Resource Exhaustion Affecting kernel-uek package, versions <0:4.1.12-124.43.4.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEK-2578544
  • published10 Apr 2022
  • disclosed3 Jun 2020

Introduced: 3 Jun 2020

CVE-2019-20812  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek to version 0:4.1.12-124.43.4.el7uek or higher.
This issue was patched in ELSA-2020-5866.

NVD Description

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

An issue was discovered in the Linux kernel before 5.4.7. The prb_calc_retire_blk_tmo() function in net/packet/af_packet.c can result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3, aka CID-b43d1f9f7067.

CVSS Scores

version 3.1