SUSE update for openssl-1_1

Published: 2021-08-24

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-3711 CVE-2021-3712
CWE-ID	CWE-119 CWE-125
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	SUSE OpenStack Cloud Crowbar Operating systems & Components / Operating system SUSE Linux Enterprise Software Development Kit Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system SUSE OpenStack Cloud Operating systems & Components / Operating system libopenssl-1_1-devel-32bit Operating systems & Components / Operating system package or component libopenssl-1_1-devel Operating systems & Components / Operating system package or component openssl-1_1-debugsource Operating systems & Components / Operating system package or component openssl-1_1-debuginfo Operating systems & Components / Operating system package or component openssl-1_1 Operating systems & Components / Operating system package or component libopenssl1_1-debuginfo-32bit Operating systems & Components / Operating system package or component libopenssl1_1-debuginfo Operating systems & Components / Operating system package or component libopenssl1_1-32bit Operating systems & Components / Operating system package or component libopenssl1_1 Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU56063

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-3711

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in EVP_PKEY_decrypt() function within implementation of the SM2 decryption. A remote attacker can send specially crafted SM2 content for decryption to trigger a buffer overflow by 62 bytes and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package openssl-1_1 to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP4-LTSS - 12-SP5

SUSE OpenStack Cloud: 9

libopenssl-1_1-devel-32bit: before 1.1.1d-2.36.2

libopenssl-1_1-devel: before 1.1.1d-2.36.2

openssl-1_1-debugsource: before 1.1.1d-2.36.2

openssl-1_1-debuginfo: before 1.1.1d-2.36.2

openssl-1_1: before 1.1.1d-2.36.2

libopenssl1_1-debuginfo-32bit: before 1.1.1d-2.36.2

libopenssl1_1-debuginfo: before 1.1.1d-2.36.2

libopenssl1_1-32bit: before 1.1.1d-2.36.2

libopenssl1_1: before 1.1.1d-2.36.2

CPE2.3

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20212833-1/

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) Out-of-bounds read

EUVDB-ID: #VU56064

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-3712

CWE-ID: CWE-125 - Out-of-bounds read