Red Hat update for ISC BIND



Published: 2018-08-28
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-5740
CWE-ID CWE-617
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Red Hat Enterprise Linux Server
Operating systems & Components / Operating system

Red Hat Enterprise Linux for IBM z Systems
Operating systems & Components / Operating system

Red Hat Enterprise Linux for Scientific Computing
Operating systems & Components / Operating system

Red Hat Enterprise Linux EUS Compute Node
Operating systems & Components / Operating system

Red Hat Enterprise Linux for ARM
Operating systems & Components / Operating system

Red Hat Enterprise Linux for Power
Operating systems & Components / Operating system

Red Hat Enterprise Linux Desktop
Operating systems & Components / Operating system

Red Hat Enterprise Linux Workstation
Operating systems & Components / Operating system

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Assertion failure

EUVDB-ID: #VU14291

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2018-5740

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

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

The vulnerability exists due to INSIST assertion failure in name.c when processing recursive queries. A remote attacker can trigger denial of service conditions if the affected server is configured with enabled "deny-answer-aliases" feature.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server: 7 - 7.5

Red Hat Enterprise Linux for IBM z Systems: 7 - 7.5

Red Hat Enterprise Linux for Scientific Computing: 7

Red Hat Enterprise Linux EUS Compute Node: 7.5

Red Hat Enterprise Linux for ARM: 6.4

Red Hat Enterprise Linux for Power: 7 - 9

Red Hat Enterprise Linux Desktop: 7

Red Hat Enterprise Linux Workstation: 7


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2018:2570

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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