CVE-2017-10671

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-06-29 · updated 2026-06-17
Weakness: CWE-787

Description

Heap-based Buffer Overflow in the de_dotdot function in libhttpd.c in sthttpd before 2.27.1 allows remote attackers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a crafted filename.

Affected products

Sthttpd Project Sthttpd: before 2.27.1 — fixed in 2.27.1

How to fix

Upgrade to a fixed version: Sthttpd Project Sthttpd 2.27.1. Check the vendor advisory for mitigations.

References

http://www.openwall.com/lists/oss-security/2017/06/15/9
https://github.com/blueness/sthttpd/commit/c0dc63a49d8605649f1d8e4a96c9b468b0bff660
https://github.com/blueness/sthttpd/releases/tag/v2.27.1
http://www.openwall.com/lists/oss-security/2017/06/15/9
https://github.com/blueness/sthttpd/commit/c0dc63a49d8605649f1d8e4a96c9b468b0bff660
https://github.com/blueness/sthttpd/releases/tag/v2.27.1

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