In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free because (in rwsem_can_spin_on_owner in kernel/locking/rwsem.c) rwsem_owner_flags ...
How severe is CVE-2019-19318?
CVE-2019-19318 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-19318?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Opensuse Leap, Canonical Ubuntu Linux, Debian Debian Linux, Netapp Active Iq Unified Manager.