CVE-2020-12771
MEDIUMCVSS 5.5/10EPSS 0.52%
Last modified
CVE-2020-12771 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An issue was discovered in the Linux kernel through 5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails.. EPSS estimates a 0.52% chance of exploitation in the next 30 days.
Description
An issue was discovered in the Linux kernel through 5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 5.6.11 |
| Debian | Debian Linux | 9.0 |
| Opensuse | Leap | 15.1 |
| Opensuse | Leap | 15.2 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 20.04 |
| Netapp | Active Iq Unified Manager | All versions |
| Netapp | Cloud Backup | All versions |
| Netapp | Element Software | All versions |
| Netapp | Hci Management Node | All versions |
| Netapp | Solidfire | All versions |
| Netapp | Steelstore Cloud Integrated Storage | All versions |
| Netapp | Hci Bootstrap Os | All versions |
| Netapp | A700s Firmware | All versions |
| Netapp | H300s Firmware | All versions |
| Netapp | H500s Firmware | All versions |
| Netapp | H700s Firmware | All versions |
| Netapp | H300e Firmware | All versions |
| Netapp | H500e Firmware | All versions |
| Netapp | H700e Firmware | All versions |
| Netapp | H410s Firmware | All versions |
| Netapp | H410c Firmware | All versions |
| Netapp | H610c Firmware | All versions |
| Netapp | H610s Firmware | All versions |
| Netapp | H615c Firmware | All versions |
| Oracle | Sd-Wan Edge | 8.2 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00071.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00019.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlMailing List, Third Party Advisory
- https://lkml.org/lkml/2020/4/26/87Exploit, Mailing List, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200608-0001/Third Party Advisory
- https://usn.ubuntu.com/4462-1/Third Party Advisory
- https://usn.ubuntu.com/4463-1/Third Party Advisory
- https://usn.ubuntu.com/4465-1/Third Party Advisory
- https://usn.ubuntu.com/4483-1/Third Party Advisory
- https://usn.ubuntu.com/4485-1/Third Party Advisory
- https://www.oracle.com/security-alerts/cpuApr2021.htmlPatch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00071.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00019.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlMailing List, Third Party Advisory
- https://lkml.org/lkml/2020/4/26/87Exploit, Mailing List, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200608-0001/Third Party Advisory
- https://usn.ubuntu.com/4462-1/Third Party Advisory
- https://usn.ubuntu.com/4463-1/Third Party Advisory
- https://usn.ubuntu.com/4465-1/Third Party Advisory
- https://usn.ubuntu.com/4483-1/Third Party Advisory
- https://usn.ubuntu.com/4485-1/Third Party Advisory
- https://www.oracle.com/security-alerts/cpuApr2021.htmlPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-12771?
An issue was discovered in the Linux kernel through 5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails.
How severe is CVE-2020-12771?
CVE-2020-12771 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.
How do I fix CVE-2020-12771?
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.
Are you affected by CVE-2020-12771?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST