Improper input validation in Man2html Project
CVE-2021-40648
In man2html 1.6g, a filename can be created to overwrite the previous size parameter of the next chunk and the fd, bk, fd_nextsize, bk_nextsize of the current chunk. The next chunk is then freed later on, causing a freeing of an arbitrary amount of memory.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (23.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Man2html Project — versions 1.6g
Weakness classification (CWE)
References
- gist.github.com/untaman/cb58123fe89fc65e3984165db5d40933 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-40648?
- CVE-2021-40648 is a medium-severity vulnerability in Man2html Project, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2022-09-09.
- How severe is CVE-2021-40648?
- Medium severity. CVSS v3 base score is 5.5 out of 10.