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FreeBSD: VID-793A0072-7822-11E9-81E2-005056A311D1 (CVE-2018-16860): samba -- multiple vulnerabilities

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FreeBSD: VID-793A0072-7822-11E9-81E2-005056A311D1 (CVE-2018-16860): samba -- multiple vulnerabilities

Severity
6
CVSS
(AV:N/AC:M/Au:S/C:P/I:P/A:P)
Published
05/14/2019
Created
05/22/2019
Added
05/18/2019
Modified
08/13/2019

Description

Details for this vulnerability have not been published by NIST at this point. Descriptions from software vendor advisories for this issue are provided below.

From VID-793A0072-7822-11E9-81E2-005056A311D1:

The samba project reports:

The checksum validation in the S4U2Self handler in the embedded Heimdal KDC

did not first confirm that the checksum was keyed, allowing replacement of the

requested target (client) principal

Authenticated users with write permission can trigger a symlink traversal to write

or detect files outside the Samba share.

Solution(s)

  • freebsd-upgrade-package-samba410
  • freebsd-upgrade-package-samba46
  • freebsd-upgrade-package-samba47
  • freebsd-upgrade-package-samba48
  • freebsd-upgrade-package-samba49

References

  • CVE-2018-16860
  • USN-3976-1
  • USN-3976-2

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