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cnvdChina National Vulnerability DatabaseCNVD-2021-54002
HistoryJun 11, 2021 - 12:00 a.m.

klibc input validation error vulnerability

2021-06-1100:00:00
China National Vulnerability Database
www.cnvd.org.cn
5

9.8 High

CVSS3

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

7.5 High

CVSS2

Access Vector

NETWORK

Access 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

klibc is an application program. Provides the ability to work from kernel space as early as possible. klibc versions prior to 2.0.9 are vulnerable to an input validation error, which stems from a multiplication in the calloc() function that could lead to an integer overflow and subsequent heap buffer overflow. No detailed vulnerability details are currently available.

CPENameOperatorVersion
klibc klibclt2.0.9

9.8 High

CVSS3

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

7.5 High

CVSS2

Access Vector

NETWORK

Access 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