// For flags

CVE-2013-6449

openssl: crash when using TLS 1.2 caused by use of incorrect hash algorithm

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

La función ssl_get_algorithm2 en ssl/s3_lib.c en OpenSSL anterior a v1.0.2 obtiene un cierto número de versión de una estructura de datos incorrectos, lo que permite a atacantes remotos provocar una denegación de servicio (caída del demonio) a través de tráfico de red de un cliente TLS v1.2.

The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine hypervisor. It includes everything necessary to run and manage virtual machines: a subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. Upgrade Note: If you upgrade Red Hat Enterprise Virtualization Hypervisor 6.4 to version 6.5 through the 3.3 Manager administration portal, configuration of the previous system appears to be lost when reported in the TUI. However, this is an issue in the TUI itself, not in the upgrade process; the configuration of the system is not affected.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2013-11-04 CVE Reserved
  • 2013-12-23 CVE Published
  • 2024-08-06 CVE Updated
  • 2025-04-03 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-310: Cryptographic Issues
CAPEC
References (28)
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
<= 1.0.1e
Search vendor "Openssl" for product "Openssl" and version " <= 1.0.1e"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0
Search vendor "Openssl" for product "Openssl" and version "1.0.0"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0
Search vendor "Openssl" for product "Openssl" and version "1.0.0"
beta1
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0
Search vendor "Openssl" for product "Openssl" and version "1.0.0"
beta2
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0
Search vendor "Openssl" for product "Openssl" and version "1.0.0"
beta3
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0
Search vendor "Openssl" for product "Openssl" and version "1.0.0"
beta4
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0
Search vendor "Openssl" for product "Openssl" and version "1.0.0"
beta5
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0a
Search vendor "Openssl" for product "Openssl" and version "1.0.0a"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0b
Search vendor "Openssl" for product "Openssl" and version "1.0.0b"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0c
Search vendor "Openssl" for product "Openssl" and version "1.0.0c"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0d
Search vendor "Openssl" for product "Openssl" and version "1.0.0d"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0e
Search vendor "Openssl" for product "Openssl" and version "1.0.0e"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0f
Search vendor "Openssl" for product "Openssl" and version "1.0.0f"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0g
Search vendor "Openssl" for product "Openssl" and version "1.0.0g"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0h
Search vendor "Openssl" for product "Openssl" and version "1.0.0h"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0i
Search vendor "Openssl" for product "Openssl" and version "1.0.0i"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.0j
Search vendor "Openssl" for product "Openssl" and version "1.0.0j"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.1
Search vendor "Openssl" for product "Openssl" and version "1.0.1"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.1
Search vendor "Openssl" for product "Openssl" and version "1.0.1"
beta1
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.1
Search vendor "Openssl" for product "Openssl" and version "1.0.1"
beta2
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.1
Search vendor "Openssl" for product "Openssl" and version "1.0.1"
beta3
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.1a
Search vendor "Openssl" for product "Openssl" and version "1.0.1a"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.1b
Search vendor "Openssl" for product "Openssl" and version "1.0.1b"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.1c
Search vendor "Openssl" for product "Openssl" and version "1.0.1c"
-
Affected
Openssl
Search vendor "Openssl"
Openssl
Search vendor "Openssl" for product "Openssl"
1.0.1d
Search vendor "Openssl" for product "Openssl" and version "1.0.1d"
-
Affected