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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.014 (72.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
Weakness classification (CWE)
References
- sourceforge.net/p/naviserver/bugs/89/ (Permissions Required, Third Party Advisory)
- bitbucket.org/naviserver/naviserver/commits/a5c3079f1d8996d5f34c9384a440acf3519… (Patch, Third Party Advisory)
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.