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Fencer Vulns
critical 9.8

CVE-2016-2108 in the critical feed json

The ASN.1 implementation in OpenSSL before 1.0.1o and 1.0.2 before 1.0.2c allows remote attackers to execute arbitrary code or cause a deni…

published 2016-05-05 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-3211

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
77.9%
EPSS 77.9% chance of exploitation in 30 days, percentile 99.5%
public exploits
0
none known

Summary

The ASN.1 implementation in OpenSSL before 1.0.1o and 1.0.2 before 1.0.2c allows remote attackers to execute arbitrary code or cause a denial of service (buffer underflow and memory corruption) via an ANY field in crafted serialized data, aka the "negative zero" issue.

Patch / fix

  • openssl Debian 14, Debian 13, Debian 12 1.0.2c-1

debian advisories DEBIAN-CVE-2016-2108

  • openssl Ubuntu 14.04 LTS 1.0.1f-1ubuntu2.19
  • openssl Ubuntu 16.04 LTS 1.0.2g-1ubuntu4.1

ubuntu advisories UBUNTU-CVE-2016-2108

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

  • jbcs-httpd24-httpd jboss core services 1 2.4.23-102.jbcs.el7
  • jbcs-httpd24-mod_jk jboss core services 1 1.2.41-14.redhat_1.jbcs.el7
  • jbcs-httpd24-mod_rt jboss core services 1 2.4.1-16.GA.jbcs.el7
  • jbcs-httpd24-mod_bmx jboss core services 1 0.9.6-14.GA.jbcs.el7
  • jbcs-httpd24-mod_ssl jboss core services 1 1:2.4.23-102.jbcs.el7
  • jbcs-httpd24-nghttp2 jboss core services 1 1.12.0-9.jbcs.el7
  • jbcs-httpd24-openssl jboss core services 1 1:1.0.2h-12.jbcs.el7
  • jbcs-httpd24-mod_ldap jboss core services 1 2.4.23-102.jbcs.el7

red hat advisories RHSA-2017:0194RHSA-2017:0193RHSA-2016:2073RHSA-2016:0996RHSA-2016:0722RHSA-2016:1137

  • compat-openssl098 SLES for SAP 12 SP2, SLES for SAP 12 SP1, SLED 12 SP2 +2 more 0.9.8j-105.1
  • openssl Studio Onsite 1.3, SLES for SAP 11 SP4, SLES 11 SP4 +7 more 0.9.8j-0.105.1
  • openssl1 SLES 11-SECURITY 1.0.1g-0.57.1
  • openssl SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 1.0.1i-54.5.1
  • openssl Studio Onsite 1.3, SLES for SAP 11 SP4, SLES 11 SP4 +7 more 0.9.8j-0.97.1
  • compat-openssl098 SLES for SAP 12 SP1, SLED 12 SP1, SLED 12 +1 more 0.9.8j-97.1
  • openssl SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 1.0.1i-47.1
  • openssl SLES for SAP 12, SLES 12, SLED 12 +1 more 1.0.1i-27.16.1

suse advisories SUSE-SU-2018:0112-1SUSE-SU-2017:0601-1SUSE-SU-2017:0605-1SUSE-SU-2017:0585-1SUSE-SU-2017:0495-1SUSE-SU-2017:0461-1

