CVE-2018-20103

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/106280 vdb entry third party advisory
https://usn.ubuntu.com/3858-1/ third party advisory vendor advisory
https://access.redhat.com/errata/RHBA-2019:0326 third party advisory vendor advisory
http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=58df5aea0a0c926b2238f65908f5e9f83d1cca25
https://access.redhat.com/errata/RHBA-2019:0327 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:1436 vendor advisory
https://lists.debian.org/debian-lts-announce/2022/05/msg00045.html mailing list

Frequently Asked Questions

What is the severity of CVE-2018-20103?
CVE-2018-20103 has been scored as a high severity vulnerability.
How to fix CVE-2018-20103?
To fix CVE-2018-20103, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-20103 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-20103 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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