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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-21658 Detail

Description

Rust is a multi-paradigm, general-purpose programming language designed for performance and safety, especially safe concurrency. The Rust Security Response WG was notified that the `std::fs::remove_dir_all` standard library function is vulnerable a race condition enabling symlink following (CWE-363). An attacker could use this security issue to trick a privileged program into deleting files and directories the attacker couldn't otherwise access or delete. Rust 1.0.0 through Rust 1.58.0 is affected by this vulnerability with 1.58.1 containing a patch. Note that the following build targets don't have usable APIs to properly mitigate the attack, and are thus still vulnerable even with a patched toolchain: macOS before version 10.10 (Yosemite) and REDOX. We recommend everyone to update to Rust 1.58.1 as soon as possible, especially people developing programs expected to run in privileged contexts (including system daemons and setuid binaries), as those have the highest risk of being affected by this. Note that adding checks in your codebase before calling remove_dir_all will not mitigate the vulnerability, as they would also be vulnerable to race conditions like remove_dir_all itself. The existing mitigation is working as intended outside of race conditions.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://blog.rust-lang.org/2022/01/20/cve-2022-21658.html Exploit  Mitigation  Vendor Advisory 
https://github.com/rust-lang/rust/pull/93110 Patch  Third Party Advisory 
https://github.com/rust-lang/rust/pull/93110/commits/32ed6e599bb4722efefd78bbc9cd7ec4613cb946 Patch  Third Party Advisory 
https://github.com/rust-lang/rust/pull/93110/commits/406cc071d6cfdfdb678bf3d83d766851de95abaf Patch  Third Party Advisory 
https://github.com/rust-lang/rust/pull/93110/commits/4f0ad1c92ca08da6e8dc17838070975762f59714 Patch  Third Party Advisory 
https://github.com/rust-lang/rust/security/advisories/GHSA-r9cc-f5pr-p3j2 Exploit  Mitigation  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7JKZDTBMGAWIFJSNWKBMPO5EAKRR4BEW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BK32QZLHDC2OVLPKTUHNT2G3VHWHD4LX/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C63NH72Q7UHJM5V3IVYRI7LVBGGFQMSQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKGTACKMKAPRDPWPTU26GYWBELIRFF5N/
https://security.gentoo.org/glsa/202210-09 Third Party Advisory 
https://support.apple.com/kb/HT213182 Third Party Advisory 
https://support.apple.com/kb/HT213183 Third Party Advisory 
https://support.apple.com/kb/HT213186 Third Party Advisory 
https://support.apple.com/kb/HT213193 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition cwe source acceptance level NIST   GitHub, Inc.  
CWE-363 Race Condition Enabling Link Following GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

10 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-21658
NVD Published Date:
01/20/2022
NVD Last Modified:
11/06/2023
Source:
GitHub, Inc.