Cryptographic issues in OpenSSL - CVE-2013-6449

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Main Vulnerability Database Vulnerabilities #VU32589

Cryptographic issues in OpenSSL - CVE-2013-6449

Published: December 24, 2013 / Updated: July 28, 2020


Vulnerability identifier: #VU32589
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2013-6449
CWE-ID: CWE-310
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

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 software

OpenSSL
Gentoo Linux
Amazon Linux AMI
Slackware Linux
openssl (Alpine package)
TMS RAMSAN 710 & 810 Machine Type 9833 -AS1 & -AE1
FlashSystem 710 & 810 Machine Type 9830 -AS1 & -AE1
TMS RAMSAN 720 and 820 machine type 9834 -AS2 & AE2
IBM FlashSystem 720 and 820 Machine Type 9831 –AS2 and -AE2

How to mitigate CVE-2013-6449

Install update from vendor's website.

OpenSSL - update to 1.0.2
openssl (Alpine package) - update to 1.0.1f-r0
TMS RAMSAN 710 & 810 Machine Type 9833 -AS1 & -AE1 - update to 5.6.2
FlashSystem 710 & 810 Machine Type 9830 -AS1 & -AE1 - update to 5.6.2
TMS RAMSAN 720 and 820 machine type 9834 -AS2 & AE2 - update to 6.3.2
IBM FlashSystem 720 and 820 Machine Type 9831 –AS2 and -AE2 - update to 6.3.2

External References

Related Security Bulletins