Vulnerability Monitor

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CVE-2022-39028

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.

Published

2022-08-30T05:15:08.117

Last Modified

2024-11-21T07:17:24.353

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses
  • Type: Primary
    CWE-476
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application gnu inetutils ≤ 2.3 Yes
Application mit kerberos_5 ≤ 1.0.3 Yes
Operating System debian debian_linux 10.0 Yes
Application netkit-telnet_project netkit-telnet ≤ 0.17 Yes
References