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-2016-2108 updated cvss 5.6

openssl: Memory corruption in the ASN.1 encoder

  • Red Hat Enterprise Linux 4 openssl, openssl096b Red Hat Enterprise Linux 5 openssl097a Red Hat Enterprise Linux 6 openssl098e Red Hat Enterprise Linux 7 openssl098e
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Enterprise Web Server 3 openssl
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux (v. 5 server) openssl 0.9.8e-40.el5_11, openssl-perl 0.9.8e-40.el5_11
    fixed: vendor fix RHSA-2016:1137
  • Red Hat Enterprise Linux Client (v. 7) openssl 1.0.1e-51.el7_2.5, openssl-libs 1.0.1e-51.el7_2.5 Red Hat Enterprise Linux Client Optional (v. 7) openssl-perl 1.0.1e-51.el7_2.5 Red Hat Enterprise Linux ComputeNode (v. 7) openssl 1.0.1e-51.el7_2.5, openssl-libs 1.0.1e-51.el7_2.5 Red Hat Enterprise Linux ComputeNode Optional (v. 7) openssl-perl 1.0.1e-51.el7_2.5
    fixed: vendor fix RHSA-2016:0722
  • Red Hat Enterprise Linux Desktop (v. 5 client) openssl 0.9.8e-40.el5_11, openssl-perl 0.9.8e-40.el5_11
    fixed: vendor fix RHSA-2016:1137
  • Red Hat Enterprise Linux Desktop (v. 6) openssl 1.0.1e-48.el6_8.1 Red Hat Enterprise Linux Desktop Optional (v. 6) openssl-perl 1.0.1e-48.el6_8.1
    fixed: vendor fix RHSA-2016:0996
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) openssl 0.9.8e-40.el5_11
    fixed: vendor fix RHSA-2016:1137
  • Red Hat Enterprise Linux HPC Node (v. 6) openssl 1.0.1e-48.el6_8.1
    fixed: vendor fix RHSA-2016:0996
show 18 more
  • Red Hat Enterprise Linux HPC Node EUS (v. 6.7) openssl 1.0.1e-42.el6_7.5
    fixed: vendor fix RHSA-2016:2073
  • Red Hat Enterprise Linux HPC Node Optional (v. 6) openssl-perl 1.0.1e-48.el6_8.1
    fixed: vendor fix RHSA-2016:0996
  • Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) openssl-perl 1.0.1e-42.el6_7.5
    fixed: vendor fix RHSA-2016:2073
  • Red Hat Enterprise Linux Server (v. 6) openssl 1.0.1e-48.el6_8.1
    fixed: vendor fix RHSA-2016:0996
  • Red Hat Enterprise Linux Server (v. 7) openssl 1.0.1e-51.el7_2.5, openssl-libs 1.0.1e-51.el7_2.5
    fixed: vendor fix RHSA-2016:0722
  • Red Hat Enterprise Linux Server EUS (v. 6.7) openssl 1.0.1e-42.el6_7.5
    fixed: vendor fix RHSA-2016:2073
  • Red Hat Enterprise Linux Server Optional (v. 6) openssl-perl 1.0.1e-48.el6_8.1
    fixed: vendor fix RHSA-2016:0996
  • Red Hat Enterprise Linux Server Optional (v. 7) openssl-perl 1.0.1e-51.el7_2.5
    fixed: vendor fix RHSA-2016:0722
  • Red Hat Enterprise Linux Server Optional EUS (v. 6.7) openssl-perl 1.0.1e-42.el6_7.5
    fixed: vendor fix RHSA-2016:2073
  • Red Hat Enterprise Linux Workstation (v. 6) openssl 1.0.1e-48.el6_8.1
    fixed: vendor fix RHSA-2016:0996
  • Red Hat Enterprise Linux Workstation (v. 7) openssl 1.0.1e-51.el7_2.5, openssl-libs 1.0.1e-51.el7_2.5
    fixed: vendor fix RHSA-2016:0722
  • Red Hat Enterprise Linux Workstation Optional (v. 6) openssl-perl 1.0.1e-48.el6_8.1
    fixed: vendor fix RHSA-2016:0996
  • Red Hat Enterprise Linux Workstation Optional (v. 7) openssl-perl 1.0.1e-51.el7_2.5
    fixed: vendor fix RHSA-2016:0722
  • Red Hat JBoss Core Services
    fixed: vendor fix RHSA-2016:2957
  • Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-httpd 2.4.23-102.jbcs.el6, jbcs-httpd24-nghttp2 1.12.0-9.jbcs.el6, jbcs-httpd24-openssl 1.0.2h-12.jbcs.el6, jbcs-httpd24-mod_rt 2.4.1-16.GA.jbcs.el6, jbcs-httpd24-mod_ssl 2.4.23-102.jbcs.el6, jbcs-httpd24-mod_bmx 0.9.6-14.GA.jbcs.el6, +21 more
    fixed: vendor fix RHSA-2017:0193
  • Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-httpd 2.4.23-102.jbcs.el7, jbcs-httpd24-nghttp2 1.12.0-9.jbcs.el7, jbcs-httpd24-openssl 1.0.2h-12.jbcs.el7, jbcs-httpd24-mod_rt 2.4.1-16.GA.jbcs.el7, jbcs-httpd24-mod_ssl 2.4.23-102.jbcs.el7, jbcs-httpd24-mod_bmx 0.9.6-14.GA.jbcs.el7, +19 more
    fixed: vendor fix RHSA-2017:0194
  • Red Hat JBoss Enterprise Application Platform 6.4
    fixed: vendor fix RHSA-2016:2056
  • Red Hat JBoss Enterprise Application Platform 5 openssl Red Hat JBoss Enterprise Web Server 2 openssl
    not affected: vulnerable code not present

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

cisa ICSA-22-349-21 updated cvss 9.8

Siemens SCALANCE X-200RNA Switch Devices

  • Siemens SCALANCE X204RNA (HSR) (6GK5204-0BA00-2MB2) <V3.2.7 Siemens SCALANCE X204RNA (PRP) (6GK5204-0BA00-2KB2) <V3.2.7 Siemens SCALANCE X204RNA EEC (HSR) (6GK5204-0BS00-2NA3) <V3.2.7 Siemens SCALANCE X204RNA EEC (PRP) (6GK5204-0BS00-3LA3) <V3.2.7 Siemens SCALANCE X204RNA EEC (PRP/HSR) (6GK5204-0BS00-3PA3) <V3.2.7
    affected: fixed in V3.2.7, mitigation support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

77.91% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Technology feeds

References

Sources

Fencer Vulns 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.