CVE-2018-20103

Impact:
Important
Public Date:
2018-12-12
CWE:
CWE-400
Bugzilla:
1658876: CVE-2018-20103 haproxy: Infinite recursion via crafted packet allows stack exhaustion and denial of service

The MITRE CVE dictionary describes this issue as:

An issue was discovered in dns.c in HAProxy through 1.8.14. In the case of a compressed pointer, a crafted packet can trigger infinite recursion by making the pointer point to itself, or create a long chain of valid pointers resulting in stack exhaustion.

Find out more about CVE-2018-20103 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue did not affect the versions of haproxy as shipped with Red Hat Enterprise Linux 6 and 7.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 7.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Impact None
Availability Impact High

Affected Packages State

Platform Package State
Red Hat Software Collections for Red Hat Enterprise Linux rh-haproxy18-haproxy Affected
Red Hat OpenShift Container Platform 3.9 haproxy Affected
Red Hat OpenShift Container Platform 3.7 haproxy Affected
Red Hat OpenShift Container Platform 3.11 haproxy Affected
Red Hat OpenShift Container Platform 3.10 haproxy Affected
Red Hat Enterprise Linux 7 haproxy Not affected
Red Hat Enterprise Linux 6 haproxy Not affected

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation