CVE-2026-116732
Description
A flaw was found in libdwarf. When parsing debug address tables, the library fails to properly account for starting offsets when verifying section length boundaries. An attacker could exploit this vulnerability by tricking a user or automated system into parsing a specially crafted object file, causing an out-of-bounds read past the allocated buffer. This flaw could lead to a Denial of Service (DoS) via an application crash or the unauthorized disclosure of adjacent memory contents.
Statement
This vulnerability is rated as Moderate impact for Red Hat Enterprise Linux because successful exploitation requires local user interaction to open or analyze a maliciously crafted object file. In typical Red Hat deployments, libdwarf is utilized by local debugging tools and analysis utilities rather than persistent network services. Consequently, the blast radius is restricted to the execution context of the invoking command-line utility, causing an unprivileged process crash or limited heap memory disclosure without allowing arbitrary code execution or data modification.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.4 | N/A | 4.4 |
| Attack Vector | Local | N/A | Local |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | Required | N/A | Required |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | Low | N/A | Low |
| Integrity Impact | None | N/A | None |
| Availability Impact | Low | N/A | Low |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
cve.org: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
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