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cnvdChina National Vulnerability DatabaseCNVD-2021-87030
HistoryNov 12, 2021 - 12:00 a.m.

Samba Input Validation Error Vulnerability (CNVD-2021-87030)

2021-11-1200:00:00
China National Vulnerability Database
www.cnvd.org.cn
12

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

Samba is the standard Windows interoperability suite for Linux and Unix. samba is vulnerable to an input validation error, which stems from a flaw found in the way samba implements DCE/RPC. If a client of the Samba server sends a very large DCE/RPC request and chooses to segment it, an attacker could exploit the flaw to bypass the signature requirement by replacing the subsequent segment with its own data.

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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