CVE-2017-1000385
MEDIUM severity · CVSS 5.9 · CWE-203
5.9CVSS MEDIUM
Summary
The Erlang otp TLS server answers with different TLS alerts to different error types in the RSA PKCS #1 1.5 padding. This allows an attacker to decrypt content or sign messages with the server's private key (this is a variation of the Bleichenbacher attack).
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)22%
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://erlang.org/pipermail/erlang-questions/2017-November/094255.htmlAdvisory
- http://erlang.org/pipermail/erlang-questions/2017-November/094256.htmlAdvisory
- http://erlang.org/pipermail/erlang-questions/2017-November/094257.htmlAdvisory
- http://www.securityfocus.com/bid/102197Advisory
- https://access.redhat.com/errata/RHSA-2018:0242
- https://access.redhat.com/errata/RHSA-2018:0303
- https://access.redhat.com/errata/RHSA-2018:0368
- https://access.redhat.com/errata/RHSA-2018:0528