SUSE update for sudo

1) Out-of-bounds write

EUVDB-ID: #VU68973

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-43995

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary condition within plugins/sudoers/auth/passwd.c when Sudo is configured to use the crypt() password backend (e.g. when passwd authentication is enabled). A local user with access to Sudo  can enter a password of 8 characters or fewer to trigger a heap-based buffer over-read and gain access to sensitive information.

Mitigation

Update the affected package sudo to the latest version.

Vulnerable software versions

openSUSE Leap Micro: 5.2

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.2

SUSE Linux Enterprise Micro: 5.1 - 5.2

SUSE Linux Enterprise Desktop: 15-SP3

openSUSE Leap: 15.3

SUSE Manager Server: 4.2

SUSE Manager Proxy: 4.2

SUSE Linux Enterprise Server for SAP Applications: 15-SP3

SUSE Linux Enterprise Server: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-SP3

SUSE Linux Enterprise Module for Basesystem: 15-SP3

sudo-test: before 1.9.5p2-150300.3.13.1

sudo-plugin-python-debuginfo: before 1.9.5p2-150300.3.13.1

sudo-plugin-python: before 1.9.5p2-150300.3.13.1

sudo-devel: before 1.9.5p2-150300.3.13.1

sudo-debugsource: before 1.9.5p2-150300.3.13.1

sudo-debuginfo: before 1.9.5p2-150300.3.13.1

sudo: before 1.9.5p2-150300.3.13.1

CPE2.3

• cpe:2.3:o:suse:opensuse_leap_micro:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_enterprise_storage:7.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:sudo-test:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:sudo-plugin-python-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:sudo-plugin-python:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:sudo-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:sudo-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:sudo-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:sudo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20224077-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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