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ibmIBM4B213706D3BFFD0A2D597AF8439B0BDDCAF45DF1ADAEDEE983A640BA2BAD5851
HistoryDec 07, 2023 - 10:45 p.m.

Security Bulletin: IBM Flex System switch firmware products are affected by a vulnerability in libcurl (CVE-2019-5436)

2023-12-0722:45:08
www.ibm.com
22
ibm flex system
switch firmware
libcurl vulnerability
heap-based buffer overflow
cve-2019-5436
fix central

4.6 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.07 Low

EPSS

Percentile

94.0%

JSON

Summary

IBM Flex System switch firmware products have addressed the following vulnerability in libcurl.

Vulnerability Details

CVEID:CVE-2019-5436
**DESCRIPTION:**cURL libcurl is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the tftp_receive_packet() function. By sending overly long data, a remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base score: 6.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/161431 for the current score.
CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

Affected Product(s) Version(s)
IBM Flex System CN4093 10Gb Converged Scalable Switch 7.8

Remediation/Fixes

Firmware fix versions are available on Fix Central: <http://www.ibm.com/support/fixcentral/&gt;

Product(s) Version(s)

IBM Flex System CN4093 10Gb Converged Scalable Switch firmware

(ibm_fw_scsw_cn4093-7.8.28.0_anyos_noarch)

| 7.8.28.0

Workarounds and Mitigations

None

Affected configurations

Vulners
Node
ibmfabric_cn4093_10gb_firmwareMatch7.8

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ics
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Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1
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4.6 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.07 Low

EPSS

Percentile

94.0%

JSON
Related for 4B213706D3BFFD0A2D597AF8439B0BDDCAF45DF1ADAEDEE983A640BA2BAD5851
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