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ibmIBMA682F39065541E5C1712239B2761462972169D4C104E7393AB2199A0478F5C1A
HistoryDec 07, 2021 - 2:16 p.m.

Security Bulletin: This Power System update is being released to address CVE 2020-25705

2021-12-0714:16:38
www.ibm.com
11

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

66.3%

JSON

Summary

POWER9: In response to security issues with BMC’s UDP network service, a new Power System firmware update is being released to address Common Vulnerabilities and Exposures issue number CVE 2020-25705.

Vulnerability Details

CVEID:CVE-2020-25705
**DESCRIPTION:**Linux Kernel could allow a remote attacker to bypass security restrictions, caused by a flaw in the way reply ICMP packets are limited. By sending a specially-crafted request, an attacker could exploit this vulnerability to bypass source port UDP randomization to scan open UDP ports.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/191785 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

Affected Products and Versions

Affected Product(s) Version(s)
8335-GTH, 8335-GTX OP940
7063-CR2 OP940

Remediation/Fixes

Customers with the products below running OP940, install OP940.30:

  1. IBM Power System AC922 (8335-GTH, 8335-GTX)
  2. IBM Hardware Management Console (HMC) System Firmware (7063-CR2)

Workarounds and Mitigations

None

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7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

66.3%

JSON
Related for A682F39065541E5C1712239B2761462972169D4C104E7393AB2199A0478F5C1A
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