Improper input validation in Mit Kerberos
CVE-2009-0845
The spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3, when SPNEGO is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via invalid ContextFlags data in the reqFlags field in a negTokenInit token.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.056 (92.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.056 · newest: 0.056 · change: 0.000
Affected products
- Mit Kerberos — versions 5-1.6.3
- Mit Kerberos 5 — versions 1.5, 1.5.1, 1.5.2
Weakness classification (CWE)
References
- support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
- www.securityfocus.com/archive/1/502526/100/0/threaded (mailing-list)
- www.kb.cert.org/vuls/id/662091 (US Government Resource, third-party-advisory)
- www.securityfocus.com/bid/34257 (vdb-entry)
- www.vupen.com/english/advisories/2009/0847 (vdb-entry, Vendor Advisory)
- secunia.com/advisories/34347 (Vendor Advisory, third-party-advisory)
- support.apple.com/kb/HT3549
- support.avaya.com/elmodocs2/security/ASA-2009-142.htm
- src.mit.edu/fisheye/browse/krb5/trunk/src/lib/gssapi/spnego/spnego_mech.c (Exploit)
- www.redhat.com/support/errata/RHSA-2009-0408.html (vendor-advisory)