MEDIUM
openssl: crash when using TLS 1.2 caused by use of incorrect hash algorithm
Published Dec 23, 2013
4.3
MEDIUMCVSS 2.0
EPSS 21.17%
Description
The ssl_get_algorithm2 function in ssl/s3_lib.c in OpenSSL before 1.0.2 obtains a certain version number from an incorrect data structure, which allows remote attackers to cause a denial of service (daemon crash) via crafted traffic from a TLS 1.2 client.
Affected products
No data.
OR
- ≤ 1.0.1e
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0a
- 1.0.0b
- 1.0.0c
- 1.0.0d
- 1.0.0e
- 1.0.0f
- 1.0.0g
- 1.0.0h
- 1.0.0i
- 1.0.0j
- 1.0.1
- 1.0.1
- 1.0.1
- 1.0.1
- 1.0.1a
- 1.0.1b
- 1.0.1c
- 1.0.1d
No data.
RHEV 3.X Hypervisor and Agents for RHEL-6
rhev-hypervisor6-0:6.5-20140112.0.el6ev
Fixed · RHSA-2014:0041
Red Hat Enterprise Linux 6
openssl-0:1.0.1e-16.el6_5.4
Fixed · RHSA-2014:0015
Red Hat Enterprise Linux 4
openssl
Not affected
Red Hat Enterprise Linux 5
openssl
Not affected
Red Hat Enterprise Linux 5
openssl097a
Not affected
Red Hat Enterprise Linux 6
openssl098e
Not affected
Red Hat Enterprise Linux 7
openssl
Not affected
Red Hat Enterprise Linux 7
openssl098e
Not affected
Red Hat JBoss Enterprise Application Platform 5
openssl
Not affected
Red Hat JBoss Enterprise Application Platform 6
openssl
Not affected
Red Hat JBoss Enterprise Web Server 1
openssl
Not affected
Red Hat JBoss Enterprise Web Server 2
openssl
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| RHEV 3.X Hypervisor and Agents for RHEL-6 | rhev-hypervisor6-0:6.5-20140112.0.el6ev | Fixed | RHSA-2014:0041 |
| Red Hat Enterprise Linux 6 | openssl-0:1.0.1e-16.el6_5.4 | Fixed | RHSA-2014:0015 |
| Red Hat Enterprise Linux 4 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 5 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 5 | openssl097a | Not affected | n/a |
| Red Hat Enterprise Linux 6 | openssl098e | Not affected | n/a |
| Red Hat Enterprise Linux 7 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 7 | openssl098e | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 5 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 1 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 2 | openssl | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of openssl as shipped with Red Hat Enterprise Linux 5 and earlier.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
21.17% 0.21174
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.21174
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (60 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 21.17% (0.21174) | 97.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 21.17% (0.21174) | 97.26th | v5 (v2026.06.15) |
| Mar 4, 2026 | 46.98% (0.46976) | 97.60th | v4 (v2025.03.14) |
| Mar 1, 2026 | 19.95% (0.19947) | 95.37th | v4 (v2025.03.14) |
| Feb 12, 2026 | 50.23% (0.50232) | 97.76th | v4 (v2025.03.14) |
| Feb 4, 2026 | 49.05% (0.49053) | 97.68th | v4 (v2025.03.14) |
| Feb 1, 2026 | 21.45% (0.21448) | 95.59th | v4 (v2025.03.14) |
| Jan 4, 2026 | 49.05% (0.49053) | 97.66th | v4 (v2025.03.14) |
| Jan 1, 2026 | 21.45% (0.21448) | 95.56th | v4 (v2025.03.14) |
| Dec 28, 2025 | 49.05% (0.49053) | 97.66th | v4 (v2025.03.14) |
| Dec 27, 2025 | 34.27% (0.34270) | 96.85th | v4 (v2025.03.14) |
| Dec 14, 2025 | 49.05% (0.49053) | 97.65th | v4 (v2025.03.14) |
| Dec 11, 2025 | 57.76% (0.57758) | 98.06th | v4 (v2025.03.14) |
| Dec 4, 2025 | 43.55% (0.43546) | 97.36th | v4 (v2025.03.14) |
| Dec 1, 2025 | 17.10% (0.17099) | 94.77th | v4 (v2025.03.14) |
| Nov 25, 2025 | 43.55% (0.43546) | 97.36th | v4 (v2025.03.14) |
| Nov 4, 2025 | 53.09% (0.53091) | 97.83th | v4 (v2025.03.14) |
| Nov 1, 2025 | 24.34% (0.24335) | 95.88th | v4 (v2025.03.14) |
| Oct 28, 2025 | 53.09% (0.53091) | 97.82th | v4 (v2025.03.14) |
| Oct 27, 2025 | 38.24% (0.38240) | 97.06th | v4 (v2025.03.14) |
| Oct 22, 2025 | 53.09% (0.53091) | 97.80th | v4 (v2025.03.14) |
| Oct 4, 2025 | 56.01% (0.56007) | 98.02th | v4 (v2025.03.14) |
| Oct 1, 2025 | 26.98% (0.26980) | 96.22th | v4 (v2025.03.14) |
| Sep 4, 2025 | 41.25% (0.41253) | 97.31th | v4 (v2025.03.14) |
| Sep 1, 2025 | 14.74% (0.14741) | 94.28th | v4 (v2025.03.14) |
| Aug 13, 2025 | 41.25% (0.41253) | 97.28th | v4 (v2025.03.14) |
| Aug 5, 2025 | 45.13% (0.45133) | 97.49th | v4 (v2025.03.14) |
