UpHeron
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Servers and applications

CVE-2011-4109

Double free vulnerability in OpenSSL 0.9.8 before 0.9.8s, when X509_V_FLAG_POLICY_CHECK is enabled, allows remote attackers to have an unspecified impact by triggering failure of a policy check.

Severity
High 9.3
Published
6 Jan 2012
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
17% in the next 30 daysHigher than 97% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-399
Attack
Over the network · No login needed
Attacker can
Read data · Change data · Take it down
CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSLServers and applications · cpe:a:openssl:openssl
  • Version 0.9.8r
  • Version 0.9.8q
  • Version 0.9.8p
  • Version 0.9.8o
All 19 release lines
  • Version 0.9.8
  • Version 0.9.8a
  • Version 0.9.8b
  • Version 0.9.8c
  • Version 0.9.8d
  • Version 0.9.8e
  • Version 0.9.8f
  • Version 0.9.8g
  • Version 0.9.8h
  • Version 0.9.8i
  • Version 0.9.8j
  • Version 0.9.8k
  • Version 0.9.8l
  • Version 0.9.8m
  • Version 0.9.8n
  • Version 0.9.8o
  • Version 0.9.8p
  • Version 0.9.8q
  • Version 0.9.8r

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-4109
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-4109