CVE-2019-20800
CVSS v3
9.8
CRITICAL
EPSS Score
2.1 %
exploit probability, as of 2026-10-18
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
- CVE-2019-20800 Red Hat Product Security
cherokee: out-of-bounds write in cherokee_handler_cgi_add_env_pair function in handler_cgi.c
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.
Technical details
- Published
- 2020-05-18
Frequently asked questions
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