Risk | High |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2019-20044 CVE-2021-45444 |
CWE-ID | CWE-273 CWE-78 |
Exploitation vector | Network |
Public exploit | Public exploit code for vulnerability #1 is available. |
Vulnerable software Subscribe |
SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system zsh-debugsource Operating systems & Components / Operating system package or component zsh-debuginfo Operating systems & Components / Operating system package or component zsh Operating systems & Components / Operating system package or component |
Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU26210
Risk: Low
CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2019-20044
CWE-ID:
CWE-273 - Improper Check for Dropped Privileges
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to Zsh fails to overwrite the saved uid, so the original privileges, dropped by the --no-PRIVILEGED option, can be restored by
executing MODULE_PATH=/dir/with/module zmodload with a module that calls
setuid(). A local user can execute arbitrary commands on the system with elevated privileges.
Update the affected package zsh to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server for SAP: 15-SP3
SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS
SUSE Linux Enterprise Server: 15-LTSS
zsh-debugsource: before 5.6-3.11.1
zsh-debuginfo: before 5.6-3.11.1
zsh: before 5.6-3.11.1
External linkshttp://www.suse.com/support/update/announcement/2022/suse-su-20220732-1/
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.
EUVDB-ID: #VU60674
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-2021-45444
CWE-ID:
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to recursive PROMPT_SUBST expansion when processing malicious output. A remote attacker with ability to control the output can inject and execute arbitrary commands on the system with privileges on the current user.
Update the affected package zsh to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server for SAP: 15-SP3
SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS
SUSE Linux Enterprise Server: 15-LTSS
zsh-debugsource: before 5.6-3.11.1
zsh-debuginfo: before 5.6-3.11.1
zsh: before 5.6-3.11.1
External linkshttp://www.suse.com/support/update/announcement/2022/suse-su-20220732-1/
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.