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    NSS 3.23 release notes

    Introduction

    The NSS team has released Network Security Services (NSS) 3.23, which is a minor release.

    Distribution Information

    The HG tag is NSS_3_23_RTM. NSS 3.23 requires NSPR 4.12 or newer.

    NSS 3.23 source distributions are available on ftp.mozilla.org for secure HTTPS download:

    New in NSS 3.23

    New Functionality

    • ChaCha20/Poly1305 cipher and TLS cipher suites now supported (bug 917571, bug 1227905)
    • Experimental-only support TLS 1.3 1-RTT mode (draft-11). This code is not ready for production use.

    New Functions

    • in ssl.h
      • SSL_SetDowngradeCheckVersion - Set maximum version for new ServerRandom anti-downgrade mechanism. Clients that perform a version downgrade (which is a dangerous practice) call this with the highest version number that they possibly support.  This gives them access to the version downgrade protection from TLS 1.3.

     

    Notable Changes in NSS 3.23

     

    • The copy of SQLite shipped with NSS has been updated to version 3.10.2 (bug 1234698)
    • The list of TLS extensions sent in the TLS handshake has been reordered to increase compatibility of the Extended Master Secret with servers (bug 1243641)
    • The build time environment variable NSS_ENABLE_ZLIB has been renamed to NSS_SSL_ENABLE_ZLIB (Bug 1243872).
    • The build time environment variable NSS_DISABLE_CHACHAPOLY was added, which can be used to prevent compilation of the ChaCha20/Poly1305 code.
    • The following CA certificates were Removed
      • CN = Staat der Nederlanden Root CA
        • SHA-256 Fingerprint: D4:1D:82:9E:8C:16:59:82:2A:F9:3F:CE:62:BF:FC:DE:26:4F:C8:4E:8B:95:0C:5F:F2:75:D0:52:35:46:95:A3
      • CN = NetLock Minositett Kozjegyzoi (Class QA) Tanusitvanykiado
        • SHA-256 Fingerprint: E6:06:DD:EE:E2:EE:7F:5C:DE:F5:D9:05:8F:F8:B7:D0:A9:F0:42:87:7F:6A:17:1E:D8:FF:69:60:E4:CC:5E:A5
      • CN = NetLock Kozjegyzoi (Class A) Tanusitvanykiado
        • SHA-256 Fingerprint: 7F:12:CD:5F:7E:5E:29:0E:C7:D8:51:79:D5:B7:2C:20:A5:BE:75:08:FF:DB:5B:F8:1A:B9:68:4A:7F:C9:F6:67
      • CN = NetLock Uzleti (Class B) Tanusitvanykiado
        • SHA-256 Fingerprint: 39:DF:7B:68:2B:7B:93:8F:84:71:54:81:CC:DE:8D:60:D8:F2:2E:C5:98:87:7D:0A:AA:C1:2B:59:18:2B:03:12
      • CN = NetLock Expressz (Class C) Tanusitvanykiado
        • SHA-256 Fingerprint: 0B:5E:ED:4E:84:64:03:CF:55:E0:65:84:84:40:ED:2A:82:75:8B:F5:B9:AA:1F:25:3D:46:13:CF:A0:80:FF:3F
      • Friendly Name: VeriSign Class 1 Public PCA – G2
        • SHA-256 Fingerprint: 34:1D:E9:8B:13:92:AB:F7:F4:AB:90:A9:60:CF:25:D4:BD:6E:C6:5B:9A:51:CE:6E:D0:67:D0:0E:C7:CE:9B:7F
      • Friendly Name: VeriSign Class 3 Public PCA
        • SHA-256 Fingerprint: A4:B6:B3:99:6F:C2:F3:06:B3:FD:86:81:BD:63:41:3D:8C:50:09:CC:4F:A3:29:C2:CC:F0:E2:FA:1B:14:03:05
      • Friendly Name: VeriSign Class 3 Public PCA – G2
        • SHA-256 Fingerprint: 83:CE:3C:12:29:68:8A:59:3D:48:5F:81:97:3C:0F:91:95:43:1E:DA:37:CC:5E:36:43:0E:79:C7:A8:88:63:8B
      • CN = CA Disig
        • SHA-256 Fingerprint: 92:BF:51:19:AB:EC:CA:D0:B1:33:2D:C4:E1:D0:5F:BA:75:B5:67:90:44:EE:0C:A2:6E:93:1F:74:4F:2F:33:CF
    • The following CA certificates were Added
      • CN = SZAFIR ROOT CA2
        • SHA-256 Fingerprint: A1:33:9D:33:28:1A:0B:56:E5:57:D3:D3:2B:1C:E7:F9:36:7E:B0:94:BD:5F:A7:2A:7E:50:04:C8:DE:D7:CA:FE
      • CN = Certum Trusted Network CA 2
        • SHA-256 Fingerprint: B6:76:F2:ED:DA:E8:77:5C:D3:6C:B0:F6:3C:D1:D4:60:39:61:F4:9E:62:65:BA:01:3A:2F:03:07:B6:D0:B8:04
    • The following CA certificate had the Email trust bit turned on
      • CN = Actalis Authentication Root CA
        • SHA-256 Fingerprint: 55:92:60:84:EC:96:3A:64:B9:6E:2A:BE:01:CE:0B:A8:6A:64:FB:FE:BC:C7:AA:B5:AF:C1:55:B3:7F:D7:60:66

    Security Fixes in NSS 3.23

    • Bug 1245528 / CVE-2016-1950 - Fixed a heap-based buffer overflow related to the parsing of certain ASN.1 structures. An attacker could create a specially-crafted certificate which, when parsed by NSS, would cause a crash or execution of arbitrary code with the permissions of the user.

    Bugs fixed in NSS 3.23

    This Bugzilla query returns all the bugs fixed in NSS 3.23:

    https://bugzilla.mozilla.org/buglist.cgi?resolution=FIXED&classification=Components&query_format=advanced&product=NSS&target_milestone=3.23

    Acknowledgements

    The NSS development team would like to thank security researcher Francis Gabriel for responsibly disclosing the issue in Bug 1245528.

    Compatibility

    NSS 3.23 shared libraries are backward compatible with all older NSS 3.x shared libraries. A program linked with older NSS 3.x shared libraries will work with NSS 3.23 shared libraries without recompiling or relinking. Furthermore, applications that restrict their use of NSS APIs to the functions listed in NSS Public Functions will remain compatible with future versions of the NSS shared libraries.

    Feedback

    Bugs discovered should be reported by filing a bug report with bugzilla.mozilla.org (product NSS).

     

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     Contributors to this page: rolfedh, m_t, kaie, kwilson, ttaubert
     Last updated by: rolfedh,