CVE-2018-20102

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 12-12-2018 06:29

Last modified: - 02-06-2022 04:15

Total changes: - 2

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Low

Attack complexity

Network

Attack vector

None

Availability

High

Confidentiality

None

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

7.5

Base score

3.9

3.6

Exploitability score

Impact score

Verification logic

vendor=haproxy AND product=haproxy AND versionEndIncluding=1.8.14

vendor=canonical AND product=ubuntu_linux AND version=16.04 AND software_edition=lts

vendor=canonical AND product=ubuntu_linux AND version=18.04 AND software_edition=lts

vendor=canonical AND product=ubuntu_linux AND version=18.10

vendor=Red Hat Enterprise Linux AND product=openshift_container_platform AND version=3.11

Reference

http://git.haproxy.org/?p=haproxy.git;a=commit;h=efbbdf72992cd20458259962346044cafd9331c0
106223-Third Party Advisory, VDB Entry
USN-3858-1-Third Party Advisory
RHBA-2019:0326-Third Party Advisory
RHBA-2019:0327-Third Party Advisory
RHSA-2019:1436-
[debian-lts-announce] 20220530 [SECURITY] [DLA 3034-1] haproxy security update-

Keywords

CVE-2018-20102

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2018-20102

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures