Out-of-bounds Write Affecting openshift/ose-rhel-coreos-9 package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.55% (44th percentile)

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  • Snyk IDSNYK-RHEL7-OPENSHIFTOSERHELCOREOS9-19786145
  • published14 Sept 2026
  • disclosed11 Sept 2026

Introduced: 11 Sep 2026

NewCVE-2026-89611  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 openshift/ose-rhel-coreos-9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openshift/ose-rhel-coreos-9 package and not the openshift/ose-rhel-coreos-9 package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

ntfs: validate non-resident attribute offsets

ntfs_attr_update_meta() shifts the attribute name when converting between non-sparse and sparse attributes. Converting to sparse also adds the compressed_size field before the name and mapping pairs, requiring eight additional bytes in the attribute record.

However, the validator does not check that name_offset is within safe boundaries for these operations or that the additional space is available. A malicious MFT record could set name_offset such that:

  1. The name is positioned at the very end of a non-sparse attribute. Converting to sparse would shift the name forward by 8 bytes, writing beyond the attribute boundary.

  2. The name overlaps with the mapping pairs, causing corruption during conversion.

Add validation to ensure:

  • For named attributes, name_offset is within valid bounds
  • Name does not extend beyond the attribute or overlap with mapping pairs
  • For non-sparse, non-compressed attributes, eight bytes are available after mapping_pairs_offset for the compressed_size field

The space check also covers unnamed attributes, for which name_offset = 0 is valid and no name range needs to be checked.

CVSS Base Scores

version 3.1