CVE-2023-40303
inetutils-ftp: GNU inetutils before 2.5 may allow privilege escalation because ofunchecked return values of set*id() family function...
CVE-2023-40303 is fixed in 14 products on 1 platform, first by inetutils-ftp 2:1.9.4-3ubuntu0.1+esm2, released August 13, 2023. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.8
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0041
35th percentile
GNU inetutils before 2.5 may allow privilege escalation because ofunchecked return values of set*id() family functions in ftpd, rcp, rlogin,rsh, rshd, and uucpd. This is, for example, relevant if the setuid systemcall fails when a process is trying to drop privileges before letting anordinary user control the activities of the process.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| inetutils · Debian 12.15 (bookworm) | 2:2.4-2+deb12u1 | DEBIAN-CVE-2023-40303 | Aug 14, 2023 |
| inetutils · Debian 13.5 (trixie) | 2:2.4-3 | DEBIAN-CVE-2023-40303 | Aug 14, 2023 |
| inetutils · Debian 14 | 2:2.4-3 | DEBIAN-CVE-2023-40303 | Aug 14, 2023 |
| inetutils-ftp · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm2 | inetutils-ftp 2:1.9.4-3ubuntu0.1+esm2 | Aug 13, 2023 |
| inetutils-ftp · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2 | inetutils-ftp 2:1.9.4-11ubuntu0.2 | Aug 13, 2023 |
| inetutils-ftp · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.1 | inetutils-ftp 2:2.2-2ubuntu0.1 | Aug 13, 2023 |
| inetutils-ftp · Ubuntu 24.04.5 LTS (noble) | 2:2.4-3ubuntu1 | inetutils-ftp 2:2.4-3ubuntu1 | Aug 13, 2023 |
| inetutils-ftp · Ubuntu 24.10 (oracular) | 2:2.5-3ubuntu4 | inetutils-ftp 2:2.5-3ubuntu4 | Jan 16, 2026 |
| inetutils-ftp · Ubuntu 25.04 (plucky) | 2:2.5-5ubuntu1 | inetutils-ftp 2:2.5-5ubuntu1 | Jan 16, 2026 |
| inetutils-ftpd · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm2 | inetutils-ftpd 2:1.9.4-3ubuntu0.1+esm2 | Aug 13, 2023 |
| inetutils-ftpd · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2 | inetutils-ftpd 2:1.9.4-11ubuntu0.2 | Aug 13, 2023 |
| inetutils-ftpd · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.1 | inetutils-ftpd 2:2.2-2ubuntu0.1 | Aug 13, 2023 |
| inetutils-ftpd · Ubuntu 24.04.5 LTS (noble) | 2:2.4-3ubuntu1 | inetutils-ftpd 2:2.4-3ubuntu1 | Aug 13, 2023 |
| inetutils-ftpd · Ubuntu 24.10 (oracular) | 2:2.5-3ubuntu4 | inetutils-ftpd 2:2.5-3ubuntu4 | Jan 16, 2026 |
| inetutils-ftpd · Ubuntu 25.04 (plucky) | 2:2.5-5ubuntu1 | inetutils-ftpd 2:2.5-5ubuntu1 | Jan 16, 2026 |
| inetutils-inetd · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm2 | inetutils-inetd 2:1.9.4-3ubuntu0.1+esm2 | Aug 13, 2023 |
| inetutils-inetd · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2 | inetutils-inetd 2:1.9.4-11ubuntu0.2 | Aug 13, 2023 |
| inetutils-inetd · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.1 | inetutils-inetd 2:2.2-2ubuntu0.1 | Aug 13, 2023 |
| inetutils-inetd · Ubuntu 24.04.5 LTS (noble) | 2:2.4-3ubuntu1 | inetutils-inetd 2:2.4-3ubuntu1 | Aug 13, 2023 |
| inetutils-inetd · Ubuntu 24.10 (oracular) | 2:2.5-3ubuntu4 | inetutils-inetd 2:2.5-3ubuntu4 | Jan 16, 2026 |
| inetutils-inetd · Ubuntu 25.04 (plucky) | 2:2.5-5ubuntu1 | inetutils-inetd 2:2.5-5ubuntu1 | Jan 16, 2026 |
