[ASA-201811-21] powerdns-recursor: denial of service
rgacogne at archlinux.org
Wed Nov 28 12:36:04 UTC 2018
Arch Linux Security Advisory ASA-201811-21
Date : 2018-11-28
CVE-ID : CVE-2018-16855
Package : powerdns-recursor
Type : denial of service
Remote : Yes
Link : https://security.archlinux.org/AVG-821
The package powerdns-recursor before version 4.1.8-1 is vulnerable to
denial of service.
Upgrade to 4.1.8-1.
# pacman -Syu "powerdns-recursor>=4.1.8-1"
The problem has been fixed upstream in version 4.1.8.
An issue has been found in PowerDNS Recursor versions from 4.1.0 up to
and including 4.1.7, where a remote attacker sending a DNS query can
trigger an out-of-bounds memory read while computing the hash of the
query for a packet cache lookup, possibly leading to a crash.
A remote attacker can cause a denial of service via a crafted query.
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