Insecure path handling in Bundler

高 7.8CVE-2019-3881 · GHSA-g98m-96g9-wfjq · 04/09/2020 公開 · 17/06/2026 更新

要点

CVE-2019-3881 は bundler, bundler (bundler) に影響する深刻度「高」 (CVSS 7.8) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.53%（全脆弱性の 44.9% より高い）。
対処：2.1.0 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
bundler RubyGems	`≥ 1.14.0, < 2.1.0`	`2.1.0`
bundler bundler	`< 2.1.0`	`2.1.0`

概要

Bundler prior to 2.1.0 uses a predictable path in /tmp/, created with insecure permissions as a storage location for gems, if locations under the user's home directory are not available. If Bundler is used in a scenario where the user does not have a writable home directory, an attacker could place malicious code in this directory that would be later loaded and executed.

NVD の説明

Bundler prior to 2.1.0 uses a predictable path in /tmp/, created with insecure permissions as a storage location for gems, if locations under the user's home directory are not available. If Bundler is used in a scenario where the user does not have a writable home directory, an attacker could place malicious code in this directory that would be later loaded and executed.