Bug 1782950 (CVE-2019-19480)

Summary:	CVE-2019-19480 opensc: incorrect free operation in sc_pkcs15_decode_prkdf_entry in libopensc/pkcs15-prkey.c
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:	crypto-team, gmazyland, jjelen, klember, nmavrogi, tmraz
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:	2020-01-16 13:58:33 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:	1782951, 1782952
Bug Blocks:	1782953

Description Guilherme de Almeida Suckevicz 2019-12-12 17:04:35 UTC

An issue was discovered in OpenSC through 0.19.0 and 0.20.x through 0.20.0-rc3. libopensc/pkcs15-prkey.c has an incorrect free operation in sc_pkcs15_decode_prkdf_entry.

Reference:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18478

Upstream commit:
https://github.com/OpenSC/OpenSC/commit/6ce6152284c47ba9b1d4fe8ff9d2e6a3f5ee02c7

Comment 1 Guilherme de Almeida Suckevicz 2019-12-12 17:04:50 UTC

Created opensc tracking bugs for this issue:

Affects: epel-6 [bug 1782952]
Affects: fedora-all [bug 1782951]

Comment 4 Huzaifa S. Sidhpurwala 2020-01-16 13:58:36 UTC

Statement:

Please note that this issue was  was introduced with https://github.com/OpenSC/OpenSC/commit/630d6adf32cecaab0ee184618f56497bd50400fb and fixed with https://github.com/OpenSC/OpenSC/commit/6ce6152284c47ba9b1d4fe8ff9d2e6a3f5ee02c7, therefore no release versions of opensc are affected by this issue.