Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU69301
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-31256
CWE-ID:
CWE-61 - UNIX Symbolic Link (Symlink) Following
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a symlink following issue in a script called by the sendmail systemd service. A local user can create a specially crafted symbolic link to a critical file on the system and escalate privileges from mail to root.
Update the affected package sendmail to the latest version.
Vulnerable software versionsSUSE Enterprise Storage: 6 - 7.1
SUSE Manager Retail Branch Server: 4.1 - 4.3
SUSE Linux Enterprise Storage: 7.1
SUSE Linux Enterprise Module for Packagehub Subpackages: 15-SP3 - 15-SP4
SUSE Manager Server: 4.1 - 4.3
SUSE Manager Proxy: 4.1 - 4.3
SUSE Linux Enterprise Server for SAP: 15-SP1 - 15-SP2
SUSE Linux Enterprise Server: 15-LTSS - 15-SP4
SUSE Linux Enterprise Module for Basesystem: 15-SP3 - 15-SP4
SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-SP4
SUSE Linux Enterprise Desktop: 15-SP3 - 15-SP4
SUSE CaaS Platform: 4.0
openSUSE Leap: 15.3 - 15.4
SUSE Linux Enterprise Server for SAP Applications: 15-SP3 - 15-SP4
sendmail-starttls: before 8.15.2-150000.8.9.1
libmilter-doc: before 8.15.2-150000.8.9.1
sendmail-devel: before 8.15.2-150000.8.9.1
sendmail-debugsource: before 8.15.2-150000.8.9.1
sendmail-debuginfo: before 8.15.2-150000.8.9.1
sendmail: before 8.15.2-150000.8.9.1
rmail-debuginfo: before 8.15.2-150000.8.9.1
rmail: before 8.15.2-150000.8.9.1
libmilter1_0-debuginfo: before 8.15.2-150000.8.9.1
libmilter1_0: before 8.15.2-150000.8.9.1
External linkshttp://www.suse.com/support/update/announcement/2022/suse-su-20223899-1/
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.