CVE-2021-44758
Fixed in a distro release EPSS 1%CVSS 7.5
Heimdal before 7.7.1 allows attackers to cause a NULL pointer dereference in a SPNEGO acceptor via a preferred_mech_type of GSS_C_NO_OID and a nonzero initial_response value to send_accept.
Products: heimdal_project heimdal
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.14 | heimdal | 7.7.1-r0 |
| Alpine 3.15 | heimdal | 7.7.1-r0 |
| Alpine 3.16 | heimdal | 7.7.1-r0 |
| Alpine 3.17 | heimdal | 7.7.1-r0 |
| Alpine 3.18 | heimdal | 7.7.1-r0 |
| Alpine 3.19 | heimdal | 7.7.1-r0 |
| Alpine 3.20 | heimdal | 7.7.1-r0 |
| Alpine 3.21 | heimdal | 7.7.1-r0 |
| Alpine 3.22 | heimdal | 7.7.1-r0 |
| Alpine 3.23 | heimdal | 7.7.1-r0 |
| Alpine 3.24 | heimdal | 7.7.1-r0 |
| Debian 10 | heimdal | 7.5.0+dfsg-3+deb10u1 |
| Debian 11 | heimdal | 7.7.0+dfsg-2+deb11u2 |
| Debian 12 | heimdal | 7.8.git20221115.a6cf945+dfsg-1 |
| Debian 13 | heimdal | 7.8.git20221115.a6cf945+dfsg-1 |
| Debian 14 | heimdal | 7.8.git20221115.a6cf945+dfsg-1 |
| SUSE Package Hub 15 SP3 | libheimdal | 7.8.0-bp153.2.4.1 |
| SUSE Package Hub 15 SP4 | libheimdal | 7.8.0-bp154.2.4.1 |
| Ubuntu 18.04 LTS | heimdal | 7.5.0+dfsg-1ubuntu0.3 |
| Ubuntu 20.04 LTS | heimdal | 7.7.0+dfsg-1ubuntu1.3 |
| Ubuntu 22.04 LTS | heimdal | no fix |
| Ubuntu 24.04 LTS | heimdal | no fix |
| Ubuntu 25.10 | heimdal | no fix |
| Ubuntu 26.04 LTS | heimdal | no fix |
| Ubuntu 26.10 | heimdal | no fix |
| Ubuntu Pro 14.04 LTS | heimdal | 1.6~git20131207+dfsg-1ubuntu1.2+esm3 |
| Ubuntu Pro 16.04 LTS | heimdal | 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 |
| openSUSE Leap 15.3 | libheimdal | 7.8.0-bp153.2.4.1 |
| openSUSE Leap 15.4 | libheimdal | 7.8.0-bp154.2.4.1 |