| Aug 1, 2025 | 17.05% (0.17046) | 94.75th | v4 (v2025.03.14) |
| Jul 30, 2025 | 45.13% (0.45133) | 97.49th | v4 (v2025.03.14) |
| Jul 4, 2025 | 59.59% (0.59591) | 98.13th | v4 (v2025.03.14) |
| Jul 1, 2025 | 30.38% (0.30382) | 96.49th | v4 (v2025.03.14) |
| Jun 6, 2025 | 59.59% (0.59591) | 98.11th | v4 (v2025.03.14) |
| Jun 1, 2025 | 30.38% (0.30382) | 96.46th | v4 (v2025.03.14) |
| May 4, 2025 | 60.21% (0.60210) | 98.13th | v4 (v2025.03.14) |
| May 1, 2025 | 31.01% (0.31007) | 96.48th | v4 (v2025.03.14) |
| Apr 13, 2025 | 60.21% (0.60210) | 98.12th | v4 (v2025.03.14) |
| Apr 12, 2025 | 31.01% (0.31007) | 96.38th | v4 (v2025.03.14) |
| Apr 3, 2025 | 60.21% (0.60210) | 98.11th | v4 (v2025.03.14) |
| Apr 2, 2025 | 64.44% (0.64445) | 98.31th | v4 (v2025.03.14) |
| Apr 1, 2025 | 35.96% (0.35964) | 96.77th | v4 (v2025.03.14) |
| Mar 31, 2025 | 64.44% (0.64445) | 98.30th | v4 (v2025.03.14) |
| Mar 30, 2025 | 53.32% (0.53317) | 97.75th | v4 (v2025.03.14) |
| Mar 29, 2025 | 65.70% (0.65700) | 97.92th | v4 (v2025.03.14) |
| Mar 25, 2025 | 53.32% (0.53317) | 97.76th | v4 (v2025.03.14) |
| Mar 24, 2025 | 24.94% (0.24939) | 95.68th | v4 (v2025.03.14) |
| Mar 21, 2025 | 53.32% (0.53317) | 97.78th | v4 (v2025.03.14) |
| Mar 17, 2025 | 59.09% (0.59090) | 98.02th | v4 (v2025.03.14) |
| Dec 12, 2024 | 92.10% (0.92097) | 99.08th | v3 (v2023.03.01) |
| Jul 10, 2024 | 92.10% (0.92097) | 98.97th | v3 (v2023.03.01) |
| May 17, 2024 | 90.00% (0.89999) | 98.77th | v3 (v2023.03.01) |
| Feb 9, 2024 | 90.62% (0.90621) | 98.71th | v3 (v2023.03.01) |
| Dec 22, 2023 | 92.10% (0.92097) | 98.72th | v3 (v2023.03.01) |
| Nov 5, 2023 | 93.25% (0.93249) | 98.79th | v3 (v2023.03.01) |
| Aug 5, 2023 | 94.15% (0.94148) | 98.81th | v3 (v2023.03.01) |
| Jun 19, 2023 | 93.70% (0.93701) | 98.69th | v3 (v2023.03.01) |
| Mar 9, 2023 | 93.68% (0.93684) | 98.54th | v3 (v2023.03.01) |
| Mar 7, 2023 | 94.88% (0.94884) | 98.78th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.56% (0.07559) | 92.87th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.56% (0.07559) | 92.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.56% (0.07559) | 81.11th | v2 (v2022.01.01) |
Weaknesses (1)
References (30)
- http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=ca989269a2876bae79393bd54c3e72d49975fc75 x_refsource_CONFIRM
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124833.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124854.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124858.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00006.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00009.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00012.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00031.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2014-0015.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2014-0041.html vendor-advisoryx_refsource_REDHAT
- http://rt.openssl.org/Ticket/Display.html?id=3200&user=guest&pass=guest x_refsource_CONFIRM
- http://seclists.org/fulldisclosure/2014/Dec/23 mailing-listx_refsource_FULLDISC
- http://security.gentoo.org/glsa/glsa-201412-39.xml vendor-advisoryx_refsource_GENTOO
- http://www-01.ibm.com/support/docview.wss?uid=isg400001841 x_refsource_CONFIRM
- http://www-01.ibm.com/support/docview.wss?uid=isg400001843 x_refsource_CONFIRM
- http://www.debian.org/security/2014/dsa-2833 vendor-advisoryx_refsource_DEBIAN
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html x_refsource_CONFIRM
- http://www.securityfocus.com/archive/1/534161/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/64530 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1029548 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2079-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html x_refsource_CONFIRM
- https://access.redhat.com/security/cve/CVE-2013-6449 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1045363 x_refsource_CONFIRMIssue Tracking
- https://issues.apache.org/jira/browse/TS-2355 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2013-6449
- https://www.cve.org/CVERecord?id=CVE-2013-6449
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Dec 23, 2013
Updated Aug 6, 2024
Reserved Nov 4, 2013
Link CVE-2013-6449
CISA Vulnrichment
Updated n/a