PT-2020-17534 · Rust · Actix-Codec

Published 2020-01-30 · Updated 2021-08-25 · CVE-2020-35902

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions actix-codec crate versions prior to 0.3.0-beta.1

Description The issue is related to a use-after-free in Framed, where affected versions of the crate did not require the buffer wrapped in Framed to be pinned, but treated it as if it had a fixed location in memory. This may result in a use-after-free.

Recommendations For actix-codec crate versions prior to 0.3.0-beta.1, update to version 0.3.0-beta.1 or later, which corrected the flaw by making the affected functions accept Pin<&mut Self> instead of &mut self.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2020-35902

GHSA-RQGX-HPG4-456R

RUSTSEC-2020-0049

Affected Products

Actix-Codec

References · 9

• 🔥 https://rustsec.org/advisories/RUSTSEC-2020-0049.html · Exploit
• https://osv.dev/vulnerability/GHSA-rqgx-hpg4-456r · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-35902 · Security Note
• https://osv.dev/vulnerability/CVE-2020-35902 · Vendor Advisory
• https://osv.dev/vulnerability/RUSTSEC-2020-0049 · Vendor Advisory
• https://github.com/actix/actix-net/commit/c41b5d8dd4235ccca84d0b687996615c0c64d956 · Note
• https://github.com/actix/actix-net/issues/91 · Note
• https://github.com/actix/actix-net · Note
• https://crates.io/crates/actix-codec · Note