Ubuntu
openssl package

Bug #1951279
Comment #13

Comment 13 for bug 1951279

Revision history for this message

David Hess (dhess-8) wrote on 2021-12-25:

#13

Here's an interesting data point. If I run this under valgrind:

$ valgrind openssl s_client -showcerts -connect graph.facebook.com:443
==36982== Memcheck, a memory error detector
==36982== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==36982== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==36982== Command: openssl s_client -showcerts -connect graph.facebook.com:443
==36982==
CONNECTED(00000003)
depth=2 C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert High Assurance EV Root CA
verify return:1
depth=1 C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert SHA2 High Assurance Server CA
verify return:1
depth=0 C = US, ST = California, L = Menlo Park, O = "Facebook, Inc.", CN = *.facebook.com
verify return:1
---
Certificate chain
0 s:C = US, ST = California, L = Menlo Park, O = "Facebook, Inc.", CN = *.facebook.com
i:C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert SHA2 High Assurance Server CA
-----BEGIN CERTIFICATE-----
MIIGkTCCBXmgAwIBAgIQCivCRFoplTX8XaBRF4f4wDANBgkqhkiG9w0BAQsFADBw
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
d3cuZGlnaWNlcnQuY29tMS8wLQYDVQQDEyZEaWdpQ2VydCBTSEEyIEhpZ2ggQXNz
dXJhbmNlIFNlcnZlciBDQTAeFw0yMTEwMDMwMDAwMDBaFw0yMjAxMDEyMzU5NTla
MGkxCzAJBgNVBAYTAlVTMRMwEQYDVQQIEwpDYWxpZm9ybmlhMRMwEQYDVQQHEwpN
ZW5sbyBQYXJrMRcwFQYDVQQKEw5GYWNlYm9vaywgSW5jLjEXMBUGA1UEAwwOKi5m
YWNlYm9vay5jb20wWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQ9cpj/+XqZgH6d
qstfu/ZUoA+jNBS8A2pE9naG2+/1fDQbFhAK/4N1wNQ69xh2o1KbUId1Qi9sDCWk
Fu6s9XAqo4ID9zCCA/MwHwYDVR0jBBgwFoAUUWj/kK8CB3U8zNllZGKiErhZcjsw
HQYDVR0OBBYEFLARiFqEkLy4TD1U7suyuVQuqD6/MIG1BgNVHREEga0wgaqCDiou
ZmFjZWJvb2suY29tgg4qLmZhY2Vib29rLm5ldIILKi5mYmNkbi5uZXSCCyouZmJz
YnguY29tghAqLm0uZmFjZWJvb2suY29tgg8qLm1lc3Nlbmdlci5jb22CDioueHgu
ZmJjZG4ubmV0gg4qLnh5LmZiY2RuLm5ldIIOKi54ei5mYmNkbi5uZXSCDGZhY2Vi
b29rLmNvbYINbWVzc2VuZ2VyLmNvbTAOBgNVHQ8BAf8EBAMCB4AwHQYDVR0lBBYw
FAYIKwYBBQUHAwEGCCsGAQUFBwMCMHUGA1UdHwRuMGwwNKAyoDCGLmh0dHA6Ly9j
cmwzLmRpZ2ljZXJ0LmNvbS9zaGEyLWhhLXNlcnZlci1nNi5jcmwwNKAyoDCGLmh0
dHA6Ly9jcmw0LmRpZ2ljZXJ0LmNvbS9zaGEyLWhhLXNlcnZlci1nNi5jcmwwPgYD
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Tl4NHC+rOj0CIFHm8wXHI/F0gsWQVv5Ot8Ij4RuEZEVMMau/AEMroZ2aAHUAQcjK
sd8iRkoQxqE6CUKHXk4xixsD6+tLx2jwkGKWBvYAAAF8Q4ALyAAABAMARjBEAiAB
b4Q1lYSN7rcuXUxkIzbum5dVe0caAHuVTYgU00HYkQIgFtebuk3zr+NVZ520RCGZ
fetkFZv08wHf7TJK+JBMnBwwDQYJKoZIhvcNAQELBQADggEBAIcfi8CHi/+QH4cW
BjjDEZnQtPaOG77WtdFW2UK3xt2GKk4qY5rfVKLFGT9vAZRx4ZHFfK6c1IADkNMe
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1xKLH87I+P7IwgQtE2en7yt9bu03GPIU0DVkYzqvBxGCq599ae2gYIVZVRSe2Xhp
WVeBB03fhf+NNcbR4LZK7n1ohrUBs7rurc0z6iv8V6qRU+aj8tS8606iQhcjEm9h
SN8G9/0JXXR5oWD/pAScLRtBwvkmDJEyw9lwxiErjgnfFHL0iDUZvqk0gXiQq54v
IK957WY=
-----END CERTIFICATE-----
1 s:C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert SHA2 High Assurance Server CA
i:C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert High Assurance EV Root CA
-----BEGIN CERTIFICATE-----
MIIEsTCCA5mgAwIBAgIQBOHnpNxc8vNtwCtCuF0VnzANBgkqhkiG9w0BAQsFADBs
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
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4t07QjOjBSjEuyjMmqwrIw14xnvmXnG3Sj4I+4G3FhahnSMSTeXXkgisdaScus0X
sh5ENWV/UyU50RwKmmMbGZJ0aAo3wsJSSMs5WqK24V3B3aAguCGikyZvFEohQcft
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MA4GA1UdDwEB/wQEAwIBhjAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIw
NAYIKwYBBQUHAQEEKDAmMCQGCCsGAQUFBzABhhhodHRwOi8vb2NzcC5kaWdpY2Vy
dC5jb20wSwYDVR0fBEQwQjBAoD6gPIY6aHR0cDovL2NybDQuZGlnaWNlcnQuY29t
L0RpZ2lDZXJ0SGlnaEFzc3VyYW5jZUVWUm9vdENBLmNybDA9BgNVHSAENjA0MDIG
BFUdIAAwKjAoBggrBgEFBQcCARYcaHR0cHM6Ly93d3cuZGlnaWNlcnQuY29tL0NQ
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aOpKj4PWUS+Na0QWnqxj9dJubISZi6qBcYRb7TROsLd5kinMLYBq8I4g4Xmk/gNH
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0wGjIChBWUMo0oHjqvbsezt3tkBigAVBRQHvFwY+3sAzm2fTYS5yh+Rp/BIAV0Ae
cPUeybQ=
-----END CERTIFICATE-----
---
Server certificate
subject=C = US, ST = California, L = Menlo Park, O = "Facebook, Inc.", CN = *.facebook.com

