SUSE update for bind
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-25220 |
| CWE-ID | CWE-350 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
SUSE OpenStack Cloud Crowbar Operating systems & Components / Operating system SUSE Linux Enterprise Software Development Kit Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system SUSE OpenStack Cloud Operating systems & Components / Operating system bind-devel Operating systems & Components / Operating system package or component python-bind Operating systems & Components / Operating system package or component bind-doc Operating systems & Components / Operating system package or component liblwres161-debuginfo Operating systems & Components / Operating system package or component liblwres161 Operating systems & Components / Operating system package or component libisccfg163-debuginfo Operating systems & Components / Operating system package or component libisccfg163 Operating systems & Components / Operating system package or component libisccc161-debuginfo Operating systems & Components / Operating system package or component libisccc161 Operating systems & Components / Operating system package or component libisc1107-debuginfo Operating systems & Components / Operating system package or component libisc1107-debuginfo-32bit Operating systems & Components / Operating system package or component libisc1107 Operating systems & Components / Operating system package or component libisc1107-32bit Operating systems & Components / Operating system package or component libirs161-debuginfo Operating systems & Components / Operating system package or component libirs161 Operating systems & Components / Operating system package or component libdns1110-debuginfo Operating systems & Components / Operating system package or component libdns1110 Operating systems & Components / Operating system package or component libbind9-161-debuginfo Operating systems & Components / Operating system package or component libbind9-161 Operating systems & Components / Operating system package or component bind-utils-debuginfo Operating systems & Components / Operating system package or component bind-utils Operating systems & Components / Operating system package or component bind-debugsource Operating systems & Components / Operating system package or component bind-debuginfo Operating systems & Components / Operating system package or component bind-chrootenv Operating systems & Components / Operating system package or component bind Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Reliance on Reverse DNS Resolution for a Security-Critical Action
EUVDB-ID: #VU61422
Risk: Medium
CVSSv4.0: 2.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-25220
CWE-ID:
CWE-350 - Reliance on Reverse DNS Resolution for a Security-Critical Action
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to poison DNS cache.
The vulnerability exists due to an error in DNS forwarder implementation. When using forwarders, bogus NS records supplied by, or via, those forwarders may be cached and used by named if it needs to recurse for any reason, causing it to obtain and pass on potentially incorrect answers. The cache could become poisoned with incorrect records leading to
queries being made to the wrong servers, which might also result in
false information being returned to clients.
Update the affected package bind to the latest version.
Vulnerable software versionsSUSE OpenStack Cloud Crowbar: 9
SUSE Linux Enterprise Software Development Kit: 12-SP5
SUSE Linux Enterprise Server for SAP: 12-SP4
SUSE Linux Enterprise Server for SAP Applications: 12-SP5
SUSE Linux Enterprise Server: 12-SP4-LTSS - 12-SP5
SUSE OpenStack Cloud: 9
bind-devel: before 9.11.22-3.40.1
python-bind: before 9.11.22-3.40.1
bind-doc: before 9.11.22-3.40.1
liblwres161-debuginfo: before 9.11.22-3.40.1
liblwres161: before 9.11.22-3.40.1
libisccfg163-debuginfo: before 9.11.22-3.40.1
libisccfg163: before 9.11.22-3.40.1
libisccc161-debuginfo: before 9.11.22-3.40.1
libisccc161: before 9.11.22-3.40.1
libisc1107-debuginfo: before 9.11.22-3.40.1
libisc1107-debuginfo-32bit: before 9.11.22-3.40.1
libisc1107: before 9.11.22-3.40.1
libisc1107-32bit: before 9.11.22-3.40.1
libirs161-debuginfo: before 9.11.22-3.40.1
libirs161: before 9.11.22-3.40.1
libdns1110-debuginfo: before 9.11.22-3.40.1
libdns1110: before 9.11.22-3.40.1
libbind9-161-debuginfo: before 9.11.22-3.40.1
libbind9-161: before 9.11.22-3.40.1
bind-utils-debuginfo: before 9.11.22-3.40.1
bind-utils: before 9.11.22-3.40.1
bind-debugsource: before 9.11.22-3.40.1
bind-debuginfo: before 9.11.22-3.40.1
bind-chrootenv: before 9.11.22-3.40.1
bind: before 9.11.22-3.40.1
CPE2.3- cpe:2.3:o:suse:suse_openstack_cloud_crowbar:9:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit:12-SP5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:12-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:12-SP5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP4-LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_openstack_cloud:9:*:*:*:*:*:*:*
- cpe:2.3:a:suse:bind-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:python-bind:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind-doc:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:liblwres161-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:liblwres161:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisccfg163-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisccfg163:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisccc161-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisccc161:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisc1107-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisc1107-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisc1107:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libisc1107-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libirs161-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libirs161:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libdns1110-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libdns1110:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libbind9-161-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libbind9-161:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind-utils-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind-utils:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind-chrootenv:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:bind:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2022/suse-su-20220908-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
