CVE-2020-13111

HIGH

NaviServer 4.99.4-4.99.19 - Denial of Service via Chunked Transfer Request

Title source: llm
STIX 2.1

Description

NaviServer 4.99.4 to 4.99.19 allows denial of service due to the nsd/driver.c ChunkedDecode function not properly validating the length of a chunk. A remote attacker can craft a chunked-transfer request that will result in a negative value being passed to memmove via the size parameter, causing the process to crash.

References (2)

Core 2
Core References
Permissions Required, Third Party Advisory x_refsource_misc
https://sourceforge.net/p/naviserver/bugs/89/

Scores

CVSS v3 7.5
EPSS 0.0058
EPSS Percentile 69.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-20 CWE-787
Status published
Products (1)
naviserver_project/naviserver 4.99.4 - 4.99.19
Published May 16, 2020
Tracked Since Feb 18, 2026