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CVE-2021-38511

Date: August 10, 2021

An issue was discovered in the tar crate before 0.4.36 for Rust. When symlinks are present in a TAR archive, extraction can create arbitrary directories via .. traversal.

Language: RUST

Severity Score

Related Resources (9)

https://github.com/alexcrichton/tar-rs
https://github.com/alexcrichton/tar-rs/issues/238
https://security-tracker.debian.org/tracker/CVE-2021-38511
https://nvd.nist.gov/vuln/detail/CVE-2021-38511
https://rustsec.org/advisories/RUSTSEC-2021-0080.html
https://crates.io/crates/tar
https://github.com/alexcrichton/tar-rs/pull/259
https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/tar/RUSTSEC-2021-0080.md
https://www.mend.io/vulnerability-database/CVE-2021-38511

Severity Score

Weakness Type (CWE)

Improper Link Resolution Before File Access ('Link Following')

CWE-59

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-22

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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