Heimdal is an implementation of ASN.1/DER, PKIX, and Kerberos. Versions prior to 7.7.1 are vulnerable to a denial of service vulnerability in Heimdal's PKI certificate validation library, affecting the KDC (via PKINIT) and kinit (via PKINIT), as well as any third-party applications using Heimdal's libhx509. Users should upgrade to Heimdal 7.7.1 or 7.8. There are no known workarounds for this issue.
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{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "libasn1-8-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-servers": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libotp0-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libhx509-5-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libgssapi3-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libheimbase1-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-dbg": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libheimntlm0-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-kcm": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libheimbase1-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libotp0-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-multidev-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libhcrypto4-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libhdb9-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-dev": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libkdc2-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-kdc": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-kcm-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libsl0-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libkadm5clnt7-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-kdc-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libkadm5clnt7-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libasn1-8-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-clients": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libhdb9-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libgssapi3-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libkafs0-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libkadm5srv8-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libkadm5srv8-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libsl0-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-clients-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-servers-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libkrb5-26-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-docs": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libkrb5-26-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libwind0-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libroken18-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libkafs0-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libhcrypto4-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libwind0-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libheimntlm0-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-dev-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libhx509-5-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libroken18-heimdal-dbgsym": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "libkdc2-heimdal": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2", "heimdal-multidev": "1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libasn1-8-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libhdb9-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libhcrypto4-heimdal": "7.5.0+dfsg-1ubuntu0.2", "libhx509-5-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libgssapi3-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libheimbase1-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libheimntlm0-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libotp0-heimdal": "7.5.0+dfsg-1ubuntu0.2", "heimdal-kcm": "7.5.0+dfsg-1ubuntu0.2", "libheimbase1-heimdal": "7.5.0+dfsg-1ubuntu0.2", "libotp0-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "heimdal-multidev-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "heimdal-servers": "7.5.0+dfsg-1ubuntu0.2", "heimdal-dev": "7.5.0+dfsg-1ubuntu0.2", "libkdc2-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "heimdal-kcm-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "heimdal-kdc": "7.5.0+dfsg-1ubuntu0.2", "libsl0-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libkadm5clnt7-heimdal": "7.5.0+dfsg-1ubuntu0.2", "heimdal-kdc-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libkadm5clnt7-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libasn1-8-heimdal": "7.5.0+dfsg-1ubuntu0.2", "heimdal-clients": "7.5.0+dfsg-1ubuntu0.2", "libhdb9-heimdal": "7.5.0+dfsg-1ubuntu0.2", "libgssapi3-heimdal": "7.5.0+dfsg-1ubuntu0.2", "libkafs0-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libkadm5srv8-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libkadm5srv8-heimdal": "7.5.0+dfsg-1ubuntu0.2", "libsl0-heimdal": "7.5.0+dfsg-1ubuntu0.2", "heimdal-clients-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "heimdal-servers-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libkrb5-26-heimdal": "7.5.0+dfsg-1ubuntu0.2", "heimdal-docs": "7.5.0+dfsg-1ubuntu0.2", "libkrb5-26-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libwind0-heimdal": "7.5.0+dfsg-1ubuntu0.2", "libroken18-heimdal": "7.5.0+dfsg-1ubuntu0.2", "libkafs0-heimdal": "7.5.0+dfsg-1ubuntu0.2", "libhcrypto4-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libwind0-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libheimntlm0-heimdal": "7.5.0+dfsg-1ubuntu0.2", "libroken18-heimdal-dbgsym": "7.5.0+dfsg-1ubuntu0.2", "libhx509-5-heimdal": "7.5.0+dfsg-1ubuntu0.2", "libkdc2-heimdal": "7.5.0+dfsg-1ubuntu0.2", "heimdal-multidev": "7.5.0+dfsg-1ubuntu0.2" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libasn1-8-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libhdb9-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libhcrypto4-heimdal": "7.7.0+dfsg-1ubuntu1.2", "libhx509-5-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libgssapi3-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libheimbase1-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libheimntlm0-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libotp0-heimdal": "7.7.0+dfsg-1ubuntu1.2", "heimdal-kcm": "7.7.0+dfsg-1ubuntu1.2", "libheimbase1-heimdal": "7.7.0+dfsg-1ubuntu1.2", "libotp0-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "heimdal-multidev-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "heimdal-servers": "7.7.0+dfsg-1ubuntu1.2", "heimdal-dev": "7.7.0+dfsg-1ubuntu1.2", "libkdc2-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "heimdal-kcm-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "heimdal-kdc": "7.7.0+dfsg-1ubuntu1.2", "libsl0-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libkadm5clnt7-heimdal": "7.7.0+dfsg-1ubuntu1.2", "heimdal-kdc-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libkadm5clnt7-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libasn1-8-heimdal": "7.7.0+dfsg-1ubuntu1.2", "heimdal-clients": "7.7.0+dfsg-1ubuntu1.2", "libhdb9-heimdal": "7.7.0+dfsg-1ubuntu1.2", "libgssapi3-heimdal": "7.7.0+dfsg-1ubuntu1.2", "libkafs0-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libkadm5srv8-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libkadm5srv8-heimdal": "7.7.0+dfsg-1ubuntu1.2", "libsl0-heimdal": "7.7.0+dfsg-1ubuntu1.2", "heimdal-clients-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "heimdal-servers-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libkrb5-26-heimdal": "7.7.0+dfsg-1ubuntu1.2", "heimdal-docs": "7.7.0+dfsg-1ubuntu1.2", "libkrb5-26-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libwind0-heimdal": "7.7.0+dfsg-1ubuntu1.2", "libroken18-heimdal": "7.7.0+dfsg-1ubuntu1.2", "libkafs0-heimdal": "7.7.0+dfsg-1ubuntu1.2", "libhcrypto4-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libwind0-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libheimntlm0-heimdal": "7.7.0+dfsg-1ubuntu1.2", "libroken18-heimdal-dbgsym": "7.7.0+dfsg-1ubuntu1.2", "libhx509-5-heimdal": "7.7.0+dfsg-1ubuntu1.2", "libkdc2-heimdal": "7.7.0+dfsg-1ubuntu1.2", "heimdal-multidev": "7.7.0+dfsg-1ubuntu1.2" } ] }