Buffer overflow in Cherokee-Project Cherokee
CVE-2019-20800
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.021 (82.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
Weakness classification (CWE)
References
- logicaltrust.net/blog/2019/11/cherokee.html (Exploit, Third Party Advisory)
- github.com/cherokee/webserver/issues/1224 (Exploit, Third Party Advisory)
- security.gentoo.org/glsa/202012-09 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-20800?
- CVE-2019-20800 is a critical-severity vulnerability in Cherokee-Project Cherokee, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2020-05-18.
- How severe is CVE-2019-20800?
- Critical severity. CVSS v3 base score is 9.8 out of 10.