01 Record

CVE-2018-20615

An out-of-bounds read issue was discovered in the HTTP/2 protocol decoder in HAProxy 1.8.x and 1.9.x through 1.9.0 which can result in a crash. The processing of the PRIORITY flag in a HEADERS frame

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

An out-of-bounds read issue was discovered in the HTTP/2 protocol decoder in HAProxy 1.8.x and 1.9.x through 1.9.0 which can result in a crash. The processing of the PRIORITY flag in a HEADERS frame

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 4.45% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 90.9% of scored records. A rank, not a probability.
NVD base score: 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2019-03-18 16:11Z7 YR AGO

Last updated

2024-08-05 12:05Z2 YR AGO

Reserved

2018-12-31

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

10e71d01c613656d9399d06a724e5ec1935b3b4f0a3721dab87f6eb734816b14

05 Affected products

VendorProductVersionsPlatforms

canonicalubuntu_linuxNot specified—

haproxyhaproxyNot specified—

opensuseleapNot specified—

redhatenterprise_linuxNot specified—

redhatopenshiftNot specified—

redhatopenshift_container_platformNot specified—

redhatopenstackNot specified—

redhatrhel_software_collectionsNot specified—

06 References

www.securityfocus.com106645http://www.securityfocus.com/bid/106645vdb-entryx_refsource_BID
access.redhat.comRHSA-2019:0275https://access.redhat.com/errata/RHSA-2019:0275vendor-advisoryx_refsource_REDHAT
lists.opensuse.org[opensuse-security-announce] 20190213 [security-announce] openSUSE-SU-2019:0166-1: important: Security update for haproxyhttp://lists.opensuse.org/opensuse-security-announce/2019-02/msg00018.htmlmailing-listx_refsource_MLIST
usn.ubuntu.com3858-1https://usn.ubuntu.com/3858-1/vendor-advisoryx_refsource_UBUNTU
www.mail-archive.com[haproxy@formilux.org] 20190108 [ANNOUNCE] haproxy-1.8.17https://www.mail-archive.com/haproxy%40formilux.org/msg32304.htmlmailing-listx_refsource_MLIST
access.redhat.comRHBA-2019:0327https://access.redhat.com/errata/RHBA-2019:0327vendor-advisoryx_refsource_REDHAT

07 Fixed in

Debian 12

haproxy
Fixed in 1.8.16-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

haproxy
Fixed in 1.8.16-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

haproxy
Fixed in 1.8.16-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

haproxy
Fixed in 1.8.8-1ubuntu0.3

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.