issuer=C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert SHA2 High Assurance Server CA

---
No client certificate CA names sent
Peer signing digest: SHA256
Peer signature type: ECDSA
Server Temp Key: X25519, 253 bits
---
SSL handshake has read 3228 bytes and written 374 bytes
Verification: OK
---
New, TLSv1.3, Cipher is TLS_CHACHA20_POLY1305_SHA256
Server public key is 256 bit
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 0 (ok)
---
---
Post-Handshake New Session Ticket arrived:
SSL-Session:
    Protocol : TLSv1.3
    Cipher : TLS_CHACHA20_POLY1305_SHA256
    Session-ID: BA5E7D3EF0748870F4B94CC6EA59C5C0575EC6E8DBDDD0D9BEFCBDF543E26EC3
    Session-ID-ctx:
    Resumption PSK: 9A9647E811A905233D1B66E668B6BC8775583D5453E3DBB68186B0E8BDE6C3DC
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    TLS session ticket lifetime hint: 172800 (seconds)
    TLS session ticket:
    0000 - b4 c8 31 e9 50 5f 01 e3-7a 27 61 3c f1 14 92 e8 ..1.P_..z'a<....
    0010 - ab a3 15 9a e0 87 c3 0f-93 0e 56 7b 21 70 82 2b ..........V{!p.+
    0020 - 00 00 00 00 90 38 f6 e1-5b 61 49 24 21 c5 50 c8 .....8..[aI$!.P.
    0030 - c7 cd 2c 0e 6d a0 5c 5c-19 3f 1d fe 94 fa 36 ef ..,.m.\\.?....6.
    0040 - 1a 66 7c 33 e6 d8 47 db-46 ed e2 f9 cb 6f cf bb .f|3..G.F....o..
    0050 - 9e 57 0d 6f 23 39 9f d0-74 9b 3b 8b 9c 5f 21 ed .W.o#9..t.;.._!.
    0060 - 6e 86 fa 3b d2 99 c9 98-36 62 d8 84 38 aa 14 22 n..;....6b..8.."
    0070 - ec cc b7 ca b2 ee 8e 11-87 7e 1d 58 3b e6 a5 1a .........~.X;...
    0080 - c5 34 .4

