Improper input validation in OpenSSL
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.079 (94.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.079 · newest: 0.079 · change: 0.000
Affected products
- OpenSSL — versions 0.9.8l, 0.9.8a, 0.9.8e
Weakness classification (CWE)
Public proof-of-concept exploits
References
- aix.software.ibm.com/aix/efixes/security/openssl_advisory.asc
- cvs.openssl.org/chngview
- groups.google.com/group/mailing.openssl.users/browse_thread/thread/c3e1ab0034ca…
- lists.fedoraproject.org/pipermail/package-announce/2010-April/038587.html (vendor-advisory)
- lists.fedoraproject.org/pipermail/package-announce/2010-April/039561.html (vendor-advisory)
- marc.info/ (vendor-advisory)
- marc.info/ (vendor-advisory)
- secunia.com/advisories/39461 (third-party-advisory)
- secunia.com/advisories/39932 (third-party-advisory)
- secunia.com/advisories/42724 (third-party-advisory)
Frequently asked questions
- What is CVE-2010-0433?
- CVE-2010-0433 is a vulnerability in OpenSSL, classified under Improper Input Validation. Published 2010-03-05.
- Is CVE-2010-0433 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.