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CVE-2021-20219

CVSS v3.1 5.5 (Medium)
55% Progress
CVSS v2.0 2.1 (Low)
21% Progress
EPSS 0.06 % (26th)
0.06% Progress
Affected Products 1
Advisories 9
Info CVSS EPSS CAPEC Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

A denial of service vulnerability was found in n_tty_receive_char_special in drivers/tty/n_tty.c of the Linux kernel. In this flaw a local attacker with a normal user privilege could delay the loop (due to a changing ldata->read_head, and a missing sanity check) and cause a threat to the system availability.

Weaknesses
CWE-697
Incorrect Comparison
CVE Status
PUBLISHED
CNA
Red Hat, Inc.
Published Date
2021-03-23 17:15:13
(3 years ago)
Updated Date
2021-03-26 19:48:33
(3 years ago)

Affected Products

Linux

Configuration #1

    CPE23 From Up To
  Linux Kernel prior 4.18 version cpe:2.3:o:linux:linux_kernel < 4.18