Bug 922956

There is code in libnssckbi.so which masks this issue:

http://lxr.mozilla.org/mozilla-central/source/security/nss/lib/ckfw/builtins/bfind.c#120

In addition similar code was added to p11-kit as a work around until this is fixed for real:

http://cgit.freedesktop.org/p11-glue/p11-kit/commit/?id=1ad9f98b11f3f0d411bf9517f1dc8985ea3dbe2a

This is a stack trace of the lookups in question:

(gdb) bt
#0  0x0000003f80a35ba5 in __GI_raise (sig=sig@entry=6)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:63
#1  0x0000003f80a37358 in __GI_abort () at abort.c:90
#2  0x00007fffddc74c21 in p11_debug_precond (format=
    0x7fffddc7b370 "finding serial number that's not DER encoded")
    at debug.c:151
#3  0x00007fffddc618d7 in sys_C_FindObjectsInit (handle=16, template=
    0x7fffed5fe430, count=4) at module.c:1105
#4  0x0000003e738718b0 in find_objects (tok=tok@entry=0x7fffdd538030, 
    sessionOpt=sessionOpt@entry=0x7fffde475238, 
    obj_template=obj_template@entry=0x7fffed5fe430, otsize=otsize@entry=4, 
    maximumOpt=maximumOpt@entry=1, statusOpt=statusOpt@entry=0x0)
    at devtoken.c:300
#5  0x0000003e73871b90 in find_objects_by_template (token=0x7fffdd538030, 
    sessionOpt=0x7fffde475238, obj_template=obj_template@entry=0x7fffed5fe430, 
    otsize=4, maximumOpt=maximumOpt@entry=1, statusOpt=statusOpt@entry=0x0)
    at devtoken.c:436
#6  0x0000003e738730b7 in nssToken_FindTrustForCertificate (token=token@entry=
    0x7fffdd538030, sessionOpt=sessionOpt@entry=0x0, 
    certEncoding=certEncoding@entry=0x7fffdca0a8e8, 
    certIssuer=certIssuer@entry=0x7fffdca0a8f8, certSerial=certSerial@entry=
    0x7fffdca0a918, searchType=searchType@entry=nssTokenSearchType_TokenOnly)
    at devtoken.c:1150
#7  0x0000003e7386b71b in nssTrustDomain_FindTrustForCertificate (td=
    0x7fffde475030, c=c@entry=0x7fffdca0a888) at trustdomain.c:1084
#8  0x0000003e7387019a in fill_CERTCertificateFields (forced=0, cc=
    0x7fffdca0ac20, c=0x7fffdca0a888) at pki3hack.c:800
#9  stan_GetCERTCertificate (c=c@entry=0x7fffdca0a888, 
    forceUpdate=forceUpdate@entry=0) at pki3hack.c:894
#10 0x0000003e73870447 in STAN_GetCERTCertificate (c=c@entry=0x7fffdca0a888)
    at pki3hack.c:926
#11 0x0000003e73865200 in CERT_NewTempCertificate (handle=<optimized out>, 
    derCert=derCert@entry=0x7fffed5fe730, nickname=nickname@entry=0x0, 
    isperm=isperm@entry=0, copyDER=copyDER@entry=1) at stanpcertdb.c:409
#12 0x0000003e75c14ac8 in ssl3_HandleCertificate (length=1892, b=
    0x7fffd90294a1 "", ss=0x7fffda250000) at ssl3con.c:8545
#13 ssl3_HandleHandshakeMessage (ss=ss@entry=0x7fffda250000, 
    b=<optimized out>, length=<optimized out>) at ssl3con.c:9462
#14 0x0000003e75c17519 in ssl3_HandleHandshake (origBuf=0x7fffda250398, ss=
    0x7fffda250000) at ssl3con.c:9592
#15 ssl3_HandleRecord (ss=ss@entry=0x7fffda250000, cText=cText@entry=
    0x7fffed5fea50, databuf=databuf@entry=0x7fffda250398) at ssl3con.c:10230
#16 0x0000003e75c18315 in ssl3_GatherCompleteHandshake (ss=0x7fffda250000, 
    flags=0) at ssl3gthr.c:361
#17 0x0000003e75c19915 in ssl_GatherRecord1stHandshake (ss=0x7fffda250000)
    at sslcon.c:1227
#18 0x0000003e75c20995 in ssl_Do1stHandshake (ss=ss@entry=0x7fffda250000)
    at sslsecur.c:120
#19 0x0000003e75c221a6 in ssl_SecureSend (ss=0x7fffda250000, buf=
    0x35882e3b67 "", len=0, flags=<optimized out>) at sslsecur.c:1209

#20 0x0000003e75c25dd6 in ssl_Send (fd=<optimized out>, buf=0x35882e3b67, len=
    0, flags=0, timeout=4294967295) at sslsock.c:2092
#21 0x0000003587afbe99 in PSMSend (fd=0x7fffda217100, buf=0x35882e3b67, 
    amount=<optimized out>, flags=0, timeout=<optimized out>)
    at /usr/src/debug/xulrunner-19.0.2/mozilla-release/security/manager/ssl/src/nsNSSIOLayer.cpp:1136
---Type <return> to continue, or q <return> to quit---
#22 0x00000035872a16e7 in nsSocketOutputStream::Write (this=0x7fffdf3885c0, 
    buf=0x35882e3b67 "", count=0, countWritten=0x7fffed5febf4)
    at /usr/src/debug/xulrunner-19.0.2/mozilla-release/netwerk/base/src/nsSocketTransport2.cpp:554
#23 0x00000035872e9d50 in nsHttpConnection::EnsureNPNComplete (this=this@entry=
    0x7fffda2c4600)
    at /usr/src/debug/xulrunner-19.0.2/mozilla-release/netwerk/protocol/http/nsHttpConnection.cpp:271
#24 0x00000035872e9ec7 in nsHttpConnection::OnSocketWritable (this=
    0x7fffda2c4600)
    at /usr/src/debug/xulrunner-19.0.2/mozilla-release/netwerk/protocol/http/nsHttpConnection.cpp:1229
#25 0x00000035872ea02f in nsHttpConnection::OnOutputStreamReady (this=
    0x7fffda2c4600, out=<optimized out>)
    at /usr/src/debug/xulrunner-19.0.2/mozilla-release/netwerk/protocol/http/nsHttpConnection.cpp:1544
#26 0x00000035872a125f in nsSocketOutputStream::OnSocketReady (this=this@entry=
    0x7fffdf3885c0, condition=condition@entry=NS_OK)
    at /usr/src/debug/xulrunner-19.0.2/mozilla-release/netwerk/base/src/nsSocketTransport2.cpp:493
#27 0x00000035872a1315 in nsSocketTransport::OnSocketReady (this=
    0x7fffdf388460, fd=0x7fffda217100, outFlags=2)
    at /usr/src/debug/xulrunner-19.0.2/mozilla-release/netwerk/base/src/nsSocketTransport2.cpp:1545
#28 0x00000035872a39cc in nsSocketTransportService::DoPollIteration (
    this=this@entry=0x7ffff1661ea0, wait=<optimized out>)
    at /usr/src/debug/xulrunner-19.0.2/mozilla-release/netwerk/base/src/nsSocketTransportService2.cpp:807
#29 0x00000035872a3b6c in nsSocketTransportService::Run (this=0x7ffff1661ea0)
    at /usr/src/debug/xulrunner-19.0.2/mozilla-release/netwerk/base/src/nsSocketTransportService2.cpp:646
#30 0x0000003587d97c0c in nsThread::ProcessNextEvent (this=0x7ffff7d4bfc0, 
    mayWait=<optimized out>, result=0x7fffed5fee3f)
    at /usr/src/debug/xulrunner-19.0.2/mozilla-release/xpcom/threads/nsThread.cpp:627
#31 0x0000003587d6cf75 in NS_ProcessNextEvent_P (thread=<optimized out>, 
    mayWait=true)
    at /usr/src/debug/xulrunner-19.0.2/mozilla-release/objdir/xpcom/build/nsThreadUtils.cpp:238
#32 0x0000003587d98460 in nsThread::ThreadFunc (arg=0x7ffff7d4bfc0)
    at /usr/src/debug/xulrunner-19.0.2/mozilla-release/xpcom/threads/nsThread.cpp:265
#33 0x0000003e74428e23 in _pt_root (arg=0x7ffff7d22bf0)
    at ../../../mozilla/nsprpub/pr/src/pthreads/ptthread.c:156
#34 0x0000003f80e07d15 in start_thread (arg=0x7fffed5ff700)
    at pthread_create.c:308
#35 0x0000003f80af246d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:114

And here is some example debug output showing the invalid lookups:

(p11-kit:14906) sys_C_FindObjectsInit: in: 16, (4) [ { CKA_TOKEN = (1) "\x01" }, { CKA_CLASS = CKO_NSS_TRUST }, { CKA_ISSUER = (66) "0@1\x0b0\t\x06\x03U\x04\x06\x13\x02US1\x170\x15\x06\x03U\x04\n\x13\x0eGeoTrust, Inc.1\x180\x16\x06\x03U\x04\x03\x13\x0fGeoTrust SSL CA" }, { CKA_SERIAL_NUMBER = (3) "\x01\x04\xa7" } ]

(p11-kit:14906) sys_C_FindObjectsInit: in: 16, (4) [ { CKA_TOKEN = (1) "\x01" }, { CKA_CLASS = CKO_CERTIFICATE }, { CKA_ISSUER = (80) "0N1\x0b0\t\x06\x03U\x04\x06\x13\x02US1\x100\x0e\x06\x03U\x04\n\x13\x07Equifax1-0+\x06\x03U\x04\x0b\x13$Equifax Secure Certificate Authority" }, { CKA_SERIAL_NUMBER = (3) "\x12\xbb\xe6" } ]

Bob, I'm having a really hard time reproducing this again. Do you have any idea of how it might happen?

Not a blocker. For future work.

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