Vulnerability · Published Sep 3, 2021 · Assigned by mitre
CVE-2021-40491
Medium 6.5
In plain English
A medium-severity security flaw in the inetutils package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.0%top 37.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | inetutils | 2:2.2-1 | DEBIAN-CVE-2021-40491 |
| Debian:13 | inetutils | 2:2.2-1 | DEBIAN-CVE-2021-40491 |
| Debian:14 | inetutils | 2:2.2-1 | DEBIAN-CVE-2021-40491 |
Affected products (as reported)
References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993476
- https://git.savannah.gnu.org/cgit/inetutils.git/commit/?id=58cb043b190fd04effdaea7c9403416b436e50dd
- https://lists.gnu.org/archive/html/bug-inetutils/2021-06/msg00002.html
- [debian-lts-announce] 20221125 [SECURITY] [DLA 3205-1] inetutils security update mailing-list