CVE Database›CVE-2025-55159

CVE-2025-55159

slab: Slab: Out-of-bounds Memory Access Vulnerability

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Severity

Moderate

Red Hat Product Security

4

CVSS 3.1

Review impact separately from score.

Published · August 12, 2025

Updated · June 30, 2026

Description

A flaw was found in slab. The get_disjoint_mut method incorrectly validates index boundaries against the slab's capacity rather than its length, enabling a local attacker to access uninitialized memory. This memory access occurs when requesting disjoint mutable references within the slab. Consequently, this can lead to information disclosure.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

To mitigate this flaw avoid using get_disjoint_mut with indices that might be beyond the slab's actual length

CVSS / CWE

CVSS 3.1 · 4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer