7.5
HIGH CVSS 3.0
CVE-2018-20102
HAProxy OOB Read Vulnerability
Description

An out-of-bounds read in dns_validate_dns_response in dns.c was discovered in HAProxy through 1.8.14. Due to a missing check when validating DNS responses, remote attackers might be able read the 16 bytes corresponding to an AAAA record from the non-initialized part of the buffer, possibly accessing anything that was left on the stack, or even past the end of the 8193-byte buffer, depending on the value of accepted_payload_size.

INFO

Published Date :

Dec. 12, 2018, 5:29 p.m.

Last Modified :

Nov. 21, 2024, 4 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2018-20102 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 Canonical ubuntu_linux
1 Redhat openshift_container_platform
1 Haproxy haproxy
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.0 HIGH [email protected]
Solution
This vulnerability can be remediated by updating HAProxy packages.
  • Update the HAProxy packages.
  • If using RHEL OpenShift Container Platform, update the HAProxy package according to vendor guidance.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-20102 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-2018-20102 weaknesses.

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-2018-20102 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-20102 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=efbbdf72992cd20458259962346044cafd9331c0
    Added Reference http://www.securityfocus.com/bid/106223
    Added Reference https://access.redhat.com/errata/RHBA-2019:0326
    Added Reference https://access.redhat.com/errata/RHBA-2019:0327
    Added Reference https://access.redhat.com/errata/RHSA-2019:1436
    Added Reference https://lists.debian.org/debian-lts-announce/2022/05/msg00045.html
    Added Reference https://usn.ubuntu.com/3858-1/
  • 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 http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=efbbdf72992cd20458259962346044cafd9331c0 [No types assigned]
    Removed Reference MITRE http://git.haproxy.org/?p=haproxy.git;a=commit;h=efbbdf72992cd20458259962346044cafd9331c0
  • CVE Modified by [email protected]

    Jun. 02, 2022

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2022/05/msg00045.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 11, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:1436 [No Types Assigned]
  • 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
  • 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]
  • Modified Analysis by [email protected]

    Mar. 15, 2019

    Action Type Old Value New Value
    Changed Reference Type https://access.redhat.com/errata/RHBA-2019:0326 No Types Assigned https://access.redhat.com/errata/RHBA-2019:0326 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 14, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHBA-2019:0326 [No Types Assigned]
  • Initial Analysis by [email protected]

    Feb. 05, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type http://www.securityfocus.com/bid/106223 No Types Assigned http://www.securityfocus.com/bid/106223 Third Party Advisory, VDB Entry
    Changed Reference Type http://git.haproxy.org/?p=haproxy.git;a=commit;h=efbbdf72992cd20458259962346044cafd9331c0 No Types Assigned http://git.haproxy.org/?p=haproxy.git;a=commit;h=efbbdf72992cd20458259962346044cafd9331c0 Patch, 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 up to (including) 1.8.14
    Added CPE Configuration 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:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jan. 16, 2019

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3858-1/ [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 18, 2018

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/106223 [No Types Assigned]
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.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

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

0.03 }} -0.00%

score

0.07971

percentile