Vulnerability Monitor

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CVE-2010-0433

The kssl_keytab_is_available function in ssl/kssl.c in OpenSSL before 0.9.8n, when Kerberos is enabled but Kerberos configuration files cannot be opened, does not check a certain return value, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via SSL cipher negotiation, as demonstrated by a chroot installation of Dovecot or stunnel without Kerberos configuration files inside the chroot.

Published

2010-03-05T19:30:00.547

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.3 (MEDIUM)

CVSSv2 Vector

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
Exploitability Score

8.6

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-20
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application openssl openssl ≤ 0.9.8m Yes
Application openssl openssl 0.9.8 Yes
Application openssl openssl 0.9.8a Yes
Application openssl openssl 0.9.8b Yes
Application openssl openssl 0.9.8c Yes
Application openssl openssl 0.9.8d Yes
Application openssl openssl 0.9.8e Yes
Application openssl openssl 0.9.8f Yes
Application openssl openssl 0.9.8g Yes
Application openssl openssl 0.9.8h Yes
Application openssl openssl 0.9.8i Yes
Application openssl openssl 0.9.8j Yes
Application openssl openssl 0.9.8k Yes
Application openssl openssl 0.9.8l Yes
References