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Fencer Intel
medium 5.9

CVE-2017-1000385 json

The Erlang otp TLS server answers with different TLS alerts to different error types in the RSA PKCS #1 1.5 padding.

published 8y ago modified 4mo ago also EUVD-2017-1544

cvss
5.9
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
22.1%
EPSS 22.1% chance of exploitation in 30 days, percentile 97%
public exploits
1
Metasploit

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).

Patch / fix

  • erlang Debian 14, Debian 13, Debian 12 1:20.1.7+dfsg-1

debian advisories DEBIAN-CVE-2017-1000385

  • erlang Ubuntu 14.04 LTS 1:16.b.3-dfsg-1ubuntu2.2
  • erlang Ubuntu 16.04 LTS 1:18.3-dfsg-1ubuntu3.1

ubuntu advisories UBUNTU-CVE-2017-1000385

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • erlang openstack 12, openstack 11, openstack 10 +1 more 18.3.4.7-1.el7ost
  • erlang-ic openstack 12, openstack 11, openstack 10 +1 more 18.3.4.7-1.el7ost
  • erlang-ose openstack 12, openstack 11, openstack 10 +1 more 18.3.4.7-1.el7ost
  • erlang-ssh openstack 12, openstack 11, openstack 10 +1 more 18.3.4.7-1.el7ost
  • erlang-ssl openstack 12, openstack 11, openstack 10 +1 more 18.3.4.7-1.el7ost
  • erlang-asn1 openstack 12, openstack 11, openstack 10 +1 more 18.3.4.7-1.el7ost
  • erlang-edoc openstack 12, openstack 11, openstack 10 +1 more 18.3.4.7-1.el7ost
  • erlang-erts openstack 12, openstack 11, openstack 10 +1 more 18.3.4.7-1.el7ost

red hat advisories RHSA-2018:0242RHSA-2018:0303RHSA-2018:0368RHSA-2018:0528RHBA-2019:0453

  • erlang OpenStack Cloud 7, Enterprise Storage 4 17.5.6-3.3.1

suse advisories SUSE-SU-2018:0974-1

  • erlang Package Hub 12 18.3.4.7-9.1

opensuse advisories openSUSE-SU-2017:3255-1openSUSE-SU-2017:3257-1

Is CVE-2017-1000385 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-1000385 updated cvss 6.5

erlang: TLS server vulnerable to Adaptive Chosen Ciphertext attack allowing plaintext recovery or MITM attack

  • Red Hat Enterprise Linux OpenStack Platform 6 (Juno) erlang Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) erlang, erlang-ssh, erlang-ssl, erlang-asn1, erlang-edoc, erlang-erts, +33 more Red Hat OpenStack Platform 8 (Liberty) erlang, erlang-ssh, erlang-ssl, erlang-asn1, erlang-edoc, erlang-erts, +33 more
    affected: no fix planned “Will not fix”
  • Red Hat CloudForms Management Engine 5.10 nginx 1.14.1-1.el7at, cfme 5.10.1.2-2.el7cf, erlang 20.3.8.9-2.el7at, ansible-tower 3.4.1-2.el7at, cfme-gemset 5.10.1.2-1.el7cf, nginx-mod-mail 1.14.1-1.el7at, +17 more
    fixed: vendor fix RHBA-2019:0453
  • Red Hat OpenStack Platform 9.0 erlang 18.3.4.7-1.el7ost, erlang-ic 18.3.4.7-1.el7ost, erlang-ose 18.3.4.7-1.el7ost, erlang-ssh 18.3.4.7-1.el7ost, erlang-ssl 18.3.4.7-1.el7ost, erlang-asn1 18.3.4.7-1.el7ost, +34 more
    fixed: vendor fix RHSA-2018:0528
  • Red Hat OpenStack Platform 10.0 erlang 18.3.4.7-1.el7ost, erlang-ic 18.3.4.7-1.el7ost, erlang-ose 18.3.4.7-1.el7ost, erlang-ssh 18.3.4.7-1.el7ost, erlang-ssl 18.3.4.7-1.el7ost, erlang-asn1 18.3.4.7-1.el7ost, +34 more
    fixed: vendor fix RHSA-2018:0368
  • Red Hat OpenStack Platform 11.0 erlang 18.3.4.7-1.el7ost, erlang-ic 18.3.4.7-1.el7ost, erlang-ose 18.3.4.7-1.el7ost, erlang-ssh 18.3.4.7-1.el7ost, erlang-ssl 18.3.4.7-1.el7ost, erlang-asn1 18.3.4.7-1.el7ost, +34 more
    fixed: vendor fix RHSA-2018:0303
  • Red Hat OpenStack Platform 12.0 erlang 18.3.4.7-1.el7ost, erlang-ic 18.3.4.7-1.el7ost, erlang-ose 18.3.4.7-1.el7ost, erlang-ssh 18.3.4.7-1.el7ost, erlang-ssl 18.3.4.7-1.el7ost, erlang-asn1 18.3.4.7-1.el7ost, +34 more
    fixed: vendor fix RHSA-2018:0242

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (Metasploit auxiliary/scanner/ssl/bleichenbacher_oracle)
  2. Published

Exploit prediction

22.10% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 3.0 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.