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huaweiHuawei TechnologiesHUAWEI-SA-20181212-01-CACHE
HistoryDec 12, 2018 - 12:00 a.m.

Security Advisory - Cache Timing Vulnerability in OpenSSL RSA Key Generation

2018-12-1200:00:00
Huawei Technologies
www.huawei.com
41

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.01 Low

EPSS

Percentile

83.6%

The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack (CVE-2018-0737). An attacker could exploit this vulnerability to recover the private key. (Vulnerability ID: HWPSIRT-2018-06015)

Huawei has released software updates to fix this vulnerability. This advisory is available at the following link: https://www.huawei.com/cn/psirt/security-advisories/huawei-sa-20181212-01-cache-en.

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.01 Low

EPSS

Percentile

83.6%