Insufficient Comparison Affecting kernel-uek-devel package, versions <0:4.1.12-124.50.2.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.06% (28th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-2598277
  • published10 Apr 2022
  • disclosed23 Mar 2021

Introduced: 23 Mar 2021

CVE-2021-20219  (opens in a new tab)
CWE-697  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-devel to version 0:4.1.12-124.50.2.el7uek or higher.
This issue was patched in ELSA-2021-9215.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-devel package and not the kernel-uek-devel package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

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.

CVSS Scores

version 3.1