CVE-2019-12098
Published: 15 May 2019
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.
Notes
| Author | Note |
|---|---|
| leosilva | it fails with a FTBFS on certs tests. This issue is probably related: https://github.com/heimdal/heimdal/issues/533. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
heimdal Launchpad, Ubuntu, Debian |
bionic |
Released
(7.5.0+dfsg-1ubuntu0.1)
|
| cosmic |
Ignored
(reached end-of-life)
|
|
| disco |
Ignored
(reached end-of-life)
|
|
| eoan |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| focal |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| groovy |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| hirsute |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| impish |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| jammy |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| kinetic |
Not vulnerable
(7.5.0+dfsg-3build1)
|
|
| precise |
Ignored
(end of ESM support, was needed)
|
|
| trusty |
Released
(1.6~git20131207+dfsg-1ubuntu1.2+esm1)
|
|
| upstream |
Released
(7.6)
|
|
| xenial |
Released
(1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm1)
|
|
|
Patches: upstream: https://github.com/heimdal/heimdal/commit/2f7f3d9960aa6ea21358bdf3687cee5149aa35cf |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.4 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12098
- http://www.h5l.org/pipermail/heimdal-announce/2019-May/000009.html
- https://github.com/heimdal/heimdal/compare/3e58559...bbafe72
- https://github.com/heimdal/heimdal/releases/tag/heimdal-7.6.0
- https://ubuntu.com/security/notices/USN-5675-1
- NVD
- Launchpad
- Debian