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SUSE: CVE-2019-1559: SUSE Linux Security Advisory

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SUSE: CVE-2019-1559: SUSE Linux Security Advisory

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
02/19/2019
Created
03/19/2019
Added
03/09/2019
Modified
02/04/2022

Description

If an application encounters a fatal protocol error and then calls SSL_shutdown() twice (once to send a close_notify, and once to receive one) then OpenSSL can respond differently to the calling application if a 0 byte record is received with invalid padding compared to if a 0 byte record is received with an invalid MAC. If the application then behaves differently based on that in a way that is detectable to the remote peer, then this amounts to a padding oracle that could be used to decrypt data. In order for this to be exploitable "non-stitched" ciphersuites must be in use. Stitched ciphersuites are optimised implementations of certain commonly used ciphersuites. Also the application must call SSL_shutdown() twice even if a protocol error has occurred (applications should not do this but some do anyway). Fixed in OpenSSL 1.0.2r (Affected 1.0.2-1.0.2q).

Solution(s)

  • suse-upgrade-libopenssl-1_0_0-devel
  • suse-upgrade-libopenssl-1_0_0-devel-32bit
  • suse-upgrade-libopenssl-devel
  • suse-upgrade-libopenssl0_9_8
  • suse-upgrade-libopenssl0_9_8-32bit
  • suse-upgrade-libopenssl0_9_8-hmac
  • suse-upgrade-libopenssl0_9_8-hmac-32bit
  • suse-upgrade-libopenssl1-devel
  • suse-upgrade-libopenssl10
  • suse-upgrade-libopenssl1_0_0
  • suse-upgrade-libopenssl1_0_0-32bit
  • suse-upgrade-libopenssl1_0_0-hmac
  • suse-upgrade-libopenssl1_0_0-hmac-32bit
  • suse-upgrade-nodejs4
  • suse-upgrade-nodejs4-devel
  • suse-upgrade-nodejs4-docs
  • suse-upgrade-nodejs6
  • suse-upgrade-nodejs6-devel
  • suse-upgrade-nodejs6-docs
  • suse-upgrade-npm4
  • suse-upgrade-npm6
  • suse-upgrade-openssl
  • suse-upgrade-openssl-1_0_0
  • suse-upgrade-openssl-1_0_0-cavs
  • suse-upgrade-openssl-1_0_0-doc
  • suse-upgrade-openssl-doc
  • suse-upgrade-openssl1
  • suse-upgrade-openssl1-doc

References

  • SUSE-SU-2019:0572-1
  • SUSE-SU-2019:0600-1
  • SUSE-SU-2019:0658-1
  • SUSE-SU-2019:0803-1
  • SUSE-SU-2019:0818-1
  • SUSE-SU-2019:1362-1
  • SUSE-SU-2019:14091-1
  • SUSE-SU-2019:14092-1
  • SUSE-SU-2019:1553-1
  • SUSE-SU-2019:1608-1
  • USN-3899-1
  • USN-4376-2
  • CVE-2019-1559
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