SUSE update for curl
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-22876 CVE-2021-22898 |
| CWE-ID | CWE-200 CWE-457 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
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 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 libcurl4-32bit-debuginfo Operating systems & Components / Operating system package or component libcurl4-32bit Operating systems & Components / Operating system package or component libcurl4-debuginfo Operating systems & Components / Operating system package or component libcurl4 Operating systems & Components / Operating system package or component libcurl-devel Operating systems & Components / Operating system package or component curl-debugsource Operating systems & Components / Operating system package or component curl-debuginfo Operating systems & Components / Operating system package or component curl Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Information disclosure
EUVDB-ID: #VU51821
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-22876
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to libcurl does not strip off user credentials from the URL when automatically populating the Referer:
HTTP request header field in outgoing HTTP requests and therefore
risks leaking sensitive data to the server that is the target of the
second HTTP request.
Update the affected package curl to the latest version.
Vulnerable software versionsSUSE Manager Proxy: 4.0
SUSE Manager Retail Branch Server: 4.0
SUSE Manager Server: 4.0
SUSE Linux Enterprise Server for SAP: 15-SP1 - 15
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
libcurl4-32bit-debuginfo: before 7.60.0-3.42.1
libcurl4-32bit: before 7.60.0-3.42.1
libcurl4-debuginfo: before 7.60.0-3.42.1
libcurl4: before 7.60.0-3.42.1
libcurl-devel: before 7.60.0-3.42.1
curl-debugsource: before 7.60.0-3.42.1
curl-debuginfo: before 7.60.0-3.42.1
curl: before 7.60.0-3.42.1
CPE2.3- 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_server_for_sap:15-SP1:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15:*:*:*:*:*:*:*
- 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:o:suse:libcurl4-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libcurl4-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libcurl4-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libcurl4:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libcurl-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:curl-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:curl-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:curl:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20211809-1/
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 of uninitialized variable
EUVDB-ID: #VU53587
Risk: Medium
CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-22898
CWE-ID:
CWE-457 - Use of Uninitialized Variable
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to usage of uninitialized variable in code, responsible for processing TELNET requests when parsing NEW_ENV variables. A remote attacker can force the affected application to connect to a telnet server under attackers control and read up to 1800 bytes from the uninitialized memory on the libcurl client system.
Proof of concept:
curl telnet://example.com -tNEW_ENV=a,bbbbbb (256 'b's)Update the affected package curl to the latest version.
Vulnerable software versionsSUSE Manager Proxy: 4.0
SUSE Manager Retail Branch Server: 4.0
SUSE Manager Server: 4.0
SUSE Linux Enterprise Server for SAP: 15-SP1 - 15
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
libcurl4-32bit-debuginfo: before 7.60.0-3.42.1
libcurl4-32bit: before 7.60.0-3.42.1
libcurl4-debuginfo: before 7.60.0-3.42.1
libcurl4: before 7.60.0-3.42.1
libcurl-devel: before 7.60.0-3.42.1
curl-debugsource: before 7.60.0-3.42.1
curl-debuginfo: before 7.60.0-3.42.1
curl: before 7.60.0-3.42.1
CPE2.3- 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_server_for_sap:15-SP1:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15:*:*:*:*:*:*:*
- 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:o:suse:libcurl4-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libcurl4-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libcurl4-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libcurl4:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:libcurl-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:curl-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:curl-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:curl:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20211809-1/
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.
