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OpenSSL Truncated packet could crash via OOB read (CVE-2017-3731)

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OpenSSL Truncated packet could crash via OOB read (CVE-2017-3731)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
01/27/2017
Created
07/25/2018
Added
01/27/2017
Modified
07/16/2018

Description

If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For OpenSSL 1.1.0, the crash can be triggered when using CHACHA20/POLY1305; users should upgrade to 1.1.0d. For Openssl 1.0.2, the crash can be triggered when using RC4-MD5; users who have not disabled that algorithm should update to 1.0.2k.

Solution(s)

  • http-openssl-1_0_2-upgrade-1_0_2_k
  • http-openssl-1_1_0-upgrade-1_1_0_d

References

  • http-openssl-1_0_2-upgrade-1_0_2_k
  • http-openssl-1_1_0-upgrade-1_1_0_d

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