CVE-2018-14645
An out-of-bounds read access in hpack_valid_idx() resulted in a remote crash and denial of service.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.07%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A flaw was discovered in the HPACK decoder of HAProxy, before 1.8.14, that is used for HTTP/2. An out-of-bounds read access in hpack_valid_idx() resulted in a remote crash and denial of service.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.07% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- haproxy/haproxy · canonical/ubuntu linux · redhat/openshift · redhat/openshift container platform · redhat/enterprise linux
- Source
- secalert@redhat.com
EPSS 3.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://access.redhat.com/errata/RHBA-2019:0028
- https://access.redhat.com/errata/RHSA-2018:2882Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14645Issue Tracking, Mitigation, Third Party Advisory
- https://usn.ubuntu.com/3780-1/Third Party Advisory
- https://www.mail-archive.com/haproxy%40formilux.org/msg31253.html
- https://access.redhat.com/errata/RHBA-2019:0028
- https://access.redhat.com/errata/RHSA-2018:2882Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14645Issue Tracking, Mitigation, Third Party Advisory
- https://usn.ubuntu.com/3780-1/Third Party Advisory
- https://www.mail-archive.com/haproxy%40formilux.org/msg31253.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.