Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU84035
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-39804
CWE-ID:
CWE-121 - Stack-based buffer overflow
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 within the xattr_decoder() function in xheader.c. A remote attacker can trick the victim to open a specially crafted tar/pax archive with an overly long xattr key, trigger a stack-based buffer overflow 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 tar to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Micro: 5.1 - 5.5
openSUSE Leap Micro: 5.3 - 5.4
Basesystem Module: 15-SP4 - 15-SP5
SUSE Linux Enterprise Micro for Rancher: 5.2 - 5.4
SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP5
SUSE Linux Enterprise Server 15: SP4 - SP5
SUSE Linux Enterprise Real Time 15: SP4 - SP5
SUSE Linux Enterprise High Performance Computing 15: SP4 - SP5
SUSE Linux Enterprise Desktop 15: SP4 - SP5
openSUSE Leap: 15.4 - 15.5
SUSE Manager Retail Branch Server: 4.3
SUSE Manager Server: 4.3
SUSE Manager Proxy: 4.3
tar-backup-scripts: before 1.34-150000.3.34.1
tar-doc: before 1.34-150000.3.34.1
tar-tests-debuginfo: before 1.34-150000.3.34.1
tar-tests: before 1.34-150000.3.34.1
tar-lang: before 1.34-150000.3.34.1
tar-debuginfo: before 1.34-150000.3.34.1
tar-rmt: before 1.34-150000.3.34.1
tar-debugsource: before 1.34-150000.3.34.1
tar: before 1.34-150000.3.34.1
tar-rmt-debuginfo: before 1.34-150000.3.34.1
CPE2.3http://www.suse.com/support/update/announcement/2024/suse-su-20240070-1/
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.