# CVE-2019-12098: heimdal-clients: In the client side of Heimdal before 7.6.0, failure to verify anonymous PKINIT PA-PKINIT-KX key exchange permits a ma... CVE-2019-12098 is fixed in 22 products on 1 platform, first by heimdal-clients 7.5.0+dfsg-1ubuntu0.1, released October 6, 2022. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2019-12098 - Priority: Routine - CVSS: n/a (Low) - EPSS: 0.0197 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: May 15, 2019 ## Description In the client side of Heimdal before 7.6.0, failure to verify anonymous PKINIT PA-PKINIT-KX key exchange permits a man-in-the-middle attack. This issue is in krb5_init_creds_step in lib/krb5/init_creds_pw.c. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | heimdal-clients Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [heimdal-clients 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-heimdal-clients-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | heimdal-docs Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [heimdal-docs 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-heimdal-docs-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | heimdal-kcm Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [heimdal-kcm 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-heimdal-kcm-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | heimdal-kdc Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [heimdal-kdc 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-heimdal-kdc-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | heimdal-multidev Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [heimdal-multidev 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-heimdal-multidev-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | heimdal-servers Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [heimdal-servers 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-heimdal-servers-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libasn1-8-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libasn1-8-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libasn1-8-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libgssapi3-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libgssapi3-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libgssapi3-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libhcrypto4-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libhcrypto4-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libhcrypto4-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libhdb9-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libhdb9-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libhdb9-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libheimbase1-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libheimbase1-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libheimbase1-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libheimntlm0-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libheimntlm0-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libheimntlm0-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libhx509-5-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libhx509-5-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libhx509-5-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libkadm5clnt7-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libkadm5clnt7-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libkadm5clnt7-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libkadm5srv8-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libkadm5srv8-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libkadm5srv8-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libkafs0-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libkafs0-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libkafs0-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libkdc2-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libkdc2-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libkdc2-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libkrb5-26-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libkrb5-26-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libkrb5-26-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libotp0-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libotp0-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libotp0-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libroken18-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libroken18-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libroken18-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libsl0-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libsl0-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsl0-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | | Linux | libwind0-heimdal Ubuntu 18.04.6 LTS (bionic) | 7.5.0+dfsg-1ubuntu0.1 | [libwind0-heimdal 7.5.0+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libwind0-heimdal-7.5.0-dfsg-1ubuntu0.1.md) | Oct 6, 2022 | --- Data as of 2026-11-08T06:59:42Z UTC. 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