Bug 2044429 (CVE-2021-45720)

Summary:	CVE-2021-45720 lru: Use after free in lru crate
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	igor.raits, rust-sig
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-01-24 16:01:49 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:	2044430
Bug Blocks:

Description Pedro Sampaio 2022-01-24 15:29:13 UTC

An issue was discovered in the lru crate before 0.7.1 for Rust. The iterators have a use-after-free, as demonstrated by an access after a pop operation.

https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/lru/RUSTSEC-2021-0130.md
https://rustsec.org/advisories/RUSTSEC-2021-0130.html

Comment 1 Pedro Sampaio 2022-01-24 15:29:26 UTC

Created rust-lru-cache tracking bugs for this issue:

Affects: fedora-all [bug 2044430]

Comment 2 Product Security DevOps Team 2022-01-24 16:01:48 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.