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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade heimdal | Nov 8, 2019 | May 15, 2019 |
| Debian | — | Upgrade heimdal | Jun 4, 2019 | May 15, 2019 |
| Suse | — | Upgrade libheimdalUpgrade libheimdal-devel | Jul 2, 2019 | May 15, 2019 |
| Ubuntu | — | Upgrade heimdal-clientsUpgrade libkrb5-26-heimdalUpgrade heimdal-clients (Ubuntu Pro)Upgrade heimdal-kdcUpgrade heimdal-kdc (Ubuntu Pro)Upgrade libkdc2-heimdalUpgrade libgssapi3-heimdal (Ubuntu Pro)Upgrade heimdal-servers-x (Ubuntu Pro)Upgrade libkrb5-26-heimdal (Ubuntu Pro)Upgrade heimdal-kcmUpgrade heimdal-serversUpgrade heimdal-clients-x (Ubuntu Pro)Upgrade heimdal-servers (Ubuntu Pro)Upgrade libgssapi3-heimdalUpgrade heimdal-kcm (Ubuntu Pro)Upgrade libkdc2-heimdal (Ubuntu Pro) | Oct 14, 2022 | May 15, 2019 |
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