Bug 1628023 (CVE-2018-16425) - CVE-2018-16425 opensc: Double free handling responses from HSM Cards in pkcs15-sc-hsm.c:sc_pkcs15emu_sc_hsm_init()
Summary: CVE-2018-16425 opensc: Double free handling responses from HSM Cards in pkcs1...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-16425
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1628024 1628025
Blocks: 1622787
TreeView+ depends on / blocked
 
Reported: 2018-09-12 05:53 UTC by Sam Fowler
Modified: 2021-02-16 23:03 UTC (History)
5 users (show)

Fixed In Version: opensc 0.19.0-rc1
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Environment:
Last Closed: 2018-09-18 08:03:55 UTC
Embargoed:


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Description Sam Fowler 2018-09-12 05:53:15 UTC
A double free when handling responses from an HSM Card in sc_pkcs15emu_sc_hsm_init in libopensc/pkcs15-sc-hsm.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-d643a0fa169471dbf2912f4866dc49c5

Comment 1 Sam Fowler 2018-09-12 05:53:48 UTC
Created opensc tracking bugs for this issue:

Affects: fedora-all [bug 1628024]

Comment 3 Doran Moppert 2018-09-18 07:58:18 UTC
Does not appear to affect opensc-0.16.0, which bails out early when unable to read EF.C_DevAut rather than attempting to save the context and continue.


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