CVE-2010-1321
krb5 - denial of service
EPSS 1.9%
Description
The kg_accept_krb5 function in krb5/accept_sec_context.c in the GSS-API library in MIT Kerberos 5 (aka krb5) through 1.7.1 and 1.8 before 1.8.2, as used in kadmind and other applications, does not properly check for invalid GSS-API tokens, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an AP-REQ message in which the authenticator's checksum field is missing.
How to fix CVE-2010-1321
To remediate CVE-2010-1321, upgrade the affected package to a fixed version below.
- Debian/heimdal—upgrade to 1.4.0~git20100605.dfsg.1-1 or later
- —upgrade to 1.8.1+dfsg-3 or later
- —upgrade to 1.6.dfsg.4~beta1-5lenny4 or later
Is CVE-2010-1321 being exploited?
Low — EPSS is 1.9%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.4.0~git20100605.dfsg.1-1
- from 0, < 1.8.1+dfsg-3
- from 0, < 1.6.dfsg.4~beta1-5lenny4