    Start Time: 1640448351
    Timeout : 7200 (sec)
    Verify return code: 0 (ok)
    Extended master secret: no
    Max Early Data: 0
---
read R BLOCK
^C==36982==
==36982== Process terminating with default action of signal 2 (SIGINT)
==36982== at 0x4C8B7BC: select (select.c:53)
==36982== by 0x15DB47: s_client_main (s_client.c:2845)
==36982== by 0x14DFD3: do_cmd (openssl.c:570)
==36982== by 0x13AC03: main (openssl.c:189)
==36982==
==36982== HEAP SUMMARY:
==36982== in use at exit: 208,670 bytes in 4,256 blocks
==36982== total heap usage: 6,290 allocs, 2,034 frees, 563,009 bytes allocated
==36982==
==36982== LEAK SUMMARY:
==36982== definitely lost: 0 bytes in 0 blocks
==36982== indirectly lost: 0 bytes in 0 blocks
==36982== possibly lost: 0 bytes in 0 blocks
==36982== still reachable: 208,670 bytes in 4,256 blocks
==36982== suppressed: 0 bytes in 0 blocks
==36982== Rerun with --leak-check=full to see details of leaked memory
==36982==
==36982== For lists of detected and suppressed errors, rerun with: -s
==36982== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)

it not only doesn't report any errors, it finishes and goes into waiting for input *without* a segmentation fault. Versus:

$ openssl s_client -showcerts -connect graph.facebook.com:443
CONNECTED(00000003)
Segmentation fault (core dumped)
$

This may be a newly discovered race condition of some sort that's only showing up on some Arm64 platforms (Apple Silicon M1 Max in my case).

Here's an interesting data point. If I run this under valgrind:

$ valgrind openssl s_client -showcerts -connect graph.facebook.com:443
==36982== Memcheck, a memory error detector
==36982== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==36982== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==36982== Command: openssl s_client -showcerts -connect graph.facebook.com:443
==36982== 
CONNECTED(00000003)
depth=2 C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert High Assurance EV Root CA
verify return:1
depth=1 C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert SHA2 High Assurance Server CA
verify return:1
depth=0 C = US, ST = California, L = Menlo Park, O = "Facebook, Inc.", CN = *.facebook.com
verify return:1
---
Certificate chain
 0 s:C = US, ST = California, L = Menlo Park, O = "Facebook, Inc.", CN = *.facebook.com
   i:C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert SHA2 High Assurance Server CA
-----BEGIN CERTIFICATE-----
MIIGkTCCBXmgAwIBAgIQCivCRFoplTX8XaBRF4f4wDANBgkqhkiG9w0BAQsFADBw
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
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IK957WY=
-----END CERTIFICATE-----
 1 s:C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert SHA2 High Assurance Server CA
   i:C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert High Assurance EV Root CA
-----BEGIN CERTIFICATE-----
MIIEsTCCA5mgAwIBAgIQBOHnpNxc8vNtwCtCuF0VnzANBgkqhkiG9w0BAQsFADBs
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0wGjIChBWUMo0oHjqvbsezt3tkBigAVBRQHvFwY+3sAzm2fTYS5yh+Rp/BIAV0Ae
cPUeybQ=
-----END CERTIFICATE-----
---
Server certificate
subject=C = US, ST = California, L = Menlo Park, O = "Facebook, Inc.", CN = *.facebook.com

issuer=C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert SHA2 High Assurance Server CA

