Is CVE-2022-42898 in the CISA KEV catalog?

No. CVE-2022-42898 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-42898?

CVE-2022-42898 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2022-42898?

CVE-2022-42898 has an EPSS score of 6.42% (93th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-42898?

Upgrade heimdal on debian 11 to 7.7.0+dfsg-2+deb11u2 or later. Fixes are available for 51 affected products.

CVE & CISA-KEV Catalog

CVE-2022-42898

HIGHEPSS 93th pctl

8.8

CVSS v3

NVD

Description

PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."

CWE-190Integer Overflow

How to fix

Remediation Available

heimdalDebian

Fixed in:7.7.0+dfsg-2+deb11u2CVE-2022-42898

Fixed in:7.8.git20221115.a6cf945+dfsg-1CVE-2022-42898

krb5Red Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5Rocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-debuginfoRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-debuginfoRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-debugsourceRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-debugsourceRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-develRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-develRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-devel-debuginfoRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-devel-debuginfoRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-libsRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-libsRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-libs-debuginfoRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-libs-debuginfoRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-pkinitRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-pkinitRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-pkinit-debuginfoRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-pkinit-debuginfoRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-serverRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-serverRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-server-debuginfoRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-server-debuginfoRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-server-ldapRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-server-ldapRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-server-ldap-debuginfoRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-server-ldap-debuginfoRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-workstationRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-workstationRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-workstation-debuginfoRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

