Vulnerability Details : CVE-2022-42898
Potential exploit
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."
Vulnerability category: OverflowExecute codeDenial of service
Products affected by CVE-2022-42898
- cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*
- cpe:2.3:a:mit:kerberos_5:1.20:beta1:*:*:*:*:*:*
- cpe:2.3:a:mit:kerberos_5:1.20:-:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-42898
6.86%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 90 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-42898
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2025-04-14 |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
|
8.8
|
HIGH | AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
N/A
|
N/A
|
Oracle:CPUOct2023 |
CWE ids for CVE-2022-42898
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2022-42898
-
https://github.com/krb5/krb5/commit/ea92d2f0fcceb54a70910fa32e9a0d7a5afc3583
Patch;Third Party Advisory
-
https://web.mit.edu/kerberos/krb5-1.19/
Release Notes;Vendor Advisory
-
https://www.samba.org/samba/security/CVE-2022-42898.html
Third Party Advisory
-
https://security.gentoo.org/glsa/202310-06
Heimdal: Multiple Vulnerabilities (GLSA 202310-06) — Gentoo security
-
https://bugzilla.samba.org/show_bug.cgi?id=15203
Exploit;Issue Tracking;Patch;Third Party Advisory
-
https://web.mit.edu/kerberos/advisories/
Kerberos Security AdvisoriesVendor Advisory
-
https://web.mit.edu/kerberos/krb5-1.20/README-1.20.1.txt
Vendor Advisory
-
https://security.gentoo.org/glsa/202309-06
Samba: Multiple Vulnerabilities (GLSA 202309-06) — Gentoo security
-
https://github.com/heimdal/heimdal/security/advisories/GHSA-64mq-fvfj-5x3c
PAC parse integer overflows · Advisory · heimdal/heimdal · GitHubThird Party Advisory
-
https://security.netapp.com/advisory/ntap-20230216-0008/
December 2022 Heimdal Vulnerabilities in NetApp Products | NetApp Product Security
-
https://security.netapp.com/advisory/ntap-20230223-0001/
CVE-2022-42898 MIT Kerberos 5 Vulnerability in NetApp Products | NetApp Product Security
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