Out-of-Bounds Affecting libguestfs-winsupport package, versions *


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (23rd percentile)

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  • Snyk IDSNYK-CENTOS7-LIBGUESTFSWINSUPPORT-2021485
  • published16 Sept 2021
  • disclosed30 Aug 2021

Introduced: 30 Aug 2021

CVE-2021-33285  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 libguestfs-winsupport.

NVD Description

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

In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute is supplied to the function ntfs_get_attribute_value, a heap buffer overflow can occur allowing for memory disclosure or denial of service. The vulnerability is caused by an out-of-bound buffer access which can be triggered by mounting a crafted ntfs partition. The root cause is a missing consistency check after reading an MFT record : the "bytes_in_use" field should be less than the "bytes_allocated" field. When it is not, the parsing of the records proceeds into the wild.

CVSS Scores

version 3.1