Out-of-bounds Read in Haproxy
CVE-2018-14645
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.030 (86.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000
Affected products
- Haproxy
- [Unknown] Haproxy — versions 1.8.14
- Canonical Ubuntu Linux — versions 18.04
- Red Hat Enterprise Linux — versions 7.0, 7.3, 7.4
- Red Hat Openshift — versions 3.10
- Red Hat Openshift Container Platform — versions 3.9
Weakness classification (CWE)
References
- usn.ubuntu.com/3780-1/ (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:2882 (vendor-advisory, Third Party Advisory)
- www.mail-archive.com/haproxy@formilux.org/msg31253.html (mailing-list)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Mitigation, Issue Tracking)
- access.redhat.com/errata/RHBA-2019:0028 (vendor-advisory)
Frequently asked questions
- What is CVE-2018-14645?
- CVE-2018-14645 is a high-severity vulnerability in Haproxy, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2018-09-21.
- How severe is CVE-2018-14645?
- High severity. CVSS v3 base score is 7.5 out of 10.