Information disclosure in Rust Programming Language

1) Information disclosure

EUVDB-ID: #VU30986

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-1010299

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The Rust Programming Language Standard Library 1.18.0 and later is affected by: CWE-200: Information Exposure. The impact is: Contents of uninitialized memory could be printed to string or to log file. The component is: Debug trait implementation for std::collections::vec_deque::Iter. The attack vector is: The program needs to invoke debug printing for iterator over an empty VecDeque. The fixed version is: 1.30.0, nightly versions after commit b85e4cc8fadaabd41da5b9645c08c68b8f89908d.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Rust Programming Language: 1.18.0 - 1.29.2

CPE2.3

• cpe:2.3:a:rust_team:rust:1.18.0:*:*:*:*:*:*:*
• cpe:2.3:a:rust_team:rust:1.19.0:*:*:*:*:*:*:*
• cpe:2.3:a:rust_team:rust:1.20.0:*:*:*:*:*:*:*

External links

https://github.com/rust-lang/rust/issues/53566
https://github.com/rust-lang/rust/pull/53571/commits/b85e4cc8fadaabd41da5b9645c08c68b8f89908d

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.