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huaweiHuawei TechnologiesHUAWEI-SA-20191225-01-KERNEL
HistoryDec 26, 2019 - 12:00 a.m.

Security Advisory - Integer Overflow Vulnerability in the Linux Kernel (SACK Panic)

2019-12-2600:00:00
Huawei Technologies
www.huawei.com
195

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.972 High

EPSS

Percentile

99.8%

An integer overflow vulnerability was found in the way the Linux kernel’s networking subsystem processed TCP Selective Acknowledgment (SACK) segments. A remote attacker could use this to cause a denial of service. (Vulnerability ID: HWPSIRT-2019-06130)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2019-11477.

Huawei has released software updates to fix this vulnerability. This advisory is available at the following link:

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191225-01-kernel-en

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.972 High

EPSS

Percentile

99.8%