SUSE update for openssl-1_0_0

Published: 2021-03-12

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-23840 CVE-2021-23841
CWE-ID	CWE-20 CWE-476
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Linux Enterprise Module for Legacy Software Operating systems & Components / Operating system SUSE Manager Proxy Operating systems & Components / Operating system SUSE Manager Retail Branch Server Operating systems & Components / Operating system SUSE Manager Server Operating systems & Components / Operating system SUSE Enterprise Storage Operating systems & Components / Operating system SUSE CaaS Platform Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system libopenssl10-debuginfo Operating systems & Components / Operating system package or component libopenssl10 Operating systems & Components / Operating system package or component openssl-1_0_0-debugsource Operating systems & Components / Operating system package or component openssl-1_0_0-debuginfo Operating systems & Components / Operating system package or component openssl-1_0_0 Operating systems & Components / Operating system package or component libopenssl1_0_0-debuginfo Operating systems & Components / Operating system package or component libopenssl1_0_0 Operating systems & Components / Operating system package or component libopenssl-1_0_0-devel Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU50745

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-23840

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input during EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate calls. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package openssl-1_0_0 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP1 - 15-SP3

SUSE Linux Enterprise Module for Legacy Software: 15-SP2 - 15-SP3

SUSE Manager Proxy: 4.0

SUSE Manager Retail Branch Server: 4.0

SUSE Manager Server: 4.0

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS

libopenssl10-debuginfo: before 1.0.2p-3.37.1

libopenssl10: before 1.0.2p-3.37.1

openssl-1_0_0-debugsource: before 1.0.2p-3.37.1

openssl-1_0_0-debuginfo: before 1.0.2p-3.37.1

openssl-1_0_0: before 1.0.2p-3.37.1

libopenssl1_0_0-debuginfo: before 1.0.2p-3.37.1

libopenssl1_0_0: before 1.0.2p-3.37.1

libopenssl-1_0_0-devel: before 1.0.2p-3.37.1

CPE2.3

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20210769-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) NULL pointer dereference

EUVDB-ID: #VU50740