Arch Linux update for powerdns-recursor



Published: 2018-11-28
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-16855
CWE-ID CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Arch Linux
Operating systems & Components / Operating system

Vendor Arch Linux

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU16147

Risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-16855

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to out-of-bounds memory read while computing the hash of the query for a packet cache lookup. A remote attacker can send a specially crafted DNS query and cause the service to crash.

Mitigation

Update the affected package powerdns-recursor to version 4.1.8-1.

Vulnerable software versions

Arch Linux: All versions

External links

http://security.archlinux.org/advisory/ASA-201811-21


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.



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