CVE-2019-20800

CRITICAL EPSS 79.8%
Published May 18, 20206y ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published May 18, 2020 6y ago
Last Modified Jun 17, 2026 2w ago

Description

In Cherokee through 1.2.104, remote attackers can trigger an out-of-bounds write in cherokee_handler_cgi_add_env_pair in handler_cgi.c by sending many request headers, as demonstrated by a GET request with many "Host: 127.0.0.1" headers.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
79.8% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
cherokee-projectcherokee* ≤1.2.104

References 3

  • github.com https://github.com/cherokee/webserver/issues/1224
    ExploitThird Party Advisory
  • logicaltrust.net https://logicaltrust.net/blog/2019/11/cherokee.html
    ExploitThird Party Advisory
  • security.gentoo.org https://security.gentoo.org/glsa/202012-09
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.