CVE-2026-72098
説明
A flaw was found in the dm-verity component of the Linux kernel. A buffer overflow occurs during Forward Error Correction (FEC) calculation, allowing an attacker to write past the end of an allocated buffer. This out-of-bounds write can corrupt the syndrome buffer, potentially leading to system instability or other undefined behavior.
軽減策
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVSS (Common Vulnerability Scoring System) のスコアの詳細
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).
CVSS v3 スコアの内訳
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| ベーススコア | 7.8 | N/A | 9.8 |
| 攻撃ベクトル | Local | N/A | Network |
| 攻撃の複雑さ | Low | N/A | Low |
| 必要な権限 | Low | N/A | None |
| ユーザー関与レベル | None | N/A | None |
| 範囲 | Unchanged | N/A | Unchanged |
| 機密性 | High | N/A | High |
| 完全性への影響 | High | N/A | High |
| 可用性への影響 | High | N/A | High |
ベクトル
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
脆弱性の原因 (CWE) の理解
Integrity
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
Write operations could cause memory corruption. In some cases, an adversary can modify control data such as return addresses in order to execute unexpected code.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
Attempting to access out-of-range, invalid, or unauthorized memory could cause the product to crash.
Other
Technical Impact: Unexpected State
Subsequent write operations can produce undefined or unexpected results.
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