Integer Overflow or Wraparound Affecting libnbd package, versions <0:1.2.2-1.module+el8.4.0+20319+6eb4347c


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.17% (39th percentile)

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  • Snyk IDSNYK-ORACLE8-LIBNBD-2602823
  • published10 Apr 2022
  • disclosed24 Feb 2022

Introduced: 24 Feb 2022

CVE-2021-3607  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Oracle:8 libnbd to version 0:1.2.2-1.module+el8.4.0+20319+6eb4347c or higher.
This issue was patched in ELSA-2021-9568.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libnbd package and not the libnbd package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

An integer overflow was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a "PVRDMA_REG_DSRHIGH" write from the guest due to improper input validation. This flaw allows a privileged guest user to make QEMU allocate a large amount of memory, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

CVSS Base Scores

version 3.1