Amazon Linux 2023 : cargo, clippy, rust (ALAS2023-2026-1871)

high Nessus Plugin ID 322022

Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1871 advisory.

gitoxide is an implementation of git written in Rust. Prior to 0.21.1, a malicious tree can be constructed that will, when checked out with gitoxide, permit writing an attacker-controlled symlink into any existing directory the user has write access to. During checkout, all symlink index entries are deferred and created after regular files using a single shared gix_worktree::Stack. Internally, this uses a gix_fs::Stack. gix_fs::Stack::make_relative_path_current() caches validated path prefixes: when the previously-processed leaf component exactly matches the leading component(s) of the next path, the leaf- to-directory transition at gix-fs/src/stack.rs invokes only delegate.push_directory(), never delegate.push(). In gix_worktree::stack::delegate::StackDelegate, when the state member is State::CreateDirectoryAndAttributesStack, Attributes::push_directory() only loads attributes (from the ODB, in the clone case), and does not perform any other checks. The on-disk symlink_metadata() check and unlink-on-collision live in StackDelegate::push()'s invocation of create_leading_directory(), which is therefore bypassed for the cached prefix. The final symlink is created with plain std::os::unix::fs::symlink, which follows symlinks in parent directories. Therefore, it's possible to provide a tree with duplicate symlink and directory entries that exploits this. This vulnerability is fixed in 0.21.1. (CVE-2026-44471)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'dnf update rust --releasever 2023.12.20260622' or or 'dnf update --advisory ALAS2023-2026-1871 --releasever 2023.12.20260622' to update your system.

Plugin Details

Severity: High

ID: 322022

File Name: al2023_ALAS2023-2026-1871.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 6/22/2026

Updated: 6/22/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-44471

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:rustfmt-debuginfo, p-cpe:/a:amazon:linux:cargo, p-cpe:/a:amazon:linux:rust-std-static-wasm32-wasip1, p-cpe:/a:amazon:linux:rust, p-cpe:/a:amazon:linux:rust-lldb, p-cpe:/a:amazon:linux:rust-debuginfo, p-cpe:/a:amazon:linux:rust-analyzer-debuginfo, p-cpe:/a:amazon:linux:rust-debugsource, p-cpe:/a:amazon:linux:rust-debugger-common, p-cpe:/a:amazon:linux:rust-toolset-srpm-macros, p-cpe:/a:amazon:linux:rustfmt, p-cpe:/a:amazon:linux:clippy-debuginfo, p-cpe:/a:amazon:linux:rust-toolset, p-cpe:/a:amazon:linux:rust-analyzer, p-cpe:/a:amazon:linux:rust-std-static-wasm32-unknown-unknown, p-cpe:/a:amazon:linux:rust-src, p-cpe:/a:amazon:linux:cargo-debuginfo, p-cpe:/a:amazon:linux:rust-gdb, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:rust-doc, p-cpe:/a:amazon:linux:rust-std-static, p-cpe:/a:amazon:linux:clippy

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/22/2026

Vulnerability Publication Date: 5/7/2026

Reference Information

CVE: CVE-2026-44471

Detections

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