SUSE update for flatpak
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-21261 CVE-2021-21381 |
| CWE-ID | CWE-94 CWE-74 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system SUSE Enterprise Storage Operating systems & Components / Operating system SUSE CaaS Platform Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system typelib-1_0-Flatpak-1_0 Operating systems & Components / Operating system package or component libflatpak0-debuginfo Operating systems & Components / Operating system package or component libflatpak0 Operating systems & Components / Operating system package or component flatpak-zsh-completion Operating systems & Components / Operating system package or component flatpak-devel Operating systems & Components / Operating system package or component flatpak-debugsource Operating systems & Components / Operating system package or component flatpak-debuginfo Operating systems & Components / Operating system package or component flatpak Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Code Injection
EUVDB-ID: #VU49587
Risk: Low
CVSSv4.0: 7.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear]
CVE-ID: CVE-2021-21261
CWE-ID:
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Exploit availability: No
DescriptionThe vulnerability allows a local application to elevate privileges on the system.
The vulnerability exists due to improper input validation when processing environment variables, passed from a sandboxed process to a non-sandboxed process on the host system, and in particular to the `flatpak run` command that is used to launch the new sandbox instance. A malicious or compromised Flatpak app can set environment variables that are trusted by the `flatpak run` command, and use them to execute arbitrary code that is not in a sandbox.
MitigationUpdate the affected package flatpak to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server for SAP: 15-SP1
SUSE Linux Enterprise High Performance Computing: 15-SP1-LTSS - 15-SP1-ESPOS
SUSE Enterprise Storage: 6
SUSE CaaS Platform: 4.0
SUSE Linux Enterprise Server: 15-SP1-BCL - 15-SP1-LTSS
typelib-1_0-Flatpak-1_0: before 1.2.3-150100.4.5.2
libflatpak0-debuginfo: before 1.2.3-150100.4.5.2
libflatpak0: before 1.2.3-150100.4.5.2
flatpak-zsh-completion: before 1.2.3-150100.4.5.2
flatpak-devel: before 1.2.3-150100.4.5.2
flatpak-debugsource: before 1.2.3-150100.4.5.2
flatpak-debuginfo: before 1.2.3-150100.4.5.2
flatpak: before 1.2.3-150100.4.5.2
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15-SP1:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP1-LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP1-ESPOS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_enterprise_storage:6:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_caas_platform:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP1-BCL:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP1-LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:typelib-1_0-flatpak-1_0:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libflatpak0-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libflatpak0:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:flatpak-zsh-completion:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:flatpak-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:flatpak-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:flatpak-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:flatpak:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2022/suse-su-20222990-1/
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.
2) Improper Neutralization of Special Elements in Output Used by a Downstream Component
EUVDB-ID: #VU51443
Risk: Medium
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-21381
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to improper input validation within the "file forwarding" feature. By putting the special tokens `@@` and/or `@@u` in the Exec field of a Flatpak app's .desktop file, a malicious app publisher can trick flatpak into behaving as though the user had chosen to open a target file with their Flatpak app, which automatically makes that file available to the Flatpak app.
MitigationUpdate the affected package flatpak to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server for SAP: 15-SP1
SUSE Linux Enterprise High Performance Computing: 15-SP1-LTSS - 15-SP1-ESPOS
SUSE Enterprise Storage: 6
SUSE CaaS Platform: 4.0
SUSE Linux Enterprise Server: 15-SP1-BCL - 15-SP1-LTSS
typelib-1_0-Flatpak-1_0: before 1.2.3-150100.4.5.2
libflatpak0-debuginfo: before 1.2.3-150100.4.5.2
libflatpak0: before 1.2.3-150100.4.5.2
flatpak-zsh-completion: before 1.2.3-150100.4.5.2
flatpak-devel: before 1.2.3-150100.4.5.2
flatpak-debugsource: before 1.2.3-150100.4.5.2
flatpak-debuginfo: before 1.2.3-150100.4.5.2
flatpak: before 1.2.3-150100.4.5.2
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15-SP1:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP1-LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP1-ESPOS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_enterprise_storage:6:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_caas_platform:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP1-BCL:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP1-LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:typelib-1_0-flatpak-1_0:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libflatpak0-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libflatpak0:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:flatpak-zsh-completion:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:flatpak-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:flatpak-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:flatpak-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:flatpak:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2022/suse-su-20222990-1/
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.
