Amazon Linux 1 Security Advisory: ALAS-2020-1458
Advisory Release Date: 2020-12-16 20:31 Pacific
Advisory Updated Date: 2023-03-22 18:52 Pacific
Severity:
Low
Issue Overview:
A flaw was found in the Dnsmasq application where a remote attacker can trigger a memory leak by sending specially crafted DHCP responses to the server. A successful attack is dependent on a specific configuration regarding the domain name set into the dnsmasq.conf file. Over time, the memory leak may cause the process to run out of memory and terminate, causing a denial of service. (CVE-2019-14834)
Affected Packages:
dnsmasq
Issue Correction:
Run yum update dnsmasq to update your system.
New Packages:
i686:
dnsmasq-debuginfo-2.76-16.16.amzn1.i686
dnsmasq-utils-2.76-16.16.amzn1.i686
dnsmasq-2.76-16.16.amzn1.i686
src:
dnsmasq-2.76-16.16.amzn1.src
x86_64:
dnsmasq-utils-2.76-16.16.amzn1.x86_64
dnsmasq-2.76-16.16.amzn1.x86_64
dnsmasq-debuginfo-2.76-16.16.amzn1.x86_64