---
No client certificate CA names sent
Peer signing digest: SHA256
Peer signature type: ECDSA
Server Temp Key: X25519, 253 bits
---
SSL handshake has read 3228 bytes and written 374 bytes
Verification: OK
---
New, TLSv1.3, Cipher is TLS_CHACHA20_POLY1305_SHA256
Server public key is 256 bit
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 0 (ok)
---
---
Post-Handshake New Session Ticket arrived:
SSL-Session:
    Protocol  : TLSv1.3
    Cipher    : TLS_CHACHA20_POLY1305_SHA256
    Session-ID: BA5E7D3EF0748870F4B94CC6EA59C5C0575EC6E8DBDDD0D9BEFCBDF543E26EC3
    Session-ID-ctx: 
    Resumption PSK: 9A9647E811A905233D1B66E668B6BC8775583D5453E3DBB68186B0E8BDE6C3DC
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    TLS session ticket lifetime hint: 172800 (seconds)
    TLS session ticket:
    0000 - b4 c8 31 e9 50 5f 01 e3-7a 27 61 3c f1 14 92 e8   ..1.P_..z'a<....
    0010 - ab a3 15 9a e0 87 c3 0f-93 0e 56 7b 21 70 82 2b   ..........V{!p.+
    0020 - 00 00 00 00 90 38 f6 e1-5b 61 49 24 21 c5 50 c8   .....8..[aI$!.P.
    0030 - c7 cd 2c 0e 6d a0 5c 5c-19 3f 1d fe 94 fa 36 ef   ..,.m.\\.?....6.
    0040 - 1a 66 7c 33 e6 d8 47 db-46 ed e2 f9 cb 6f cf bb   .f|3..G.F....o..
    0050 - 9e 57 0d 6f 23 39 9f d0-74 9b 3b 8b 9c 5f 21 ed   .W.o#9..t.;.._!.
    0060 - 6e 86 fa 3b d2 99 c9 98-36 62 d8 84 38 aa 14 22   n..;....6b..8.."
    0070 - ec cc b7 ca b2 ee 8e 11-87 7e 1d 58 3b e6 a5 1a   .........~.X;...
    0080 - c5 34                                             .4

Start Time: 1640448351
    Timeout   : 7200 (sec)
    Verify return code: 0 (ok)
    Extended master secret: no
    Max Early Data: 0
---
read R BLOCK
^C==36982== 
==36982== Process terminating with default action of signal 2 (SIGINT)
==36982==    at 0x4C8B7BC: select (select.c:53)
==36982==    by 0x15DB47: s_client_main (s_client.c:2845)
==36982==    by 0x14DFD3: do_cmd (openssl.c:570)
==36982==    by 0x13AC03: main (openssl.c:189)
==36982== 
==36982== HEAP SUMMARY:
==36982==     in use at exit: 208,670 bytes in 4,256 blocks
==36982==   total heap usage: 6,290 allocs, 2,034 frees, 563,009 bytes allocated
==36982== 
==36982== LEAK SUMMARY:
==36982==    definitely lost: 0 bytes in 0 blocks
==36982==    indirectly lost: 0 bytes in 0 blocks
==36982==      possibly lost: 0 bytes in 0 blocks
==36982==    still reachable: 208,670 bytes in 4,256 blocks
==36982==         suppressed: 0 bytes in 0 blocks
==36982== Rerun with --leak-check=full to see details of leaked memory
==36982== 
==36982== For lists of detected and suppressed errors, rerun with: -s
==36982== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)

it not only doesn't report any errors, it finishes and goes into waiting for input *without* a segmentation fault. Versus:

$ openssl s_client -showcerts -connect graph.facebook.com:443
CONNECTED(00000003)
Segmentation fault (core dumped)
$

This may be a newly discovered race condition of some sort that's only showing up on some Arm64 platforms (Apple Silicon M1 Max in my case).

Ubuntuopenssl package

Comment 13 for bug 1951279

Ubuntu
openssl package