Intel

CVE-2018-20615

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 … (CVE-2018-20615)

highEPSS 4.5%

Description

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.

Source: CVELISTV5NVD

Metrics

Severity
high
Priority score
92.01
KEV status
—
Exploit maturity
no public PoC known
XIEM Effective CVSS
7.5
Source: nvd-v3
CVSS v3
7.5
CVSS v4
—
EPSS percentile
90.8 %
Critical — this CVE ranks in the top fifth of all CVEs scored today (rank ≥ 80%).
EPSS score
4.5 %
Moderate — model estimates 1-10% exploitation likelihood.
Published
2019-03-18 16:11 UTC
CWE
—

Affected operating systems

  • linux

    redhat / enterprise_linux7.0

  • linux

    redhat / enterprise_linux7.4

  • linux

    redhat / enterprise_linux7.5

  • linux

    redhat / enterprise_linux7.6

  • linux

    opensuse / leap15.0

  • linux

    canonical / ubuntu_linux16.04

  • linux

    canonical / ubuntu_linux18.04

  • linux

    canonical / ubuntu_linux18.10

Affected products

Products and version ranges extracted from the vendor/CERT advisory. A range like „<4.14.6“ implies the update recommendation „upgrade to 4.14.6 or later“.

  • haproxy

    haproxy1.8.0 – 1.8.19

  • haproxy

    haproxy

  • redhat

    openshift_container_platform

References & sources

IDCVE-2018-20615