CVE-2021-26843

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Source
https://cve.org/CVERecord?id=CVE-2021-26843
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26843.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-26843
Published
2021-02-07T21:15:11Z
Modified
2026-07-08T21:26:20Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An issue was discovered in sthttpd through 2.27.1. On systems where the strcpy function is implemented with memcpy, the de_dotdot function may cause a Denial-of-Service (daemon crash) due to overlapping memory ranges being passed to memcpy. This can triggered with an HTTP GET request for a crafted filename. NOTE: this is similar to CVE-2017-10671, but occurs in a different part of the de_dotdot function.

References

Affected packages

Git / github.com/blueness/sthttpd

Affected ranges

Type
GIT
Repo
https://github.com/blueness/sthttpd
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
2845bf5bff2b820d2336c8c8061cbfc5f271e720
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:sthttpd_project:sthttpd:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.27.1"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

v2.*
v2.27.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26843.json"