Is CVE-2022-39028 in the CISA KEV catalog?

No. CVE-2022-39028 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-39028?

CVE-2022-39028 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2022-39028?

CVE-2022-39028 has an EPSS score of 1.66% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-39028?

Upgrade inetutils on debian 11 to 2:2.0-1+deb11u1 or later. Fixes are available for 12 affected products.

CVE & CISA-KEV Catalog

CVE-2022-39028

HIGHEPSS 74th pctl

7.5

CVSS v3

NVD

Description

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.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

inetutilsDebian

Fixed in:2:2.0-1+deb11u1CVE-2022-39028

Fixed in:2:2.3-5CVE-2022-39028

inetutilsUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

Fixed in:2:1.9.4-11ubuntu0.2USN-6304-1

Fixed in:2:2.2-2ubuntu0.1USN-6304-1

Fixed in:2:2.4-2ubuntu1.1USN-6304-1

inetutils-ftpUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-ftpdUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-inetdUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-pingUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-syslogdUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-talkUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-telnetUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

inetutils-telnetdUbuntu

Fixed in:2:1.9.4-11ubuntu0.2USN-6304-1

Fixed in:2:2.2-2ubuntu0.1USN-6304-1

Fixed in:2:2.4-2ubuntu1.1USN-6304-1

inetutils-toolsUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

Fixed in:2:1.9.4-11ubuntu0.2USN-6304-1

Fixed in:2:2.2-2ubuntu0.1USN-6304-1

Fixed in:2:2.4-2ubuntu1.1USN-6304-1

inetutils-tracerouteUbuntu

Fixed in:2:1.9.2-1ubuntu0.1~esm2USN-7781-1

Fixed in:2:1.9.4-1ubuntu0.1~esm3USN-7781-1

Fixed in:2:1.9.4-3ubuntu0.1+esm2USN-7781-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.66%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Patch2

Vendor Advisory1

lists.gnu.org

Third-Party Advisory1

lists.debian.org

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.