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CVE-2017-1000385

42
FAUCET Score

CVE-2017-1000385 describes a Bleichenbacher-style oracle attack in the Erlang OTP TLS server, affecting Debian and Erlang/OTP distributions. This vulnerability allows an attacker to decrypt content or forge signatures by observing distinct TLS alert responses to different RSA PKCS #1 v1.5 padding errors. Rated Medium (CVSS 5.9), it has a high impact on confidentiality with high attack complexity, but does not affect integrity or availability. While not in CISA's KEV catalog, a Metasploit module exists, and it has garnered significant community discussion and media coverage, indicating awareness and potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
18.3.4.7CPE matchmatch criteria
cpe:2.3:a:erlang:erlang\/otp:18.3.4.7:*:*:*:*:*:*:*
19.3.6.4CPE matchmatch criteria
cpe:2.3:a:erlang:erlang\/otp:19.3.6.4:*:*:*:*:*:*:*
20.1.7CPE matchmatch criteria
cpe:2.3:a:erlang:erlang\/otp:20.1.7:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
22.10%
Probability of exploitation in next 30 days
EPSS Percentile
97.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: Scanner for Bleichenbacher Oracle in RSA PKCS #1 v1.5 · Jun 17, 2009
This CVE's current EPSS score of 0.2210 is in the 98th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (15)

redhatpatch availablevia redhat_api
Product: CloudForms Management Engine 5.10Fixed in: ansible-tower-0:3.4.1-2.el7at
View patch
redhatpatch availablevia redhat_api
Product: CloudForms Management Engine 5.10Fixed in: cfme-0:5.10.1.2-2.el7cf
View patch
redhatpatch availablevia redhat_api
Product: CloudForms Management Engine 5.10Fixed in: cfme-amazon-smartstate-0:5.10.1.2-1.el7cf
View patch
redhatpatch availablevia redhat_api
Product: CloudForms Management Engine 5.10Fixed in: cfme-appliance-0:5.10.1.2-1.el7cf
View patch
redhatpatch availablevia redhat_api
Product: CloudForms Management Engine 5.10Fixed in: cfme-gemset-0:5.10.1.2-1.el7cf
View patch
redhatpatch availablevia redhat_api
Product: CloudForms Management Engine 5.10Fixed in: erlang-0:20.3.8.9-2.el7at
View patch
redhatpatch availablevia redhat_api
Product: CloudForms Management Engine 5.10Fixed in: nginx-1:1.14.1-1.el7at
View patch
redhatpatch availablevia redhat_api
Product: CloudForms Management Engine 5.10Fixed in: rabbitmq-server-0:3.7.4-2.el7at
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 10.0 (Newton)Fixed in: erlang-0:18.3.4.7-1.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 11.0 (Ocata)Fixed in: erlang-0:18.3.4.7-1.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 12.0 (Pike)Fixed in: erlang-0:18.3.4.7-1.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 9.0 (Mitaka)Fixed in: erlang-0:18.3.4.7-1.el7ost
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6 (Juno)Fixed in: erlang
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)Fixed in: erlang
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 8 (Liberty)Fixed in: erlang

Vendor Advisories (1)

redhatCVE-2017-1000385Low

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

Nov 23, 2017

References

erlang.org / pipermail/erlang-questions/2017-November/094255.html
Issue TrackingMailing ListVendor Advisory
erlang.org / pipermail/erlang-questions/2017-November/094256.html
Issue TrackingMailing ListVendor Advisory
erlang.org / pipermail/erlang-questions/2017-November/094257.html
Issue TrackingMailing ListVendor Advisory
access.redhat.com / errata/RHSA-2018:0242
access.redhat.com / errata/RHSA-2018:0303
access.redhat.com / errata/RHSA-2018:0368
access.redhat.com / errata/RHSA-2018:0528
lists.debian.org / debian-lts-announce/2017/12/msg00010.html
robotattack.org
Issue TrackingThird Party Advisory
usn.ubuntu.com / 3571-1
debian.org / security/2017/dsa-4057
Issue TrackingThird Party Advisory
kb.cert.org / vuls/id/144389
Issue TrackingThird Party AdvisoryUS Government Resource
securityfocus.com / bid/102197
Third Party AdvisoryVDB Entry