Vulnerability Name:

CVE-2018-20102 (CCN-154270)

Assigned:2018-12-12
Published:2018-12-12
Updated:2022-06-02
Summary: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.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-125
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2018-20102

Source: CCN
Type: haproxy GIT Repository
BUG: dns: Prevent out-of-bounds read in dns_validate_dns_response()

Source: MISC
Type: Third Party Advisory, Patch
http://git.haproxy.org/?p=haproxy.git;a=commit;h=efbbdf72992cd20458259962346044cafd9331c0

Source: BID
Type: Third Party Advisory, VDB Entry
106223

Source: REDHAT
Type: Third Party Advisory
RHBA-2019:0326

Source: REDHAT
Type: Third Party Advisory
RHBA-2019:0327

Source: REDHAT
Type: UNKNOWN
RHSA-2019:1436

Source: XF
Type: UNKNOWN
haproxy-cve201820102-info-disc(154270)

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20220530 [SECURITY] [DLA 3034-1] haproxy security update

Source: UBUNTU
Type: Third Party Advisory
USN-3858-1

Source: CCN
Type: IBM Security Bulletin 1127211 (Watson Studio Local)
Multiple Vulnerabilities in HAProxy affects IBM Watson Studio Local

Vulnerable Configuration:Configuration 1:
  • cpe:/a:haproxy:haproxy:*:*:*:*:*:*:*:* (Version <= 1.8.14)

    • Configuration 2:
  • cpe:/o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:haproxy:haproxy:1.8.14:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:201820102
    V
    		CVE-2018-20102
    2022-09-02
    oval:org.opensuse.security:def:18
    P
    		bluez-5.55-1.57 on GA media (Moderate)
    2022-06-13
    oval:org.opensuse.security:def:4167
    P
    		Security update for webkit2gtk3 (Important)
    2021-11-03
    oval:org.opensuse.security:def:4159
    P
    		Security update for webkit2gtk3 (Important)
    2021-10-12
    oval:org.opensuse.security:def:4222
    P
    		Security update for ffmpeg (Moderate)
    2021-10-06
    oval:org.opensuse.security:def:4281
    P
    		Security update for the Linux Kernel (Important)
    2021-09-23
    oval:org.opensuse.security:def:67541
    P
    		Security update for the Linux Kernel (Important)
    2021-08-17
    oval:org.opensuse.security:def:5061
    P
    		Security update for freeradius-server (Moderate)
    2021-06-11
    oval:org.opensuse.security:def:70894
    P
    		dstat-0.7.3-2.16 on GA media (Moderate)
    2021-06-08
    oval:org.opensuse.security:def:70781
    P
    		Security update for gstreamer, gstreamer-plugins-bad, gstreamer-plugins-base, gstreamer-plugins-good, gstreamer-plugins-ugly (Important)
    2021-06-01
    oval:org.opensuse.security:def:5039
    P
    		Security update for graphviz (Critical)
    2021-05-19
    oval:org.opensuse.security:def:4401
    P
    		Security update for the Linux Kernel (Live Patch 11 for SLE 12 SP5) (Important)
    2021-04-28
    oval:org.opensuse.security:def:4397
    P
    		Security update for the Linux Kernel (Live Patch 6 for SLE 12 SP5) (Important)
    2021-04-28
    oval:org.opensuse.security:def:4387
    P
    		Security update for the Linux Kernel (Live Patch 11 for SLE 12 SP5) (Important)
    2021-04-07
    oval:org.opensuse.security:def:4180
    P
    		Security update for avahi (Moderate)
    2021-02-23
    oval:org.opensuse.security:def:4394
    P
    		Security update for the Linux Kernel (Important)
    2021-01-15
    oval:org.opensuse.security:def:4362
    P
    		Security update for the Linux Kernel (Live Patch 1 for SLE 12 SP5) (Important)
    2020-12-07
    oval:org.opensuse.security:def:96503
    P
    		haproxy-1.8.17~git0.e89d25b2-6.23 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:103193
    P
    		haproxy-1.8.17~git0.e89d25b2-6.23 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:89538
    P
    		haproxy-1.8.17~git0.e89d25b2-6.23 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:4265
    P
    		Security update for the Linux Kernel (Live Patch 4 for SLE 15) (Important)
    2020-12-02
    oval:org.opensuse.security:def:4342
    P
    		Security update for the Linux Kernel (Live Patch 14 for SLE 15) (Important)
    2020-12-02
    oval:org.opensuse.security:def:4253
    P
    		Security update for the Linux Kernel (Live Patch 9 for SLE 15) (Important)
    2020-12-02
    oval:org.opensuse.security:def:67441
    P
    		Security update for the Linux Kernel (Important)
    2020-12-01
    oval:org.opensuse.security:def:64107
    P
    		Security update for mariadb (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:64194
    P
    		haproxy on GA media (Moderate)
    2020-12-01
    oval:com.ubuntu.xenial:def:2018201020000000
    V
    		CVE-2018-20102 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-12-12
    oval:com.ubuntu.bionic:def:201820102000
    V
    		CVE-2018-20102 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-12-12
    oval:com.ubuntu.cosmic:def:201820102000
    V
    		CVE-2018-20102 on Ubuntu 18.10 (cosmic) - medium.
    2018-12-12
    oval:com.ubuntu.cosmic:def:2018201020000000
    V
    		CVE-2018-20102 on Ubuntu 18.10 (cosmic) - medium.
    2018-12-12
    oval:com.ubuntu.trusty:def:201820102000
    V
    		CVE-2018-20102 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-12-12
    oval:com.ubuntu.bionic:def:2018201020000000
    V
    		CVE-2018-20102 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-12-12
    oval:com.ubuntu.xenial:def:201820102000
    V
    		CVE-2018-20102 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-12-12
    BACK
    haproxy haproxy *
    canonical ubuntu linux 16.04
    canonical ubuntu linux 18.04
    canonical ubuntu linux 18.10
    redhat openshift container platform 3.11
    haproxy haproxy 1.8.14