7.5 CVE-2022-39028
Exploit Patch
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.
https://nvd.nist.gov/vuln/detail/CVE-2022-39028
Categories
CWE-476 : NULL Pointer Dereference
NULL pointer dereference issues can occur through a number of flaws, including race conditions, and simple programming omissions.
References
MISC Patch Exploit
| https://lists.gnu.org/archive/html/bug-inetutils/2022-08/msg00002.html Mailing List Vendor Advisory |
| https://git.hadrons.org/cgit/debian/pkgs/inetutils.git/commit/?id=113da8021710d871c7dd72d2a4d5615d42d64289 Mailing List Patch Vendor Advisory |
| https://pierrekim.github.io/blog/2022-08-24-2-byte-dos-freebsd-netbsd-telnetd-netkit-telnetd-inetutils-telnetd-kerberos-telnetd.html Exploit Patch Third Party Advisory |
_MLIST
| [debian-lts-announce] 20221125 [SECURITY] [DLA 3205-1] inetutils security update Mailing List Third Party Advisory |
CPE
| cpe | start | end |
|---|---|---|
| Configuration 1 | ||
| cpe:2.3:a:gnu:inetutils:*:*:*:*:*:*:*:* | <= 2.3 | |
| Configuration 2 | ||
| cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* | <= 1.0.3 | |
| Configuration 3 | ||
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | ||
Patch
Exploits
Exploit-db.com
| id | description | date | |
|---|---|---|---|
| No known exploits | |||
Other (github, ...)
| Url |
|---|
| https://pierrekim.github.io/blog/2022-08-24-2-byte-dos-freebsd-netbsd-telnetd-netkit-telnetd-inetutils-telnetd-kerberos-telnetd.html |
CAPEC
| id | description | severity |
|---|---|---|
| No entry | ||
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