| inetutils-ping · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm2 | inetutils-ping 2:1.9.4-3ubuntu0.1+esm2 | Aug 13, 2023 |
| inetutils-ping · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2 | inetutils-ping 2:1.9.4-11ubuntu0.2 | Aug 13, 2023 |
| inetutils-ping · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.1 | inetutils-ping 2:2.2-2ubuntu0.1 | Aug 13, 2023 |
| inetutils-ping · Ubuntu 24.04.5 LTS (noble) | 2:2.4-3ubuntu1 | inetutils-ping 2:2.4-3ubuntu1 | Aug 13, 2023 |
| inetutils-ping · Ubuntu 24.10 (oracular) | 2:2.5-3ubuntu4 | inetutils-ping 2:2.5-3ubuntu4 | Jan 16, 2026 |
| inetutils-ping · Ubuntu 25.04 (plucky) | 2:2.5-5ubuntu1 | inetutils-ping 2:2.5-5ubuntu1 | Jan 16, 2026 |
| inetutils-syslogd · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm2 | inetutils-syslogd 2:1.9.4-3ubuntu0.1+esm2 | Aug 13, 2023 |
| inetutils-syslogd · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2 | inetutils-syslogd 2:1.9.4-11ubuntu0.2 | Aug 13, 2023 |
| inetutils-syslogd · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.1 | inetutils-syslogd 2:2.2-2ubuntu0.1 | Aug 13, 2023 |
| inetutils-syslogd · Ubuntu 24.04.5 LTS (noble) | 2:2.4-3ubuntu1 | inetutils-syslogd 2:2.4-3ubuntu1 | Aug 13, 2023 |
| inetutils-syslogd · Ubuntu 24.10 (oracular) | 2:2.5-3ubuntu4 | inetutils-syslogd 2:2.5-3ubuntu4 | Jan 16, 2026 |
| inetutils-syslogd · Ubuntu 25.04 (plucky) | 2:2.5-5ubuntu1 | inetutils-syslogd 2:2.5-5ubuntu1 | Jan 16, 2026 |
| inetutils-talk · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm2 | inetutils-talk 2:1.9.4-3ubuntu0.1+esm2 | Aug 13, 2023 |
| inetutils-talk · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2 | inetutils-talk 2:1.9.4-11ubuntu0.2 | Aug 13, 2023 |
| inetutils-talk · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.1 | inetutils-talk 2:2.2-2ubuntu0.1 | Aug 13, 2023 |
| inetutils-talk · Ubuntu 24.04.5 LTS (noble) | 2:2.4-3ubuntu1 | inetutils-talk 2:2.4-3ubuntu1 | Aug 13, 2023 |
| inetutils-talk · Ubuntu 24.10 (oracular) | 2:2.5-3ubuntu4 | inetutils-talk 2:2.5-3ubuntu4 | Jan 16, 2026 |
| inetutils-talk · Ubuntu 25.04 (plucky) | 2:2.5-5ubuntu1 | inetutils-talk 2:2.5-5ubuntu1 | Jan 16, 2026 |
| inetutils-talkd · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm2 | inetutils-talkd 2:1.9.4-3ubuntu0.1+esm2 | Aug 13, 2023 |
| inetutils-talkd · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2 | inetutils-talkd 2:1.9.4-11ubuntu0.2 | Aug 13, 2023 |
| inetutils-talkd · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.1 | inetutils-talkd 2:2.2-2ubuntu0.1 | Aug 13, 2023 |
| inetutils-talkd · Ubuntu 24.04.5 LTS (noble) | 2:2.4-3ubuntu1 | inetutils-talkd 2:2.4-3ubuntu1 | Aug 13, 2023 |
| inetutils-talkd · Ubuntu 24.10 (oracular) | 2:2.5-3ubuntu4 | inetutils-talkd 2:2.5-3ubuntu4 | Jan 16, 2026 |
| inetutils-talkd · Ubuntu 25.04 (plucky) | 2:2.5-5ubuntu1 | inetutils-talkd 2:2.5-5ubuntu1 | Jan 16, 2026 |
| inetutils-telnet · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm2 | inetutils-telnet 2:1.9.4-3ubuntu0.1+esm2 | Aug 13, 2023 |
| inetutils-telnet · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2 | inetutils-telnet 2:1.9.4-11ubuntu0.2 | Aug 13, 2023 |
| inetutils-telnet · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.1 | inetutils-telnet 2:2.2-2ubuntu0.1 | Aug 13, 2023 |
