Bug 2016086 (CVE-2021-42779)

Summary:	CVE-2021-42779 opensc: Heap use after free in sc_file_valid
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	crypto-team, jjelen, tm
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	opensc 0.22.0	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2018903, 2022288
Bug Blocks:	2001773, 2016521

Description Pedro Sampaio 2021-10-20 18:31:57 UTC

A heap use after free issue was found in Opensc before version 0.22.0 in sc_file_valid.

Upstream commit:

https://github.com/OpenSC/OpenSC/commit/1db88374

References:

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843

Comment 1 msiddiqu 2021-11-01 08:38:28 UTC

Created opensc tracking bugs for this issue:

Affects: fedora-33 [bug 2018903]