Home/CVE/There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common function in dr
CVE

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 dr

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.

HIGH · CVSS 7.1 EPSS 0.00035
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
▤

Affected Products & Versions

9
linux kernel<= 5.5.2
debian linuxall versions
opensuse leapall versions
netapp active iq unified managerall versions
netapp cloud backupall versions
netapp hci baseboard management controllerall versions
netapp solidfire baseboard management controllerall versions
broadcom brocade fabric operating system firmwareall versions
⚠

Public Exploits & PoCs

1
pocbugzilla.kernel.org · show_bug.cgi?id=206361bugzilla.kernel.org
▣

Scoring & Timeline

7.1
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Feb 2020 · 01:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
⚑

Vendor Advisories

30
rhsaRHSA-2020:4431Low
suse-csafopenSUSE-SU-2024:10728-1
suse-csafopenSUSE-SU-2024:13704-1
rhsaRHSA-2020:4609Important
rhsaRHSA-2021:3522Important
🔗

References & Sources

10
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlMailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20200924-0004/Third Party Advisory
https://usn.ubuntu.com/4342-1/Third Party Advisory
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