SB20260917183 - Out-of-bounds read in Linux kernel ntfs3
Published: September 17, 2026
Security Bulletin ID
SB20260917183
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2026-89779)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper bounds validation in the NTFS3 extended-attribute record parser when processing a crafted NTFS image. A remote attacker can provide an extended-attribute record with an undersized size field to disclose sensitive information.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/077df8464cf24f8ffc82fb6efec2ae600686e699
- https://git.kernel.org/stable/c/28a924c7e67e6d71abeb04860b61166fecb027fc
- https://git.kernel.org/stable/c/aab1880058ac767d3ea9388a9a7221c776c22c44
- https://git.kernel.org/stable/c/b27e68ad818a4ca2cef8f35f97e75d756714c818
- https://git.kernel.org/stable/c/c22f91d82cb9a29d22bdffdce6c803467984ad0c
- https://git.kernel.org/stable/c/c8a109c9e23a2c7fd548473dde728b2cb8188146
- https://git.kernel.org/stable/c/d585ed08308909c7e6fefb4e8a258aeb29b19ff9