Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openssl | 1.0.2d-1 | — |
| Debian 13 | openssl | 1.0.2d-1 | — |
| Debian 12 | openssl | 1.0.2d-1 | — |
| Debian 8 | openssl | 1.0.1k-3+deb8u2 | DSA-3413-1 |
| Debian 7 | openssl | 1.0.1e-2+deb7u18 | DSA-3413-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | openssl | 1.0.1f-1ubuntu2.16 | USN-2830-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | openssl +4 | 1:1.0.1e-51.el7_2.1 | RHSA-2015:2617 |
| RHEL 6 | openssl +3 | 1.0.1e-42.el6_7.1 | RHSA-2015:2617 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | openssl | 1.0.1i-36.1 | SUSE-SU-2015:2230-1 |
| SLES 12 | openssl | 1.0.1i-27.6.1 | SUSE-SU-2015:2237-1 |
| SLES 11 | openssl1 | 1.0.1g-0.35.1 | SUSE-SU-2015:2253-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | openssl | 1.0.1i-36.1 | SUSE-SU-2015:2230-1 |
| SLES for SAP 12 | openssl | 1.0.1i-27.6.1 | SUSE-SU-2015:2237-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openssl-1_1 | 1.1.1l-1.2 | openSUSE-SU-2024:11127-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | openssl +4 | 1:1.0.1e-51.el7_2.1 | ELSA-2015-2617 |
Advisories 10
- RHSA-2015:2617 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- USN-2830-1 openssl vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3413-1 openssl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2015:2237-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:2230-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:2253-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11127-1 libopenssl-1_1-devel-1.1.1l-1.2 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- ICSA-22-349-21 Siemens SCALANCE X-200RNA Switch Devices CISA ICS & IT advisories · Dec 13, 2022
- SSA-412672 SSA-412672: Multiple OpenSSL and OpenSSH Vulnerabilities in SCALANCE X-200RNA Switch Devices before V3.2.7 Siemens ProductCERT · Dec 13, 2022
- ELSA-2015-2617 Moderate: openssl security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Dec 14, 2015
References
- 20151204 Multiple Vulnerabilities in OpenSSL (December 2015) Affecting Cisco Products vendor-advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04944173
- openSUSE-SU-2015:2288 vendor-advisory
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=3c66a669dfc7b3792f7af0758ea26fe8502ce70c
- RHSA-2015:2617 vendor-advisory
- http://www.fortiguard.com/advisory/openssl-advisory-december-2015
- SSA:2015-349-04 vendor-advisory
- 78622 vdb-entry
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40100
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
- HPSBGN03536 vendor-advisory
- USN-2830-1 vendor-advisory
- openSUSE-SU-2015:2289 vendor-advisory
- FEDORA-2015-d87d60b9a9 vendor-advisory
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
- RHSA-2016:2957 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
- http://openssl.org/news/secadv/20151203.txt
- 1034294 vdb-entry
- http://fortiguard.com/advisory/openssl-advisory-december-2015
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05398322
- DSA-3413 vendor-advisory
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf