Bug 1628034 – CVE-2018-16421 opensc: Buffer overflows handling responses from CAC Cards in card-cac.c:cac_get_serial_nr_from_CUID()

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Bug 1628034 - (CVE-2018-16421) CVE-2018-16421 opensc: Buffer overflows handling responses from CAC Cards in card-cac.c:cac_get_serial_nr_from_CUID()

Summary:	CVE-2018-16421 opensc: Buffer overflows handling responses from CAC Cards in ...

Status:	NEW

Aliases:	CVE-2018-16421

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
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Assigned To:	Red Hat Product Security
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Whiteboard:	impact=moderate,public=20180912,repor...
Keywords:	Security

Depends On:	1628036 1630210 1628035
Blocks:	1622787
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Reported:	2018-09-12 02:11 EDT by Sam Fowler
Modified:	2018-09-18 04:09 EDT (History)
CC List:	5 users (show)

See Also:
Fixed In Version:	opensc 0.19.0-rc1
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Description Sam Fowler 2018-09-12 02:11:09 EDT

Several buffer overflows when handling responses from a CAC Card in cac_get_serial_nr_from_CUID in libopensc/card-cac.c in OpenSC before 0.19.0-rc1 could be used by attackers able to supply crafted smartcards to cause a denial of service (application crash) or possibly have unspecified other impact.


External References:

https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/


Upstream Patch:

https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-848b13147a344ba2c6361d91ca77feb1

Comment 1 Sam Fowler 2018-09-12 02:11:34 EDT

Created opensc tracking bugs for this issue:

Affects: fedora-all [bug 1628035]

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