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freebsdFreeBSD0F798BD6-8325-11EA-9A78-08002728F74C
HistoryOct 08, 2019 - 12:00 a.m.

libntlm -- buffer overflow vulnerability

2019-10-0800:00:00
vuxml.freebsd.org
10

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.006

Percentile

79.1%

NVD reports:

Libntlm through 1.5 relies on a fixed buffer size for
tSmbNtlmAuthRequest, tSmbNtlmAuthChallenge, and tSmbNtlmAuthResponse
read and write operations, as demonstrated by a stack-based buffer
over-read in buildSmbNtlmAuthRequest in smbutil.c for a crafted NTLM
request.

OSVersionArchitecturePackageVersionFilename
FreeBSDanynoarchlibntlm< 1.6UNKNOWN

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.006

Percentile

79.1%