Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU79803
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-39976
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in log_blackbox.c. A remote attacker can send an overly long log message tp the application, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationUpdate the affected package libqb to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server 15 SP2 Business Critical Linux: 15-SP2
SUSE Linux Enterprise Server 15 SP1 Business Critical Linux: 15-SP1
SUSE Linux Enterprise High Availability Extension 15: SP1 - SP2
SUSE Linux Enterprise Server for SAP Applications 15: SP1 - SP2
SUSE Linux Enterprise Server 15: SP1 - SP2
SUSE Linux Enterprise High Performance Computing 15: SP1 - SP2
SUSE Manager Proxy: 4.0 - 4.1
SUSE Manager Retail Branch Server: 4.0 - 4.1
SUSE Manager Server: 4.0 - 4.1
openSUSE Leap: 15.4
libqb-tests: before 1.0.3+20190326.a521604-150100.3.9.1
libqb-devel: before 1.0.3+20190326.a521604-150100.3.9.1
libqb-debugsource: before 1.0.3+20190326.a521604-150100.3.9.1
libqb-tests-debuginfo: before 1.0.3+20190326.a521604-150100.3.9.1
libqb-tools-debuginfo: before 1.0.3+20190326.a521604-150100.3.9.1
libqb-tools: before 1.0.3+20190326.a521604-150100.3.9.1
libqb20-32bit: before 1.0.3+20190326.a521604-150100.3.9.1
libqb20-32bit-debuginfo: before 1.0.3+20190326.a521604-150100.3.9.1
libqb20: before 1.0.3+20190326.a521604-150100.3.9.1
libqb20-debuginfo: before 1.0.3+20190326.a521604-150100.3.9.1
CPE2.3http://www.suse.com/support/update/announcement/2023/suse-su-20233728-1/
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.