CVEvulnerability

CVE-2010-0433

4.3 MEDIUM Published 2010-03-05 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2010-03-05
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
Weaknesses
CWE-20

Description

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.

Affected configurations

• openssl openssl (<= 0.9.8m) • openssl openssl 0.9.8 • openssl openssl 0.9.8a • openssl openssl 0.9.8b • openssl openssl 0.9.8c • openssl openssl 0.9.8d • openssl openssl 0.9.8e • openssl openssl 0.9.8f • openssl openssl 0.9.8g • openssl openssl 0.9.8h • openssl openssl 0.9.8i • openssl openssl 0.9.8j • openssl openssl 0.9.8k • openssl openssl 0.9.8l

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References