7.5
HIGH
CVE-2018-20615
HAProxy HTTP2 Out-of-Bounds Read Vulnerability
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 requires 5 extra bytes, and while these bytes are skipped, the total frame length was not re-checked to make sure they were present in the frame.

INFO

Published Date :

March 21, 2019, 4 p.m.

Last Modified :

Nov. 7, 2023, 2:56 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2018-20615 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux
2 Redhat openshift_container_platform
1 Canonical ubuntu_linux
1 Opensuse leap
1 Haproxy haproxy
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-20615.

URL Resource
http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00018.html Mailing List Third Party Advisory
http://www.securityfocus.com/bid/106645 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHBA-2019:0327 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0275 Third Party Advisory
https://usn.ubuntu.com/3858-1/ Third Party Advisory
https://www.mail-archive.com/haproxy%40formilux.org/msg32304.html

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-20615 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-20615 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://www.mail-archive.com/haproxy%40formilux.org/msg32304.html [No types assigned]
    Removed Reference MITRE https://www.mail-archive.com/[email protected]/msg32304.html
  • Modified Analysis by [email protected]

    Apr. 25, 2019

    Action Type Old Value New Value
    Changed Reference Type https://access.redhat.com/errata/RHBA-2019:0327 No Types Assigned https://access.redhat.com/errata/RHBA-2019:0327 Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* OR *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Apr. 24, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHBA-2019:0327 [No Types Assigned]
  • Initial Analysis by [email protected]

    Mar. 22, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:0275 No Types Assigned https://access.redhat.com/errata/RHSA-2019:0275 Third Party Advisory
    Changed Reference Type https://www.mail-archive.com/[email protected]/msg32304.html No Types Assigned https://www.mail-archive.com/[email protected]/msg32304.html Mailing List, Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/106645 No Types Assigned http://www.securityfocus.com/bid/106645 Third Party Advisory, VDB Entry
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00018.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00018.html Mailing List, Third Party Advisory
    Changed Reference Type https://usn.ubuntu.com/3858-1/ No Types Assigned https://usn.ubuntu.com/3858-1/ Third Party Advisory
    Added CWE CWE-125
    Added CPE Configuration OR *cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* versions from (including) 1.8.0 up to (including) 1.8.19 *cpe:2.3:a:haproxy:haproxy:1.9.0:-:*:*:*:*:*:* *cpe:2.3:a:haproxy:haproxy:1.9.0:dev0:*:*:*:*:*:* *cpe:2.3:a:haproxy:haproxy:1.9.0:dev1:*:*:*:*:*:* *cpe:2.3:a:haproxy:haproxy:1.9.0:dev10:*:*:*:*:*:* *cpe:2.3:a:haproxy:haproxy:1.9.0:dev11:*:*:*:*:*:* *cpe:2.3:a:haproxy:haproxy:1.9.0:dev2:*:*:*:*:*:* *cpe:2.3:a:haproxy:haproxy:1.9.0:dev3:*:*:*:*:*:* *cpe:2.3:a:haproxy:haproxy:1.9.0:dev4:*:*:*:*:*:* *cpe:2.3:a:haproxy:haproxy:1.9.0:dev5:*:*:*:*:*:* *cpe:2.3:a:haproxy:haproxy:1.9.0:dev6:*:*:*:*:*:* *cpe:2.3:a:haproxy:haproxy:1.9.0:dev7:*:*:*:*:*:* *cpe:2.3:a:haproxy:haproxy:1.9.0:dev8:*:*:*:*:*:* *cpe:2.3:a:haproxy:haproxy:1.9.0:dev9:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-20615 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-20615 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.43 }} -0.03%

score

0.74881

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability