CVE-2018-5744
bind: A specially crafted packet can cause named to leak memory
Severity
ImportantRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · February 21, 2019
Updated · November 5, 2026
Description
A flaw was found in the way bind failed to free memory when processing certain messages. An attacker could use this flaw to cause a denial of service via memory exhaustion, by send specially crafted messages with Extension mechanisms for DNS (EDNS) options.
Statement
Versions of bind package shipped with Red Hat Enterprise Linux 5, 6, and 7 did not ship the vulnerable code and therefore are not affected by this flaw. For more details please refer to: https://bugzilla.redhat.com/show_bug.cgi?id=1679299#c7
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-400 · Uncontrolled Resource Consumption