Loop with Unreachable Exit Condition ('Infinite Loop') Affecting kernel-uek-devel package, versions <0:4.1.12-124.54.6.1.el7uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.08% (36th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-2576844
  • published10 Apr 2022
  • disclosed25 Apr 2019

Introduced: 25 Apr 2019

CVE-2019-3900  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-devel to version 0:4.1.12-124.54.6.1.el7uek or higher.
This issue was patched in ELSA-2021-9459.

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.

An infinite loop issue was found in the vhost_net kernel module in Linux Kernel up to and including v5.1-rc6, while handling incoming packets in handle_rx(). It could occur if one end sends packets faster than the other end can process them. A guest user, maybe remote one, could use this flaw to stall the vhost_net kernel thread, resulting in a DoS scenario.

References

CVSS Scores

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