Bug 2039784 (CVE-2021-45707)

Summary:	CVE-2021-45707 rust-nix: unistd::getgrouplist has an out-of-bounds write
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	igor.raits, rust-sig
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	rust-nix 0.22.2	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-01-12 13:30:40 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2039785
Bug Blocks:

Description Marian Rehak 2022-01-12 12:49:19 UTC

An issue was discovered in the nix crate before 0.20.2, 0.21.x before 0.21.2, and 0.22.x before 0.22.2 for Rust. unistd::getgrouplist has an out-of-bounds write if a user is in more than 16 /etc/groups groups.

Reference:

https://rustsec.org/advisories/RUSTSEC-2021-0119.html
https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/nix/RUSTSEC-2021-0119.md

Comment 1 Marian Rehak 2022-01-12 12:49:43 UTC

Created rust-nix tracking bugs for this issue:

Affects: fedora-all [bug 2039785]

Comment 2 Product Security DevOps Team 2022-01-12 13:30:38 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.