CVE-2009-0847

NameCVE-2009-0847
DescriptionThe asn1buf_imbed function in the ASN.1 decoder in MIT Kerberos 5 (aka krb5) 1.6.3, when PK-INIT is used, allows remote attackers to cause a denial of service (application crash) via a crafted length value that triggers an erroneous malloc call, related to incorrect calculations with pointer arithmetic.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-1766-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
krb5 (PTS)wheezy1.10.1+dfsg-5+deb7u7fixed
wheezy (security)1.10.1+dfsg-5+deb7u8fixed
jessie (security), jessie1.12.1+dfsg-19+deb8u2fixed
stretch1.15-1+deb9u1fixed
buster, sid1.15.1-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
krb5source(unstable)1.6.dfsg.4~beta1-13medium
krb5sourceetch1.4.4-7etch7mediumDSA-1766-1
krb5sourcelenny1.6.dfsg.4~beta1-5lenny1mediumDSA-1766-1

Notes

[etch] - krb5 <not-affected> (Affected code present, but not exploitable before 1.6.3)

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