SUSE update for bind

Published: 2021-11-11

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2021-25219
CWE-ID	CWE-400
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Software Development Kit Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system python-bind Operating systems & Components / Operating system package or component bind-doc Operating systems & Components / Operating system package or component libisc1107-debuginfo-32bit Operating systems & Components / Operating system package or component libisc1107-32bit 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 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-chrootenv Operating systems & Components / Operating system package or component bind Operating systems & Components / Operating system package or component bind-devel 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
Vendor	SUSE

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU57752

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-25219

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 BIND does not properly control consumption of internal resources when processing lame cache. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

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: 12-SP5

python-bind: before 9.11.22-3.37.1

bind-doc: before 9.11.22-3.37.1

libisc1107-debuginfo-32bit: before 9.11.22-3.37.1

libisc1107-32bit: before 9.11.22-3.37.1

liblwres161-debuginfo: before 9.11.22-3.37.1

liblwres161: before 9.11.22-3.37.1

libisccfg163-debuginfo: before 9.11.22-3.37.1

libisccfg163: before 9.11.22-3.37.1

libisccc161-debuginfo: before 9.11.22-3.37.1

libisccc161: before 9.11.22-3.37.1

libisc1107-debuginfo: before 9.11.22-3.37.1

libisc1107: before 9.11.22-3.37.1

libirs161-debuginfo: before 9.11.22-3.37.1

libirs161: before 9.11.22-3.37.1

libdns1110-debuginfo: before 9.11.22-3.37.1

libdns1110: before 9.11.22-3.37.1

libbind9-161-debuginfo: before 9.11.22-3.37.1

libbind9-161: before 9.11.22-3.37.1

bind-utils-debuginfo: before 9.11.22-3.37.1

bind-utils: before 9.11.22-3.37.1

bind-chrootenv: before 9.11.22-3.37.1

bind: before 9.11.22-3.37.1

bind-devel: before 9.11.22-3.37.1

bind-debugsource: before 9.11.22-3.37.1

bind-debuginfo: before 9.11.22-3.37.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213657-1/

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.