Red Hat Enterprise Linux up to 10 libparted buffer overflow

Summaryinfo

A vulnerability was found in Red Hat Enterprise Linux 6/7/8/9/10. It has been declared as problematic. Affected by this issue is some unknown functionality of the component libparted. Such manipulation leads to buffer overflow. This vulnerability is uniquely identified as CVE-2026-89088. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in Red Hat Enterprise Linux 6/7/8/9/10. It has been rated as problematic. Affected by this issue is some unknown processing of the component libparted. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is availability. CVE summarizes:

A flaw was found in parted. A heap-based buffer overflow exists in libparted's file system resizing logic when handling FAT16 volumes. By convincing a user or administrator to resize a specially crafted FAT16 file system image with malformed directory metadata, an attacker can trigger an oversized read into a fixed-size memory buffer. This issue causes memory corruption, resulting in an application crash and a denial of service (DoS).

The advisory is shared for download at access.redhat.com. This vulnerability is handled as CVE-2026-89088 since 09/10/2026. The exploitation is known to be easy. The attack needs to be approached locally. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 10/17/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Red Hat

Name

• Enterprise Linux

Version

• 6
• 7
• 8
• 9
• 10

License

• commercial

Website

• Vendor: https://www.redhat.com/

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