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Description of problem:

Failures in RSA_PopulatePrivateKey

Version-Release number of selected component (if applicable):

nss-softokn-freebl-3.16.2.3-9.el7.x86_64.rpm


How reproducible:

This is not easy to reproduce due to the software I am using to call RSA_PopulatePrivateKey. The result is that sometimes this function fails, other times it succeeds. What helped was a downgrade of the package using

yum -y downgrade nss-softokn-freebl-3.15.4-2.el7 nss-softokn-freebl-devel-3.15.4-2.el7 nss-softokn-3.15.4-2.el7 nss-softokn-devel-3.15.4-2.el7 nss-3.15.4-6.el7 nss-tools-3.15.4-6.el7 nss-devel-3.15.4-6.el7 nss-sysinit-3.15.4-6.el7


I am running a test suite that is part of a swtpm package located here:

https://github.com/stefanberger/swtpm.git

It builds on top of libtpms located here:

https://github.com/stefanberger/libtpms.git

Steps to Reproduce:
1. libtpms: ./configure --prefix=/usr ; make ; sudo make install
2. swtpm: ./configure --prefix=/usr ; make check
3. swtpm individual test: ./tests/test_hashing

Actual results:

Test cases are sometimes failing, sometimes passing when using nss-softokn-freebl 3.16.2.3-9.el7

Expected results:

Test case should always pass.

Additional info:

It looks to me we are hitting the bug described here:

https://bugzilla.mozilla.org/show_bug.cgi?id=992240

I see upstream has fixed the bug, and the fix will be released with NSS 3.28 later this year.

The fix was inside the softokn module, which we keep at a FIPS validated snapshot, so it's not yet possible to say when this can be fixed in RHEL 7.x

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2017:1977