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.

Threat-Mapped Scoring

Score: 1.9

Priority: P3 - Important (Medium)

• S9 – Sabotage of System/App
• S10 – Denial of Service (+0.1 bonus)

EPSS

Score: 0.23588
Percentile: 0.95727

CVSS Scoring

Mapped CWE(s)

• CWE-824 : Access of Uninitialized Pointer

Affected Products

• cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*
• cpe:2.3:o:fedoraproject:fedora:9:*:*:*:*:*:*:*
• cpe:2.3:o:fedoraproject:fedora:10:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*
• cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_desktop:3.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_desktop:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_eus:4.7:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_server:2.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_server:3.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_server:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_workstation:2.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_workstation:3.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_workstation:4.0:*:*:*:*:*:*:*

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