| inetutils-telnet · Ubuntu 24.04.5 LTS (noble) | 2:2.4-3ubuntu1 | inetutils-telnet 2:2.4-3ubuntu1 | Aug 13, 2023 |
| inetutils-telnet · Ubuntu 24.10 (oracular) | 2:2.5-3ubuntu4 | inetutils-telnet 2:2.5-3ubuntu4 | Jan 16, 2026 |
| inetutils-telnet · Ubuntu 25.04 (plucky) | 2:2.5-5ubuntu1 | inetutils-telnet 2:2.5-5ubuntu1 | Jan 16, 2026 |
| inetutils-telnetd · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm2 | inetutils-telnetd 2:1.9.4-3ubuntu0.1+esm2 | Aug 13, 2023 |
| inetutils-telnetd · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2 | inetutils-telnetd 2:1.9.4-11ubuntu0.2 | Aug 13, 2023 |
| inetutils-telnetd · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.1 | inetutils-telnetd 2:2.2-2ubuntu0.1 | Aug 13, 2023 |
| inetutils-telnetd · Ubuntu 24.04.5 LTS (noble) | 2:2.4-3ubuntu1 | inetutils-telnetd 2:2.4-3ubuntu1 | Aug 13, 2023 |
| inetutils-telnetd · Ubuntu 24.10 (oracular) | 2:2.5-3ubuntu4 | inetutils-telnetd 2:2.5-3ubuntu4 | Jan 16, 2026 |
| inetutils-telnetd · Ubuntu 25.04 (plucky) | 2:2.5-5ubuntu1 | inetutils-telnetd 2:2.5-5ubuntu1 | Jan 16, 2026 |
| inetutils-tools · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm2 | inetutils-tools 2:1.9.4-3ubuntu0.1+esm2 | Aug 13, 2023 |
| inetutils-tools · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2 | inetutils-tools 2:1.9.4-11ubuntu0.2 | Aug 13, 2023 |
| inetutils-tools · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.1 | inetutils-tools 2:2.2-2ubuntu0.1 | Aug 13, 2023 |
| inetutils-tools · Ubuntu 24.04.5 LTS (noble) | 2:2.4-3ubuntu1 | inetutils-tools 2:2.4-3ubuntu1 | Aug 13, 2023 |
| inetutils-tools · Ubuntu 24.10 (oracular) | 2:2.5-3ubuntu4 | inetutils-tools 2:2.5-3ubuntu4 | Jan 16, 2026 |
| inetutils-tools · Ubuntu 25.04 (plucky) | 2:2.5-5ubuntu1 | inetutils-tools 2:2.5-5ubuntu1 | Jan 16, 2026 |
| inetutils-traceroute · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm2 | inetutils-traceroute 2:1.9.4-3ubuntu0.1+esm2 | Aug 13, 2023 |
| inetutils-traceroute · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2 | inetutils-traceroute 2:1.9.4-11ubuntu0.2 | Aug 13, 2023 |
| inetutils-traceroute · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.1 | inetutils-traceroute 2:2.2-2ubuntu0.1 | Aug 13, 2023 |
| inetutils-traceroute · Ubuntu 24.04.5 LTS (noble) | 2:2.4-3ubuntu1 | inetutils-traceroute 2:2.4-3ubuntu1 | Aug 13, 2023 |
| inetutils-traceroute · Ubuntu 24.10 (oracular) | 2:2.5-3ubuntu4 | inetutils-traceroute 2:2.5-3ubuntu4 | Jan 16, 2026 |
| inetutils-traceroute · Ubuntu 25.04 (plucky) | 2:2.5-5ubuntu1 | inetutils-traceroute 2:2.5-5ubuntu1 | Jan 16, 2026 |
| telnet · Ubuntu 24.04.5 LTS (noble) | 0.17+2.4-3ubuntu1 | telnet 0.17+2.4-3ubuntu1 | Aug 13, 2023 |
| telnet · Ubuntu 24.10 (oracular) | 0.17+2.5-3ubuntu4 | telnet 0.17+2.5-3ubuntu4 | Jan 16, 2026 |
| telnet · Ubuntu 25.04 (plucky) | 0.17+2.5-5ubuntu1 | telnet 0.17+2.5-5ubuntu1 | Jan 16, 2026 |
| telnetd · Ubuntu 24.04.5 LTS (noble) | 0.17+2.4-3ubuntu1 | telnetd 0.17+2.4-3ubuntu1 | Aug 13, 2023 |
| telnetd · Ubuntu 24.10 (oracular) | 0.17+2.5-3ubuntu4 | telnetd 0.17+2.5-3ubuntu4 | Jan 16, 2026 |
| telnetd · Ubuntu 25.04 (plucky) | 0.17+2.5-5ubuntu1 | telnetd 0.17+2.5-5ubuntu1 | Jan 16, 2026 |
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