4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.08 Low
EPSS
Percentile
94.2%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | openssl | <ย 3.0.11-1~deb12u2 | openssl_3.0.11-1~deb12u2_all.deb |
Debian | 11 | all | openssl | <ย 1.1.1w-0+deb11u1 | openssl_1.1.1w-0+deb11u1_all.deb |
Debian | 10 | all | openssl | <ย 1.1.1n-0+deb10u3 | openssl_1.1.1n-0+deb10u3_all.deb |
Debian | 999 | all | openssl | <ย 3.2.1-3 | openssl_3.2.1-3_all.deb |
Debian | 13 | all | openssl | <ย 3.2.1-3 | openssl_3.2.1-3_all.deb |