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HistoryJun 30, 2022 - 3:51 a.m.

Security Bulletin: Vulnerabilities in Samba, OpenSSL, Python, and XStream affect IBM Spectrum Protect Plus (CVE-2021-20254, CVE-2021-3712, CVE-2021-43859, CVE-2022-0778, CVE-2020-25717, CVE-2021-23192, CVE-2021-3733)

2022-06-3003:51:06
www.ibm.com
14

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

8.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

NONE

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

0.013 Low

EPSS

Percentile

85.8%

Summary

Vulnerabilities in Samba, OpenSSL, Python, and XStream may affect IBM Spectrum Protect Plus. These vulnerabilities include bypassing security restrictions, obtaining sensitive information, denial of service, and elevation of privileges.

Vulnerability Details

CVEID:CVE-2021-20254
**DESCRIPTION:**Samba could allow a remote authenticated attacker to bypass security restrictions, caused by a coding error when converting SIDs to gids. By sending a specially-crafted request, an attacker could exploit this vulnerability to cause incorrect group entries in the Samba file server process token, and allows unauthorized access to files
CVSS Base score: 6.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/201081 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N)

CVEID:CVE-2021-3712
**DESCRIPTION:**OpenSSL could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read when processing ASN.1 strings. By sending specially crafted data, an attacker could exploit this vulnerability to read contents of memory on the system or perform a denial of service attack.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/208073 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)

CVEID:CVE-2021-43859
**DESCRIPTION:**XStream is vulnerable to a denial of service, caused by improper input validation. By injecting highly recursive collections or maps, a remote attacker could exploit this vulnerability to allocate 100% CPU time on the system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/219177 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2022-0778
**DESCRIPTION:**OpenSSL is vulnerable to a denial of service, caused by a flaw in the BN_mod_sqrt() function when parsing certificates. By using a specially-crafted certificate with invalid explicit curve parameters, a remote attacker could exploit this vulnerability to cause an infinite loop, and results in a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/221911 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2020-25717
**DESCRIPTION:**Samba could allow a remote authenticated attacker to gain elevated privileges on the system, caused by a flaw in mapping domain users to local users. By sending a specially-crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges as root on domain members.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215741 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N)

CVEID:CVE-2021-23192
**DESCRIPTION:**Samba could allow a remote attacker to bypass security restrictions, caused by a flaw in the implementation of DCE/RPC. By sending a specially-crafted DCE/RPC request, an attacker could exploit this vulnerability to replace later fragments with their own data, and bypass the signature requirements.
CVSS Base score: 4.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/213210 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID:CVE-2021-3733
**DESCRIPTION:**Python is vulnerable to a denial of service, caused by a regular expression denial of service (ReDoS) flaw in the AbstractBasicAuthHandler class in urllib. By persuading a victim to visit a specially-crafted web site, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/213034 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
IBM Spectrum Protect Plus 10.1.0-10.1.10.2

Remediation/Fixes

**BM Spectrum Protect
Plus **Affected Versions|**Fixing
**Level|Platform|**Link to Fix and Instructions
**
—|—|—|—
10.1.0-10.1.10.2| 10.1.11| Linux| <https://www.ibm.com/support/pages/node/6579841&gt;

Workarounds and Mitigations

None

CPENameOperatorVersion
ibm spectrum protect pluseq10.1

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

8.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

NONE

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

0.013 Low

EPSS

Percentile

85.8%