CVE-2022-42898
- State
- Published
- Severity
- 8.8 High
- Published
- Dec 25, 2022
- Updated
- Oct 14, 2026
- Reserved
- Oct 13, 2022
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."
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-190 Integer Overflow or Wraparound
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://web.mit.edu/kerberos/advisories/
- https://www.samba.org/samba/security/CVE-2022-42898.html
- https://github.com/krb5/krb5/commit/ea92d2f0fcceb54a70910fa32e9a0d7a5afc3583
- https://github.com/heimdal/heimdal/security/advisories/GHSA-64mq-fvfj-5x3c
- https://web.mit.edu/kerberos/krb5-1.20/README-1.20.1.txt
- https://web.mit.edu/kerberos/krb5-1.19/
- https://bugzilla.samba.org/show_bug.cgi?id=15203
- https://security.netapp.com/advisory/ntap-20230216-0008/
- https://security.netapp.com/advisory/ntap-20230223-0001/
- GLSA-202309-06vendor-advisory
- GLSA-202310-06vendor-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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