High severity · published Dec 12, 2018
CVE-2018-20103
An issue was discovered in dns.c in HAProxy through 1.8.14
7.5
CVSS
6.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.6% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HA
Haproxy · Haproxy
through 1.8.14 · source: NVD
OC
Openshift Container Platform · Redhat
3.11 · source: NVD
UL
Ubuntu Linux · Canonical
16.04; 18.04; 18.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-20103
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-20103
git.haproxy.org
http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=58df5aea0a0c926b2238f65908f5e9f83d1cca25
Third Party Advisory
http://www.securityfocus.com/bid/106280
Third Party Advisory
https://access.redhat.com/errata/RHBA-2019:0326
Third Party Advisory
https://access.redhat.com/errata/RHBA-2019:0327
access.redhat.com
https://access.redhat.com/errata/RHSA-2019:1436
lists.debian.org
https://lists.debian.org/debian-lts-announce/2022/05/msg00045.html
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