Vulnerability in GNU Inetutils
CVE-2021-40491
The ftp client in GNU Inetutils before 2.2 does not validate addresses returned by PASV/LSPV responses to make sure they match the server address. This is similar to CVE-2020-8284 for curl.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.010 (61.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 62nd percentile — 61.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: -0.000
Affected products
- GNU Inetutils
- Debian Linux — versions 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugs.debian.org/cgi-bin/bugreport.cgi (Third Party Advisory)
- git.savannah.gnu.org/cgit/inetutils.git/commit/ (Patch, Vendor Advisory)
- lists.gnu.org/archive/html/bug-inetutils/2021-06/msg00002.html (Mailing List, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2022/11/msg00033.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-40491?
- CVE-2021-40491 is a medium-severity vulnerability in GNU Inetutils, classified under Insufficient Verification of Data Authenticity. CVSS score: 6.5/10. Published 2021-09-03.
- How severe is CVE-2021-40491?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2021-40491 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.