Out-of-bounds Write Affecting ocaml-hivex package, versions <0:1.3.18-20.module+el8.3.0+7860+a7792d29


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-ORACLE8-OCAMLHIVEX-2585086
  • published10 Apr 2022
  • disclosed8 Dec 2020

Introduced: 8 Dec 2020

CVE-2020-27821  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Oracle:8 ocaml-hivex to version 0:1.3.18-20.module+el8.3.0+7860+a7792d29 or higher.
This issue was patched in ELSA-2021-1762.

NVD Description

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

A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.

CVSS Scores

version 3.1