Slackware Linux update for bind

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.

Vulnerable software versions

Slackware Linux: 14.0 - 14.2

CPE2.3

• cpe:2.3:o:slackware:slackware_linux:14.2:*:*:*:*:*:*:
• cpe:2.3:o:slackware:slackware_linux:14.1:*:*:*:*:*:*:
• cpe:2.3:o:slackware:slackware_linux:14.0:*:*:*:*:*:*:

External links

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2021&m=slackware-security.434807

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.