CVE-2022-39028
CVE-2022-39028
This page contains facts from public vulnerability sources. Check the original advisory before updating.
telnetd in GNU Inetutils through 2.3, MIT krb5-appl through 1.0.3, and derivative works has a NULL pointer dereference via 0xff 0xf7 or 0xff 0xf8. In a typical installation, the telnetd application would crash but the telnet service would remain available through inetd. However, if the telnetd application has many crashes within a short time interval, the telnet service would become unavailable after inetd logs a "telnet/tcp server failing (looping), service terminated" error. NOTE: MIT krb5-appl is not supported upstream but is shipped by a few Linux distributions. The affected code was removed from the supported MIT Kerberos 5 (aka krb5) product many years ago, at version 1.8.
CVSS 7.5 · High · EPSS 2.3% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
n/a
- Versions
- n/a: Affected
No fix published
inetutils Debian:12
- Affected ranges
- ECOSYSTEM: < 2:2.3-5
Update to 2:2.3-5
inetutils Debian:13
- Affected ranges
- ECOSYSTEM: < 2:2.3-5
Update to 2:2.3-5
inetutils Debian:14
- Affected ranges
- ECOSYSTEM: < 2:2.3-5
Update to 2:2.3-5
inetutils Ubuntu:Pro:14.04:LTS
- Versions
- 2:1.9.1.306-0a482-1
- 2:1.9.1.363-bbc1-1
- 2:1.9.2-1
- 2:1.9.2-1ubuntu0.1~esm1
- Affected ranges
- ECOSYSTEM: < 2:1.9.2-1ubuntu0.1~esm2
Update to 2:1.9.2-1ubuntu0.1~esm2
inetutils Ubuntu:Pro:16.04:LTS
- Versions
- 2:1.9.4-1
- 2:1.9.4-1build1
- 2:1.9.4-1ubuntu0.1~esm1
- 2:1.9.4-1ubuntu0.1~esm2
- Affected ranges
- ECOSYSTEM: < 2:1.9.4-1ubuntu0.1~esm3
Update to 2:1.9.4-1ubuntu0.1~esm3
inetutils Ubuntu:Pro:18.04:LTS
- Versions
- 2:1.9.4-2build1
- 2:1.9.4-3
- 2:1.9.4-3ubuntu0.1
- 2:1.9.4-3ubuntu0.1+esm1
- Affected ranges
- ECOSYSTEM: < 2:1.9.4-3ubuntu0.1+esm2
Update to 2:1.9.4-3ubuntu0.1+esm2
inetutils Ubuntu:20.04:LTS
- Versions
- 2:1.9.4-10build1
- 2:1.9.4-11
- 2:1.9.4-11ubuntu0.1
- Affected ranges
- ECOSYSTEM: < 2:1.9.4-11ubuntu0.2
Update to 2:1.9.4-11ubuntu0.2
inetutils Ubuntu:22.04:LTS
- Versions
- 2:2.0-1
- 2:2.2-2
- Affected ranges
- ECOSYSTEM: < 2:2.2-2ubuntu0.1
Update to 2:2.2-2ubuntu0.1
Original sources
- https://lists.gnu.org/archive/html/bug-inetutils/2022-08/msg00002.html
- https://pierrekim.github.io/blog/2022-08-24-2-byte-dos-freebsd-netbsd-telnetd-netkit-telnetd-inetutils-telnetd-kerberos-telnetd.html
- https://git.hadrons.org/cgit/debian/pkgs/inetutils.git/commit/?id=113da8021710d871c7dd72d2a4d5615d42d64289
- https://lists.debian.org/debian-lts-announce/2022/11/msg00033.html
- https://nvd.nist.gov/vuln/detail/CVE-2022-39028