CVE-2020-8648
HIGHCVSS 7.1/10EPSS 0.66%
Last modified
CVE-2020-8648 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common function in drivers/tty/n_tty.c.. EPSS estimates a 0.66% chance of exploitation in the next 30 days.
Description
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common function in drivers/tty/n_tty.c.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 5.5.2 |
| Debian | Debian Linux | 8.0 |
| Opensuse | Leap | 15.1 |
| Netapp | Active Iq Unified Manager | All versions |
| Netapp | Cloud Backup | All versions |
| Netapp | Hci Baseboard Management Controller | h410c |
| Netapp | Solidfire Baseboard Management Controller | All versions |
| Broadcom | Brocade Fabric Operating System Firmware | All versions |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing List, Third Party Advisory
- https://bugzilla.kernel.org/show_bug.cgi?id=206361Exploit, Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200924-0004/Third Party Advisory
- https://usn.ubuntu.com/4342-1/Third Party Advisory
- https://usn.ubuntu.com/4344-1/Third Party Advisory
- https://usn.ubuntu.com/4345-1/Third Party Advisory
- https://usn.ubuntu.com/4346-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4698Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing List, Third Party Advisory
- https://bugzilla.kernel.org/show_bug.cgi?id=206361Exploit, Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200924-0004/Third Party Advisory
- https://usn.ubuntu.com/4342-1/Third Party Advisory
- https://usn.ubuntu.com/4344-1/Third Party Advisory
- https://usn.ubuntu.com/4345-1/Third Party Advisory
- https://usn.ubuntu.com/4346-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4698Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-8648?
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common function in drivers/tty/n_tty.c.
How severe is CVE-2020-8648?
CVE-2020-8648 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.
How do I fix CVE-2020-8648?
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-2020-8648?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST