High severity7.5NVD Advisory· Published Jul 31, 2019· Updated Jun 17, 2026
CVE-2018-16860
CVE-2018-16860
Description
A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to, excluding 4.10.3, when used in AD DC mode. A man in the middle attacker could use this flaw to intercept the request to the KDC and replace the user name (principal) in the request with any desired user name (principal) that exists in the KDC effectively obtaining a ticket for that principal.
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Affected products
7- Range: <4.8.12, <4.9.8, <4.10.3
- osv-coords5 versionspkg:rpm/opensuse/libheimdal&distro=openSUSE%20Leap%2015.0pkg:rpm/opensuse/libheimdal&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/samba&distro=openSUSE%20Tumbleweedpkg:rpm/suse/libheimdal&distro=SUSE%20Package%20Hub%2015pkg:rpm/suse/libheimdal&distro=SUSE%20Package%20Hub%2015%20SP1
< 7.7.0-lp151.3.3.1+ 4 more
- (no CPE)range: < 7.7.0-lp151.3.3.1
- (no CPE)range: < 7.7.0-lp151.3.3.1
- (no CPE)range: < 4.14.6+git.182.2205d5224e3-1.1
- (no CPE)range: < 7.7.0-bp150.2.3.1
- (no CPE)range: < 7.7.0-bp151.4.3.1
- Range: 4.8.x up to, excluding 4.8.12
Patches
Vulnerability mechanics
References
17- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- www.samba.org/samba/security/CVE-2018-16860.htmlnvdMitigationVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.htmlnvd
- seclists.org/fulldisclosure/2019/Aug/11nvd
- seclists.org/fulldisclosure/2019/Aug/13nvd
- seclists.org/fulldisclosure/2019/Aug/14nvd
- seclists.org/fulldisclosure/2019/Aug/15nvd
- seclists.org/bugtraq/2019/Aug/21nvd
- seclists.org/bugtraq/2019/Aug/22nvd
- seclists.org/bugtraq/2019/Aug/23nvd
- seclists.org/bugtraq/2019/Aug/25nvd
- security.gentoo.org/glsa/202003-52nvd
- support.apple.com/HT210346nvd
- support.apple.com/HT210348nvd
- support.apple.com/HT210351nvd
- support.apple.com/HT210353nvd
- www.synology.com/security/advisory/Synology_SA_19_23nvd
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