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Vulnerability record · CVE-2017-1000385 · published 12 December 2017

CVE-2017-1000385: Erlang\/otp observable discrepancy vulnerability

Erlang · Erlang\/Otp

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).

5.9 CVSS 3.0 Medium EPSS 22% · top 2.4% CWE-203 · Observable discrepancy
5.9CVSS 3.0 base score, v2 4.3
22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
26References
17 Jun 2026Last modified by NVD

Description

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).

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://erlang.org/pipermail/erlang-questions/2017-November/094255.html Issue TrackingMailing ListVendor Advisory
http://erlang.org/pipermail/erlang-questions/2017-November/094256.html Issue TrackingMailing ListVendor Advisory
http://erlang.org/pipermail/erlang-questions/2017-November/094257.html Issue TrackingMailing ListVendor Advisory
http://www.securityfocus.com/bid/102197 Third Party AdvisoryVDB Entry
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
https://lists.debian.org/debian-lts-announce/2017/12/msg00010.html
https://robotattack.org/ Issue TrackingThird Party Advisory
https://usn.ubuntu.com/3571-1/
https://www.debian.org/security/2017/dsa-4057 Issue TrackingThird Party Advisory
https://www.kb.cert.org/vuls/id/144389 Issue TrackingThird Party AdvisoryUS Government Resource
http://erlang.org/pipermail/erlang-questions/2017-November/094255.html Issue TrackingMailing ListVendor Advisory
http://erlang.org/pipermail/erlang-questions/2017-November/094256.html Issue TrackingMailing ListVendor Advisory
http://erlang.org/pipermail/erlang-questions/2017-November/094257.html Issue TrackingMailing ListVendor Advisory
http://www.securityfocus.com/bid/102197 Third Party AdvisoryVDB Entry
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
https://lists.debian.org/debian-lts-announce/2017/12/msg00010.html
https://robotattack.org/ Issue TrackingThird Party Advisory
https://usn.ubuntu.com/3571-1/
https://www.debian.org/security/2017/dsa-4057 Issue TrackingThird Party Advisory
https://www.kb.cert.org/vuls/id/144389 Issue TrackingThird Party AdvisoryUS Government Resource

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Source: NIST National Vulnerability Database (record CVE-2017-1000385), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.