What is CVE-2020-13111?

CVE-2020-13111 is a high-severity vulnerability in Naviserver Project, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2020-05-16.

How severe is CVE-2020-13111?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Naviserver Project

CVE-2020-13111

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.014 (70.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Naviserver_project Naviserver
N/a — versions n/a

Weakness classification (CWE)

References

cve@mitre.org (Permissions Required, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-13111?: CVE-2020-13111 is a high-severity vulnerability in Naviserver Project, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2020-05-16.
How severe is CVE-2020-13111?: High severity. CVSS v3 base score is 7.5 out of 10.