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Servers and applications

CVE-2013-6449

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.

Severity
Medium 4.3
Published
23 Dec 2013
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSLServers and applications · cpe:a:openssl:openssl
  • Version 1.0.1d
  • Version 1.0.1c
  • Version 1.0.1b
  • Version 1.0.1a
All 25 release lines
  • Every version up to 1.0.1e
  • Version 1.0.0-beta1
  • Version 1.0.0-beta2
  • Version 1.0.0-beta3
  • Version 1.0.0-beta4
  • Version 1.0.0-beta5
  • Version 1.0.0
  • Version 1.0.0a
  • Version 1.0.0b
  • Version 1.0.0c
  • Version 1.0.0d
  • Version 1.0.0e
  • Version 1.0.0f
  • Version 1.0.0g
  • Version 1.0.0h
  • Version 1.0.0i
  • Version 1.0.0j
  • Version 1.0.1-beta1
  • Version 1.0.1-beta2
  • Version 1.0.1-beta3
  • Version 1.0.1
  • Version 1.0.1a
  • Version 1.0.1b
  • Version 1.0.1c
  • Version 1.0.1d

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2013-6449
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2013-6449