Bug 1870294 (CVE-2020-24371)

Summary:	CVE-2020-24371 lua: mishandles the interaction between barriers and the sweep phase leading to a memory access violation involving collectgarbage
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	drjohnson1, fedora, hdegoede, michel, moceap, packaging-team-maint, rob.myers, scorneli, spotrh
Target Milestone:	---	Keywords:	Reopened, 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:	2020-08-21 15:15:16 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:
Bug Blocks:	1870295

Description Guilherme de Almeida Suckevicz 2020-08-19 17:04:57 UTC

lgc.c in Lua 5.4.0 mishandles the interaction between barriers and the sweep phase, leading to a memory access violation involving collectgarbage.

Reference:
https://www.lua.org/bugs.html#5.4.0-9

Upstream commit:
https://github.com/lua/lua/commit/a6da1472c0c5e05ff249325f979531ad51533110

Comment 1 Tom "spot" Callaway 2020-08-19 18:46:15 UTC

Fixed in -6.

Comment 2 Product Security DevOps Team 2020-08-21 15:15:16 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-24371