PT-2020-17553 · Rust · Miow

Published 2020-11-13 · Updated 2021-08-25 · CVE-2020-35921

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions miow crate versions prior to 0.3.6

Description The issue arises from the miow crate's assumption about the memory representation of std::net::SocketAddrV4 and std::net::SocketAddrV6 being the same as the system C representation sockaddr. This assumption leads to a simple casting of pointers to convert socket addresses to the system representation. However, since the standard library does not guarantee a specific memory layout, any changes to the implementation could result in invalid memory access without warnings or errors.

Recommendations For versions prior to 0.3.6, update to version 0.3.6 or later to resolve the issue.

Exploit

Fix

Weakness Enumeration

CWE-188

Related Identifiers

CVE-2020-35921

GHSA-JRCF-4JP8-M28V

RUSTSEC-2020-0080

Affected Products

Miow

References · 15

• 🔥 https://rustsec.org/advisories/RUSTSEC-2020-0080.html · Exploit
• https://ubuntu.com/security/CVE-2020-35921 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-35921 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-35921 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-35921 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-35921 · Security Note
• https://osv.dev/vulnerability/RUSTSEC-2020-0080 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-35921 · Security Note
• https://osv.dev/vulnerability/GHSA-jrcf-4jp8-m28v · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-35921 · Vendor Advisory
• https://github.com/yoshuawuyts/miow/pull/40 · Note
• https://github.com/yoshuawuyts/miow/issues/38 · Note
• https://github.com/yoshuawuyts/miow/pull/39 · Note
• https://github.com/yoshuawuyts/miow · Note
• https://crates.io/crates/miow · Note