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Fencer Intel
medium 4.3

CVE-2015-3196 json

ssl/s3_clnt.c in OpenSSL 1.0.0 before 1.0.0t, 1.0.1 before 1.0.1p, and 1.0.2 before 1.0.2d, when used for a multi-threaded client, writes t…

published 2015-12-06 10 y ago modified 2026-06-17 4 mo ago also EUVD-2015-3263

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
13.5%
EPSS 13.5% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

ssl/s3_clnt.c in OpenSSL 1.0.0 before 1.0.0t, 1.0.1 before 1.0.1p, and 1.0.2 before 1.0.2d, when used for a multi-threaded client, writes the PSK identity hint to an incorrect data structure, which allows remote servers to cause a denial of service (race condition and double free) via a crafted ServerKeyExchange message.

Patch / fix

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

debian advisories DEBIAN-CVE-2015-3196

  • openssl Ubuntu 14.04 LTS 1.0.1f-1ubuntu2.16

ubuntu advisories UBUNTU-CVE-2015-3196

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

  • openssl RHEL 6 1.0.1e-42.el6_7.1
  • openssl RHEL 7 1:1.0.1e-51.el7_2.1
  • openssl-libs RHEL 7 1:1.0.1e-51.el7_2.1
  • openssl-perl RHEL 6 1.0.1e-42.el6_7.1
  • openssl-perl RHEL 7 1:1.0.1e-51.el7_2.1

red hat advisories RHSA-2015:2617

  • openssl1 SLES 11-SECURITY 1.0.1g-0.35.1
  • openssl SLES for SAP 12, SLES 12, SLED 12 +1 more 1.0.1i-27.6.1
  • openssl SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 1.0.1i-36.1

suse advisories SUSE-SU-2015:2253-1SUSE-SU-2015:2237-1SUSE-SU-2015:2230-1

  • openssl-1_1 openSUSE Tumbleweed 1.1.1l-1.2

opensuse advisories openSUSE-SU-2024:11127-1

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-2015-3196 updated cvss 4.3

OpenSSL: Race condition handling PSK identify hint

  • Red Hat JBoss Core Services jbcs-httpd24-openssl
    affected: no fix available
  • Red Hat JBoss Enterprise Web Server 3 openssl
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux Client (v. 7) openssl 1.0.1e-51.el7_2.1, openssl-libs 1.0.1e-51.el7_2.1 Red Hat Enterprise Linux Client Optional (v. 7) openssl-perl 1.0.1e-51.el7_2.1 Red Hat Enterprise Linux ComputeNode (v. 7) openssl 1.0.1e-51.el7_2.1, openssl-libs 1.0.1e-51.el7_2.1 Red Hat Enterprise Linux ComputeNode Optional (v. 7) openssl-perl 1.0.1e-51.el7_2.1 Red Hat Enterprise Linux Desktop (v. 6) openssl 1.0.1e-42.el6_7.1 Red Hat Enterprise Linux Desktop Optional (v. 6) openssl-perl 1.0.1e-42.el6_7.1
    +10 more products
    Red Hat Enterprise Linux HPC Node (v. 6) openssl 1.0.1e-42.el6_7.1 Red Hat Enterprise Linux HPC Node Optional (v. 6) openssl-perl 1.0.1e-42.el6_7.1 Red Hat Enterprise Linux Server (v. 6) openssl 1.0.1e-42.el6_7.1 Red Hat Enterprise Linux Server (v. 7) openssl 1.0.1e-51.el7_2.1, openssl-libs 1.0.1e-51.el7_2.1 Red Hat Enterprise Linux Server Optional (v. 6) openssl-perl 1.0.1e-42.el6_7.1 Red Hat Enterprise Linux Server Optional (v. 7) openssl-perl 1.0.1e-51.el7_2.1 Red Hat Enterprise Linux Workstation (v. 6) openssl 1.0.1e-42.el6_7.1 Red Hat Enterprise Linux Workstation (v. 7) openssl 1.0.1e-51.el7_2.1, openssl-libs 1.0.1e-51.el7_2.1 Red Hat Enterprise Linux Workstation Optional (v. 6) openssl-perl 1.0.1e-42.el6_7.1 Red Hat Enterprise Linux Workstation Optional (v. 7) openssl-perl 1.0.1e-51.el7_2.1
    fixed: vendor fix RHSA-2015:2617
  • Red Hat JBoss Core Services
    fixed: vendor fix RHSA-2016:2957
  • Red Hat Enterprise Linux 5 openssl, openssl097a Red Hat Enterprise Linux 6 openssl098e Red Hat Enterprise Linux 7 openssl098e Red Hat JBoss Enterprise Application Platform 6 openssl Red Hat JBoss Enterprise Web Server 1 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 5.3

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

13.53% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
Technology feeds

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.