Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS0zcW0yLXJmcXctZm1yd84AAnvc

move_elements can double-free objects on panic

Affected versions of scratchpad used ptr::read to read elements while calling a user provided function f on them. Since the pointer read duplicates ownership, a panic inside the user provided f function could cause a double free when unwinding.

The flaw was fixed in commit 891561bea by removing the unsafe block and using a plain iterator.

Permalink: https://github.com/advisories/GHSA-3qm2-rfqw-fmrw
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS0zcW0yLXJmcXctZm1yd84AAnvc
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: almost 2 years ago
Updated: 11 months ago

CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-3qm2-rfqw-fmrw, CVE-2021-28031
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-28031
• https://rustsec.org/advisories/RUSTSEC-2021-0030.html
• https://github.com/okready/scratchpad/issues/1
• https://github.com/okready/scratchpad/commit/891561bea
• https://github.com/advisories/GHSA-3qm2-rfqw-fmrw

Repository: https://github.com/okready/scratchpad
Blast Radius: 15.7

Affected Packages