SUSE update for gnutls
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-20231 CVE-2021-20232 |
| CWE-ID | CWE-416 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Manager Proxy Operating systems & Components / Operating system SUSE Manager Retail Branch Server Operating systems & Components / Operating system SUSE Manager Server 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 libgnutls30-hmac-32bit Operating systems & Components / Operating system package or component libgnutls30-32bit-debuginfo Operating systems & Components / Operating system package or component libgnutls30-32bit Operating systems & Components / Operating system package or component libgnutlsxx28-debuginfo Operating systems & Components / Operating system package or component libgnutlsxx28 Operating systems & Components / Operating system package or component libgnutlsxx-devel Operating systems & Components / Operating system package or component libgnutls30-hmac Operating systems & Components / Operating system package or component libgnutls30-debuginfo Operating systems & Components / Operating system package or component libgnutls30 Operating systems & Components / Operating system package or component libgnutls-devel Operating systems & Components / Operating system package or component gnutls-debugsource Operating systems & Components / Operating system package or component gnutls-debuginfo Operating systems & Components / Operating system package or component gnutls Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU51441
Risk: Low
CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-20231
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in client sending key_share extension. A remote attacker can trick the victim to connect to a malicious server using a large Client Hello message over TLS 1.3, trigger a use-after-free error and crash the application or execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationUpdate the affected package gnutls to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server for SAP: 15-SP1 - 15-SP3
SUSE Manager Proxy: 4.0
SUSE Manager Retail Branch Server: 4.0
SUSE Manager Server: 4.0
SUSE Linux Enterprise High Performance Computing: 15-LTSS - 15-SP1-ESPOS
SUSE Enterprise Storage: 6
SUSE CaaS Platform: 4.0
SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS
libgnutls30-hmac-32bit: before 3.6.7-6.40.2
libgnutls30-32bit-debuginfo: before 3.6.7-6.40.2
libgnutls30-32bit: before 3.6.7-6.40.2
libgnutlsxx28-debuginfo: before 3.6.7-6.40.2
libgnutlsxx28: before 3.6.7-6.40.2
libgnutlsxx-devel: before 3.6.7-6.40.2
libgnutls30-hmac: before 3.6.7-6.40.2
libgnutls30-debuginfo: before 3.6.7-6.40.2
libgnutls30: before 3.6.7-6.40.2
libgnutls-devel: before 3.6.7-6.40.2
gnutls-debugsource: before 3.6.7-6.40.2
gnutls-debuginfo: before 3.6.7-6.40.2
gnutls: before 3.6.7-6.40.2
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15-SP1:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_proxy:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_retail_branch_server:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_server:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-ESPOS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP1-LTSS:*:*:*:*:*:*:*
- 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-LTSS:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libgnutls30-hmac-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutls30-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutls30-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutlsxx28-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutlsxx28:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutlsxx-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutls30-hmac:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutls30-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutls30:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutls-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:gnutls-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:gnutls-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:gnutls:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20210934-1/
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.
2) Use-after-free
EUVDB-ID: #VU51442
Risk: Low
CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-20232
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The
vulnerability exists due to a use-after-free error in client_send_params in lib/ext/pre_shared_key.c. A remote attacker can trick the victim to connect
to a malicious server using a large Client Hello message over TLS 1.3,
trigger a use-after-free error and crash the application or execute
arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationUpdate the affected package gnutls to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server for SAP: 15-SP1 - 15-SP3
SUSE Manager Proxy: 4.0
SUSE Manager Retail Branch Server: 4.0
SUSE Manager Server: 4.0
SUSE Linux Enterprise High Performance Computing: 15-LTSS - 15-SP1-ESPOS
SUSE Enterprise Storage: 6
SUSE CaaS Platform: 4.0
SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS
libgnutls30-hmac-32bit: before 3.6.7-6.40.2
libgnutls30-32bit-debuginfo: before 3.6.7-6.40.2
libgnutls30-32bit: before 3.6.7-6.40.2
libgnutlsxx28-debuginfo: before 3.6.7-6.40.2
libgnutlsxx28: before 3.6.7-6.40.2
libgnutlsxx-devel: before 3.6.7-6.40.2
libgnutls30-hmac: before 3.6.7-6.40.2
libgnutls30-debuginfo: before 3.6.7-6.40.2
libgnutls30: before 3.6.7-6.40.2
libgnutls-devel: before 3.6.7-6.40.2
gnutls-debugsource: before 3.6.7-6.40.2
gnutls-debuginfo: before 3.6.7-6.40.2
gnutls: before 3.6.7-6.40.2
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15-SP1:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_proxy:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_retail_branch_server:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_server:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-ESPOS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP1-LTSS:*:*:*:*:*:*:*
- 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-LTSS:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libgnutls30-hmac-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutls30-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutls30-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutlsxx28-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutlsxx28:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutlsxx-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutls30-hmac:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutls30-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutls30:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libgnutls-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:gnutls-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:gnutls-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:gnutls:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20210934-1/
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.
