CVE-2009-0846

Description

The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before 1.6.4 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer.

How to fix CVE-2009-0846

To remediate CVE-2009-0846, upgrade the affected package to a fixed version below.

• Debian/krb5—upgrade to 1.6.dfsg.4~beta1-13 or later

Is CVE-2009-0846 being exploited?

Likely — EPSS is 51.9%, placing CVE-2009-0846 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.

Affected packages (1)

• from 0, < 1.6.dfsg.4~beta1-13

References (1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2009-0846