CVEvulnerability

CVE-2020-13111

7.5 HIGH Published 2020-05-16 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-05-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-20, CWE-787

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.

Affected configurations

• naviserver project naviserver (>= 4.99.4 <= 4.99.19)

Related

Weakness · CWE (2)

  • CWE-20 Improper Input Validation weakness
  • CWE-787 Out-of-bounds Write weakness

References