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freebsdFreeBSD793A0072-7822-11E9-81E2-005056A311D1
HistoryMay 14, 2019 - 12:00 a.m.

samba -- multiple vulnerabilities

2019-05-1400:00:00
vuxml.freebsd.org
25

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

6 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:S/C:P/I:P/A:P

0.003 Low

EPSS

Percentile

68.3%

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.

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

6 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:S/C:P/I:P/A:P

0.003 Low

EPSS

Percentile

68.3%