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Vulnerability details: VCID-afuu-t427-qyej
Vulnerability ID VCID-afuu-t427-qyej
Aliases CVE-2018-20615
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-125 Out-of-bounds Read
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-20615.json
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2018-20615
cvssv3 8.2 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2018-20615
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-20615
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00018.html
https://access.redhat.com/errata/RHBA-2019:0327
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-20615.json
https://api.first.org/data/v1/epss?cve=CVE-2018-20615
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20615
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://www.mail-archive.com/haproxy%40formilux.org/msg32304.html
http://www.securityfocus.com/bid/106645
1663060 https://bugzilla.redhat.com/show_bug.cgi?id=1663060
cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.9.0:-:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:1.9.0:-:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.9.0:dev0:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:1.9.0:dev0:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.9.0:dev1:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:1.9.0:dev1:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.9.0:dev10:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:1.9.0:dev10:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.9.0:dev11:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:1.9.0:dev11:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.9.0:dev2:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:1.9.0:dev2:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.9.0:dev3:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:1.9.0:dev3:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.9.0:dev4:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:1.9.0:dev4:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.9.0:dev5:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:1.9.0:dev5:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.9.0:dev6:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:1.9.0:dev6:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.9.0:dev7:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:1.9.0:dev7:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.9.0:dev8:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:1.9.0:dev8:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.9.0:dev9:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haproxy:haproxy:1.9.0:dev9:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:*
CVE-2018-20615 https://nvd.nist.gov/vuln/detail/CVE-2018-20615
RHSA-2019:0275 https://access.redhat.com/errata/RHSA-2019:0275
RHSA-2019:0547 https://access.redhat.com/errata/RHSA-2019:0547
RHSA-2019:0548 https://access.redhat.com/errata/RHSA-2019:0548
USN-3858-1 https://usn.ubuntu.com/3858-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-20615.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-20615
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-20615
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.36853
EPSS Score 0.00152
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:13:19.897157+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/3858-1/ 36.1.3