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redhatcveRedhat.comRH:CVE-2022-39028
HistorySep 13, 2022 - 12:55 p.m.

CVE-2022-39028

2022-09-1312:55:39
redhat.com
access.redhat.com
27
mit krb5-appl
telnetd application
null pointer dereference
telnet service
inetd
crashing
service termination

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.002 Low

EPSS

Percentile

55.9%

A flaw was found in MIT krb5-appl, where it has a NULL pointer dereference via 0xff 0xf7 or 0xff 0xf8. The telnetd application would crash in a typical installation, 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.

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.002 Low

EPSS

Percentile

55.9%