CVE-2020-11100

Advisory lineage Upstream: 0 Downstream: 14
Modified
Published: 02 Apr 2020, 14:23
Last modified:04 Aug 2024, 11:21

Vulnerability Summary

Overall Risk (default)
high
50/100
CVSS Score
8.8 HIGH
v3.1 (nvd)
EPSS Score
74.4% CRITICAL
74% probability -0.40%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 Apr 2020, 14:23
Published
Vulnerability first disclosed
04 Aug 2024, 11:21
Last Modified
Vulnerability information updated

Description

In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request, possibly causing remote code execution.

CVSS Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.5AV:N/AC:L/Au:S/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 74.40%• Percentile: 99%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • canonical•ubuntu_linux

    18.04 | 19.10

  • debian•debian_linux

    10.0

  • fedoraproject•fedora

    30 | 31

  • haproxy•haproxy

    ≥ 1.8.0, < 2.1.4

  • opensuse•leap

    15.1

  • redhat•openshift_container_platform

    3.11 | 4.0

References (14)