SUSE update for util-linux

1) Privilege escalation

EUVDB-ID: #VU10957

Risk: Low

CVSSv4.0: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-7738

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to insufficient validation of shell commands that are used in the name of a mountpoint. A local attacker can embed crafted shell commands in the name of a mountpoint. If another user on the system executes the umount command along with a tab character for autocomplete, the attacker can gain elevated privileges.

Mitigation

Update the affected package util-linux to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 15: SP1 - SP2

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15: SP1 - SP2

SUSE Linux Enterprise Server 15 SP1 LTSS: 15-SP1

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise High Performance Computing 15: SP1 - SP2

SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS: 15-SP1

SUSE CaaS Platform: 4.0

libmount1-32bit: before 2.33.2-150100.4.40.1

libblkid1-32bit: before 2.33.2-150100.4.40.1

libblkid1-32bit-debuginfo: before 2.33.2-150100.4.40.1

libuuid1-32bit: before 2.33.2-150100.4.40.1

libuuid1-32bit-debuginfo: before 2.33.2-150100.4.40.1

libmount1-32bit-debuginfo: before 2.33.2-150100.4.40.1

util-linux-lang: before 2.33.2-150100.4.40.1

libmount-devel: before 2.33.2-150100.4.40.1

util-linux-systemd-debuginfo: before 2.33.2-150100.4.40.1

libblkid-devel: before 2.33.2-150100.4.40.1

libmount1: before 2.33.2-150100.4.40.1

libblkid1-debuginfo: before 2.33.2-150100.4.40.1

libsmartcols1-debuginfo: before 2.33.2-150100.4.40.1

util-linux-debuginfo: before 2.33.2-150100.4.40.1

libfdisk1: before 2.33.2-150100.4.40.1

libuuid1-debuginfo: before 2.33.2-150100.4.40.1

util-linux: before 2.33.2-150100.4.40.1

libsmartcols1: before 2.33.2-150100.4.40.1

uuidd-debuginfo: before 2.33.2-150100.4.40.1

uuidd: before 2.33.2-150100.4.40.1

libmount1-debuginfo: before 2.33.2-150100.4.40.1

libuuid1: before 2.33.2-150100.4.40.1

libblkid1: before 2.33.2-150100.4.40.1

util-linux-systemd-debugsource: before 2.33.2-150100.4.40.1

libfdisk1-debuginfo: before 2.33.2-150100.4.40.1

libblkid-devel-static: before 2.33.2-150100.4.40.1

libsmartcols-devel: before 2.33.2-150100.4.40.1

util-linux-debugsource: before 2.33.2-150100.4.40.1

util-linux-systemd: before 2.33.2-150100.4.40.1

libfdisk-devel: before 2.33.2-150100.4.40.1

libuuid-devel: before 2.33.2-150100.4.40.1

libuuid-devel-static: before 2.33.2-150100.4.40.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp2_ltss:15-SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp1_ltss:15-SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15_sp2_ltss:15-SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15_sp1_ltss:15-SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_caas_platform:4.0:*:*:*:*:*:*:*
• cpe:2.3:a:suse:libmount1-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libblkid1-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libblkid1-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libuuid1-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libuuid1-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libmount1-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:util-linux-lang:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libmount-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:util-linux-systemd-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libblkid-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libmount1:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libblkid1-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsmartcols1-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:util-linux-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libfdisk1:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libuuid1-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:util-linux:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsmartcols1:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:uuidd-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:uuidd:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libmount1-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libuuid1:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libblkid1:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:util-linux-systemd-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libfdisk1-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libblkid-devel-static:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsmartcols-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:util-linux-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:util-linux-systemd:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libfdisk-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libuuid-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libuuid-devel-static:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20234512-1/

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. However, proof of concept for this vulnerability is available.