Home CVE Database CVE-2017-3737

CVE-2017-3737

Description

OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an error state mechanism. The intent was that if a fatal error occurred during a handshake then OpenSSL would move into the error state and would immediately fail if you attempted to continue the handshake. This works as designed for the explicit handshake functions (SSL_do_handshake(), SSL_accept() and SSL_connect()), however due to a bug it does not work correctly if SSL_read() or SSL_write() is called directly. In that scenario, if the handshake fails then a fatal error will be returned in the initial function call. If SSL_read()/SSL_write() is subsequently called by the application for the same SSL object then it will succeed and the data is passed without being decrypted/encrypted directly from the SSL/TLS record layer. In order to exploit this issue an application bug would have to be present that resulted in a call to SSL_read()/SSL_write() being issued after having already received a fatal error. OpenSSL version 1.0.2b-1.0.2m are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is not affected.

Priority: MEDIUM
CVSS v3: 5.9
Publish Date: Dec 7, 2017
Related ID: --
CVSS v2: Medium
Modified Date: Dec 7, 2017

Find out more about CVE-2017-3737 from the MITRE-CVE dictionary and NIST NVD


Products Affected

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Product Name Status Defect Fixed Downloads
Linux
Wind River Linux LTS 17 Fixed LIN10-2712
10.17.41.3 Wind River Linux LTS 10.17.41.3
Wind River Linux LTS 10.17.41.4
Wind River Linux LTS 10.17.41.5
Wind River Linux LTS 10.17.41.6
Wind River Linux LTS 10.17.41.7
Wind River Linux LTS 10.17.41.8
Wind River Linux LTS 10.17.41.9
Wind River Linux LTS 10.17.41.10
Wind River Linux LTS 10.17.41.11
Wind River Linux LTS 10.17.41.12
Wind River Linux LTS 10.17.41.13
Wind River Linux LTS 10.17.41.14
Wind River Linux LTS 10.17.41.15
Wind River Linux LTS 10.17.41.16
Wind River Linux LTS 10.17.41.17
Wind River Linux LTS 10.17.41.18
Wind River Linux LTS 10.17.41.20
Wind River Linux LTS 10.17.41.21
Wind River Linux LTS 10.17.41.22
Wind River Linux 9 Fixed LIN9-5972
9.0.0.14 Wind River Linux 9.0.0.14
Wind River Linux 9.0.0.15
Wind River Linux 9.0.0.16
Wind River Linux 9.0.0.17
Wind River Linux 9.0.0.18
Wind River Linux 9.0.0.19
Wind River Linux 9.0.0.20
Wind River Linux 9.0.0.21
Wind River Linux 9.0.0.22
Wind River Linux 9.0.0.23
Wind River Linux 9.0.0.24
Wind River Linux 9.0.0.25
Wind River Linux 8 Fixed LIN8-8305
8.0.0.24 Wind River Linux 8.0.0.24
Wind River Linux 8.0.0.25
Wind River Linux 8.0.0.26
Wind River Linux 8.0.0.27
Wind River Linux 8.0.0.28
Wind River Linux 8.0.0.29
Wind River Linux 8.0.0.30
Wind River Linux 8.0.0.31
Wind River Linux 8.0.0.32
Wind River Linux 8.0.0.33
Wind River Linux LTS 18 Not Vulnerable -- -- --
Wind River Linux LTS 19 Not Vulnerable -- -- --
Wind River Linux CD release Not Vulnerable -- -- --
VxWorks
VxWorks 7 Fixed -- openSSL-1.0.2o.0 --
VxWorks 6.9 Fixed -- 6.9.4.11 --

Related Products

Product Name Status Defect Fixed Downloads
Linux 7 SCP Not Vulnerable -- -- --
Linux 7 CGP Not Vulnerable -- -- --

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