SUSE update for bind

1) Resource exhaustion

EUVDB-ID: #VU77612

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-2828

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can cause the amount of memory used by a named resolver to go well beyond the configured max-cache-size limit. The effectiveness of the attack depends on a number of factors (e.g. query load, query patterns), but since the default value of the max-cache-size statement is 90%, in the worst case the attacker can exhaust all available memory on the host running named, leading to a denial-of-service condition.

Mitigation

Update the affected package bind to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Software Development Kit 12: SP5

SUSE Linux Enterprise Server for SAP Applications 12: SP4 - SP5

SUSE Linux Enterprise Server 12 SP4 LTSS: 12-SP4

SUSE Linux Enterprise Server 12 SP4 ESPOS: 12-SP4

SUSE Linux Enterprise Server 12: SP4 - SP5

SUSE Linux Enterprise High Performance Computing 12: SP4 - SP5

SUSE OpenStack Cloud Crowbar: 9

SUSE OpenStack Cloud: 9

bind-devel: before 9.11.22-3.46.4

bind-doc: before 9.11.22-3.46.4

python-bind: before 9.11.22-3.46.4

libisccc161-debuginfo: before 9.11.22-3.46.4

liblwres161: before 9.11.22-3.46.4

libbind9-161-debuginfo: before 9.11.22-3.46.4

bind-utils-debuginfo: before 9.11.22-3.46.4

libbind9-161: before 9.11.22-3.46.4

libdns1110-debuginfo: before 9.11.22-3.46.4

libisc1107: before 9.11.22-3.46.4

libdns1110: before 9.11.22-3.46.4

libirs161-debuginfo: before 9.11.22-3.46.4

bind-utils: before 9.11.22-3.46.4

bind-chrootenv: before 9.11.22-3.46.4

bind: before 9.11.22-3.46.4

libisccfg163-debuginfo: before 9.11.22-3.46.4

libisc1107-debuginfo-32bit: before 9.11.22-3.46.4

bind-debugsource: before 9.11.22-3.46.4

bind-debuginfo: before 9.11.22-3.46.4

libirs161: before 9.11.22-3.46.4

libisccc161: before 9.11.22-3.46.4

libisc1107-32bit: before 9.11.22-3.46.4

libisccfg163: before 9.11.22-3.46.4

libisc1107-debuginfo: before 9.11.22-3.46.4

liblwres161-debuginfo: before 9.11.22-3.46.4

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_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:12-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12_sp4_espos:12-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud_crowbar:9:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud:9:*:*:*:*:*:*:*
• cpe:2.3:a:suse:bind-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:bind-doc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python-bind:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libisccc161-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:liblwres161:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libbind9-161-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:bind-utils-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libbind9-161:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libdns1110-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libisc1107:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libdns1110:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libirs161-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:bind-utils:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:bind-chrootenv:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:bind:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libisccfg163-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libisc1107-debuginfo-32bit:*:*:*:*:*: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:libirs161:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libisccc161:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libisc1107-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libisccfg163:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libisc1107-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:liblwres161-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20232793-1/

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.