krb5-workstation-debuginfoRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

libkadm5Red Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

libkadm5Rocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

libkadm5-debuginfoRed Hat / RHEL

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

libkadm5-debuginfoRocky

Fixed in:0:1.18.2-25.el8_8RHEA-2023:3850

heimdalUbuntu

Fixed in:1.6~git20131207+dfsg-1ubuntu1.2+esm3USN-5800-1

Fixed in:1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3USN-5800-1

Fixed in:7.5.0+dfsg-1ubuntu0.3USN-5800-1

Fixed in:7.7.0+dfsg-1ubuntu1.3USN-5800-1

krb5Ubuntu

Fixed in:1.12+dfsg-2ubuntu5.4+esm3USN-5828-1

Fixed in:1.13.2+dfsg-5ubuntu2.2+esm3USN-5828-1

Fixed in:1.16-2ubuntu0.3USN-5828-1

Fixed in:1.17-6ubuntu4.2USN-5828-1

Fixed in:1.19.2-2ubuntu0.1USN-5828-1

Fixed in:1.20-1ubuntu0.1USN-5828-1

krb5-admin-serverUbuntu

Fixed in:1.12+dfsg-2ubuntu5.4+esm3USN-5828-1

Fixed in:1.13.2+dfsg-5ubuntu2.2+esm3USN-5828-1

Fixed in:1.16-2ubuntu0.3USN-5828-1

Fixed in:1.17-6ubuntu4.2USN-5828-1

Fixed in:1.19.2-2ubuntu0.1USN-5828-1

Fixed in:1.20-1ubuntu0.1USN-5828-1

krb5-kdcUbuntu

Fixed in:1.12+dfsg-2ubuntu5.4+esm3USN-5828-1

Fixed in:1.13.2+dfsg-5ubuntu2.2+esm3USN-5828-1

Fixed in:1.16-2ubuntu0.3USN-5828-1

Fixed in:1.17-6ubuntu4.2USN-5828-1

Fixed in:1.19.2-2ubuntu0.1USN-5828-1

Fixed in:1.20-1ubuntu0.1USN-5828-1

krb5-userUbuntu

Fixed in:1.12+dfsg-2ubuntu5.4+esm3USN-5828-1

Fixed in:1.13.2+dfsg-5ubuntu2.2+esm3USN-5828-1

Fixed in:1.16-2ubuntu0.3USN-5828-1

Fixed in:1.17-6ubuntu4.2USN-5828-1

Fixed in:1.19.2-2ubuntu0.1USN-5828-1

Fixed in:1.20-1ubuntu0.1USN-5828-1

libasn1-8-heimdalUbuntu

Fixed in:1.6~git20131207+dfsg-1ubuntu1.2+esm3USN-5800-1

Fixed in:1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3USN-5800-1

Fixed in:7.5.0+dfsg-1ubuntu0.3USN-5800-1

Fixed in:7.7.0+dfsg-1ubuntu1.3USN-5800-1

libgssapi-krb5-2Ubuntu

Fixed in:1.12+dfsg-2ubuntu5.4+esm3USN-5828-1

Fixed in:1.13.2+dfsg-5ubuntu2.2+esm3USN-5828-1

Fixed in:1.16-2ubuntu0.3USN-5828-1

Fixed in:1.17-6ubuntu4.2USN-5828-1

Fixed in:1.19.2-2ubuntu0.1USN-5828-1

Fixed in:1.20-1ubuntu0.1USN-5828-1

libgssapi3-heimdalUbuntu

Fixed in:1.6~git20131207+dfsg-1ubuntu1.2+esm3USN-5800-1

Fixed in:1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3USN-5800-1

Fixed in:7.5.0+dfsg-1ubuntu0.3USN-5800-1

Fixed in:7.7.0+dfsg-1ubuntu1.3USN-5800-1

libhdb9-heimdalUbuntu

Fixed in:1.6~git20131207+dfsg-1ubuntu1.2+esm3USN-5800-1

Fixed in:1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3USN-5800-1

Fixed in:7.5.0+dfsg-1ubuntu0.3USN-5800-1

Fixed in:7.7.0+dfsg-1ubuntu1.3USN-5800-1

libhx509-5-heimdalUbuntu

Fixed in:1.6~git20131207+dfsg-1ubuntu1.2+esm3USN-5800-1

Fixed in:1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3USN-5800-1

Fixed in:7.5.0+dfsg-1ubuntu0.3USN-5800-1

Fixed in:7.7.0+dfsg-1ubuntu1.3USN-5800-1

libkdb5-10Ubuntu

Fixed in:1.19.2-2ubuntu0.1USN-5828-1

Fixed in:1.20-1ubuntu0.1USN-5828-1

libkdb5-7Ubuntu

Fixed in:1.12+dfsg-2ubuntu5.4+esm3USN-5828-1

libkdb5-8Ubuntu

Fixed in:1.13.2+dfsg-5ubuntu2.2+esm3USN-5828-1

libkdb5-9Ubuntu

Fixed in:1.16-2ubuntu0.3USN-5828-1

Fixed in:1.17-6ubuntu4.2USN-5828-1

libkrb5-26-heimdalUbuntu

Fixed in:1.6~git20131207+dfsg-1ubuntu1.2+esm3USN-5800-1

Fixed in:1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3USN-5800-1

Fixed in:7.5.0+dfsg-1ubuntu0.3USN-5800-1

Fixed in:7.7.0+dfsg-1ubuntu1.3USN-5800-1

sambaUbuntu

Fixed in:2:4.3.11+dfsg-0ubuntu0.14.04.20+esm13USN-7582-1

Fixed in:2:4.3.11+dfsg-0ubuntu0.16.04.34+esm2USN-7582-1

Fixed in:2:4.7.6+dfsg~ubuntu-0ubuntu2.29+esm1USN-7582-1

Fixed in:2:4.13.17~dfsg-0ubuntu1.20.04.4USN-5822-1

Fixed in:2:4.15.13+dfsg-0ubuntu0.20.04.1USN-5936-1

Fixed in:2:4.15.13+dfsg-0ubuntu1USN-5822-1

Fixed in:2:4.16.8+dfsg-0ubuntu1USN-5822-1

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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

6.42%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Patch2

Vendor Advisory3

Third-Party Advisory2

Other references4

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	90%	-	-
CVE-2017-3599	High	7.5	90%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	Fix

Embed a live status badge for CVE-2022-42898

Markdown

[![CVE-2022-42898](https://tridentstack.com/cve/badge/CVE-2022-42898.svg)](https://tridentstack.com/cve/CVE-2022-42898)

HTML

<a href="https://tridentstack.com/cve/CVE-2022-42898"><img src="https://tridentstack.com/cve/badge/CVE-2022-42898.svg" alt="CVE-2022-42898"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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 2025-04-14.